Injectable peptides and what they do
An index of the injectable peptides people actually ask about, grouped by what they do. Each entry states FDA status plainly and links to a calculator with that peptide's vial sizes preset.
Most peptides on this list are not FDA-approved. Inclusion here is descriptive, not a recommendation. Dose figures are commonly discussed reference information, not prescriptions.
Metabolic & Weight Management
Semaglutide · Ozempic, Wegovy, Rybelsus
A GLP-1 receptor agonist prescribed for type 2 diabetes and chronic weight management, dosed once weekly.
FDA status: FDA-approved as a prescription drug (Ozempic, Wegovy, Rybelsus). Compounded semaglutide is not FDA-approved and is not reviewed by FDA for safety, effectiveness, or quality.
Commonly discussed: 250 mcg – 2.4 mg · calculator · chart PDF
Tirzepatide · Mounjaro, Zepbound
A dual GIP and GLP-1 receptor agonist prescribed for type 2 diabetes and chronic weight management, dosed once weekly.
FDA status: FDA-approved as a prescription drug (Mounjaro, Zepbound). Compounded tirzepatide is not FDA-approved and is not reviewed by FDA for safety, effectiveness, or quality.
Commonly discussed: 2.5 mg – 15 mg · calculator · chart PDF
Retatrutide · LY3437943
An investigational triple receptor agonist studied for obesity and metabolic disease. Not available as an approved medicine.
FDA status: Investigational. Retatrutide is not FDA-approved for any use and remains in clinical trials. Material sold outside a trial is not an approved drug.
Commonly discussed: 500 mcg – 12 mg · calculator · chart PDF
AOD-9604 · Anti-obesity drug 9604, hGH fragment 176-191
A fragment of human growth hormone originally investigated for obesity, which failed to meet endpoints in clinical trials.
FDA status: Not FDA-approved for any use. AOD-9604 was placed in Category 2 of FDA's bulk drug substances list. It did not demonstrate efficacy for weight loss in clinical trials.
Commonly discussed: 250 mcg – 500 mcg · calculator · chart PDF
5-Amino-1MQ · 5-amino-1-methylquinolinium, 5-Amino-1-methylquinoline
A small-molecule NNMT inhibitor studied for effects on fat cell metabolism. Not a peptide, and not an approved drug.
FDA status: Not FDA-approved for any use. 5-Amino-1MQ is a research compound and is not reviewed by FDA for safety, effectiveness, or quality.
Commonly discussed: 50 mg – 150 mg · calculator · chart PDF
Adipotide · FTPP, Fat-targeted proapoptotic peptide, Prohibitin-targeting peptide
An investigational peptide designed to destroy the blood vessels feeding white fat. Studied mainly in animals, with early human work halted.
FDA status: Not FDA-approved for any use. Adipotide is an investigational compound; human development did not proceed past early studies.
Commonly discussed: 32 mg – 66 mg · calculator · chart PDF
AICAR · AICA ribonucleotide, Acadesine, 5-Aminoimidazole-4-carboxamide ribonucleotide
An AMPK activator studied as an 'exercise mimetic.' Not a peptide, prohibited in sport, and not approved for human use.
FDA status: Not FDA-approved for any use. AICAR (acadesine) is a research compound prohibited by WADA and not approved for human use.
Commonly discussed: 25 mg – 100 mg · calculator · chart PDF
Cagrilintide · Amylin analog, AM833
An investigational long-acting amylin analog for weight management, studied alone and in combination with semaglutide.
FDA status: Not FDA-approved for any use. Cagrilintide is an investigational drug in clinical development; it has not been approved.
Commonly discussed: 2.4 mg – 2.4 mg · calculator · chart PDF
Cagrilintide + Semaglutide · CagriSema, Amylin + GLP-1 combination
The investigational fixed combination of the amylin analog cagrilintide with the GLP-1 agonist semaglutide, developed for greater weight loss.
FDA status: Not FDA-approved. CagriSema (cagrilintide with semaglutide) is an investigational combination in clinical development and has not been approved.
Commonly discussed: 2.4 mg – 2.4 mg · calculator · chart PDF
L-Carnitine · Carnitine, Levocarnitine
A naturally occurring compound involved in fat transport into mitochondria, available as an oral supplement and an injectable prescription product.
FDA status: Levocarnitine is FDA-approved as a prescription drug for carnitine deficiency. Over-the-counter L-carnitine sold for weight loss is a dietary supplement and is not FDA-approved to treat any condition.
Commonly discussed: 500 mg – 2000 mg · calculator · chart PDF
Mazdutide · LY3305677, GLP-1/glucagon dual agonist
An investigational dual GLP-1 and glucagon receptor agonist developed for weight management and metabolic disease.
FDA status: Not FDA-approved for any use. Mazdutide is an investigational drug in clinical development; it has not been approved.
Commonly discussed: 4 mg – 9 mg · calculator · chart PDF
Methionine + Choline + L-Carnitine + Dexpanthenol · Lipotropic injection blend, Lipo injection
A compounded 'lipotropic' injection blend of nutrients marketed for weight loss. Evidence for meaningful fat loss is weak.
FDA status: The individual ingredients are nutrients, not FDA-approved for weight loss. Compounded lipotropic blends are not reviewed by FDA for safety, effectiveness, or quality.
Commonly discussed: 5000 mg – 15000 mg · calculator · chart PDF
MIC (Lipo-C with B12) · Methionine Inositol Choline, Lipotropic B12 injection
A lipotropic injection blend of methionine, inositol, and choline, often combined with B12 or carnitine. Evidence for weight loss is weak.
FDA status: The ingredients are nutrients, not FDA-approved for weight loss. Compounded MIC blends are not reviewed by FDA for safety, effectiveness, or quality.
Commonly discussed: 5000 mg – 15000 mg · calculator · chart PDF
MOTS-c · Mitochondrial-derived peptide MOTS-c
A mitochondria-encoded peptide studied for effects on metabolism and insulin sensitivity. Human evidence is early.
FDA status: Not FDA-approved for any use. MOTS-c is a research peptide and is not reviewed by FDA for safety, effectiveness, or quality.
Commonly discussed: 5 mg – 15 mg · calculator · chart PDF
Retatrutide + Cagrilintide · Triple agonist + amylin combination
An investigational pairing of the triple agonist retatrutide with the amylin analog cagrilintide. No combined product is approved.
FDA status: Not FDA-approved. Neither retatrutide nor cagrilintide is approved, and no combined product exists as an approved drug.
Commonly discussed: 2.4 mg – 2.4 mg · calculator · chart PDF
Retatrutide + Tirzepatide · Triple + dual agonist blend
An unstandardized supplier blend of retatrutide and tirzepatide. No such combined product is approved or studied.
FDA status: Not FDA-approved. Tirzepatide is approved as a single agent (Mounjaro, Zepbound), but retatrutide is investigational, and no combination of the two is approved or studied.
Commonly discussed: 2.4 mg – 12 mg · calculator · chart PDF
Survodutide · BI 456906, GLP-1/glucagon dual agonist
An investigational dual GLP-1 and glucagon receptor agonist studied for obesity and metabolic liver disease (MASH).
FDA status: Not FDA-approved for any use. Survodutide is an investigational drug in clinical development; it has not been approved.
Commonly discussed: 2.4 mg – 6 mg · calculator · chart PDF
Recovery & Tissue Repair
BPC-157 · Body Protection Compound 157, Pentadecapeptide BPC 157
A synthetic 15-amino-acid peptide widely discussed in connection with tissue repair. Human evidence is very limited.
FDA status: Not FDA-approved for any use. In 2023 FDA placed BPC-157 in Category 2 of its bulk drug substances list, citing significant safety risks for use in compounding.
Commonly discussed: 200 mcg – 500 mcg · calculator · chart PDF
TB-500 · Thymosin Beta-4 fragment, TB4
A synthetic fragment related to thymosin beta-4, discussed alongside BPC-157 in repair-focused protocols.
FDA status: Not FDA-approved for any use. Thymosin beta-4 was placed in Category 2 of FDA's bulk drug substances list. Prohibited in sport by WADA.
Commonly discussed: 2 mg – 5 mg · calculator · chart PDF
GHK-Cu · Copper peptide, Copper tripeptide-1
A copper-binding tripeptide common in topical skin and hair formulations, also sold as a lyophilized vial.
FDA status: Not FDA-approved as a drug. GHK-Cu appears widely as a cosmetic ingredient in topical products, which are regulated differently from injectable drugs.
Commonly discussed: 1 mg – 2 mg · calculator · chart PDF
BPC-157 + TB-500 · Wolverine stack, BPC/TB4 blend
A popular unregulated pairing of BPC-157 and TB-500 for tissue repair. Neither component is approved, and the combination is unstudied.
FDA status: Not FDA-approved. Both BPC-157 and the thymosin beta-4 fragment in TB-500 are in Category 2 of FDA's bulk drug substances list, and the combination has not been studied.
Commonly discussed: 250 mcg – 1 mg · calculator · chart PDF
Bronchogen · Bronchial peptide bioregulator
A short 'peptide bioregulator' from the Russian cytomedin tradition, marketed for respiratory support. Evidence is thin and largely non-Western.
FDA status: Not FDA-approved for any use. Bronchogen is a peptide bioregulator sold as a research or supplement product and is not reviewed by FDA.
Commonly discussed: 10 mg – 30 mg · calculator · chart PDF
Cartalax · Cartilage peptide bioregulator, Ala-Glu-Asp tripeptide
A short cartilage-targeted 'peptide bioregulator' marketed for joint support. Evidence is thin and largely regional.
FDA status: Not FDA-approved for any use. Cartalax is a peptide bioregulator sold as a research or supplement product and is not reviewed by FDA.
Commonly discussed: 10 mg – 30 mg · calculator · chart PDF
GLOW · Glow blend, GHK-Cu / BPC-157 / TB-500 blend
A branded supplier blend, typically combining GHK-Cu with repair peptides like BPC-157 and TB-500. Composition varies by supplier and is unregulated.
FDA status: Not FDA-approved. GLOW is a compounded blend of unapproved peptides; the components are not FDA-approved and the blend is not reviewed for safety or quality.
Commonly discussed: 1 mg – 5 mg · calculator · chart PDF
KLOW · KLOW blend, KPV / GHK-Cu repair blend
A branded supplier blend, typically combining the anti-inflammatory peptide KPV with GHK-Cu and repair peptides. Composition varies and is unregulated.
FDA status: Not FDA-approved. KLOW is a compounded blend of unapproved peptides; the components are not FDA-approved and the blend is not reviewed for safety or quality.
Commonly discussed: 1 mg – 5 mg · calculator · chart PDF
KPV · Lysine-Proline-Valine, alpha-MSH fragment
A tripeptide fragment of alpha-MSH studied for anti-inflammatory effects, particularly in the gut. Human evidence is early.
FDA status: Not FDA-approved for any use. KPV is a research peptide and is not reviewed by FDA for safety, effectiveness, or quality.
Commonly discussed: 250 mcg – 1 mg · calculator · chart PDF
Thymosin Alpha-1 · Ta1, Zadaxin, Thymalfasin
An immune-modulating peptide approved in some countries for hepatitis and as a vaccine adjuvant, but not in the United States.
FDA status: Not FDA-approved in the United States. Thymosin alpha-1 (thymalfasin) is approved in some other countries under the name Zadaxin for hepatitis B and C and as a vaccine adjuvant.
Commonly discussed: 1.6 mg – 6.4 mg · calculator · chart PDF
Growth Hormone Axis
Ipamorelin
A selective growth hormone secretagogue often discussed together with CJC-1295.
FDA status: Not FDA-approved for any use. Ipamorelin was placed in Category 2 of FDA's bulk drug substances list, which restricts its use in compounding.
Commonly discussed: 100 mcg – 300 mcg · calculator · chart PDF
CJC-1295 · Modified GRF (1-29), CJC-1295 no DAC
A GHRH analog discussed in growth hormone secretagogue protocols, frequently paired with ipamorelin.
FDA status: Not FDA-approved for any use. CJC-1295 was placed in Category 2 of FDA's bulk drug substances list. Prohibited in sport by WADA.
Commonly discussed: 100 mcg – 300 mcg · calculator · chart PDF
Sermorelin · GRF 1-29, Sermorelin Acetate, Sermorelin acetate
A GHRH analog historically used in diagnostic testing and now dispensed largely through compounding pharmacies.
FDA status: Previously FDA-approved as Geref, withdrawn from the US market in 2008 for commercial reasons. It is not currently marketed as an FDA-approved product but does appear on FDA's Category 1 bulk substances list for compounding.
Commonly discussed: 100 mcg – 500 mcg · calculator · chart PDF
Tesamorelin · Egrifta
A GHRH analog approved to reduce excess abdominal fat in people with HIV-associated lipodystrophy.
FDA status: FDA-approved as Egrifta for HIV-associated lipodystrophy. Use for any other purpose is off-label and requires a prescribing clinician's judgment.
Commonly discussed: 1 mg – 2 mg · calculator · chart PDF
CJC-1295 No DAC + Ipamorelin · CJC/Ipamorelin blend, GH secretagogue stack
The most common growth-hormone secretagogue pairing, combining a GHRH analog with a ghrelin-mimetic. Neither component is approved; the blend is unregulated.
FDA status: Not FDA-approved. Both CJC-1295 and ipamorelin are in Category 2 of FDA's bulk drug substances list, and the combination has not been studied.
Commonly discussed: 100 mcg – 300 mcg · calculator · chart PDF
CJC-1295 With DAC · CJC-1295 DAC, Drug Affinity Complex CJC
The long-acting form of CJC-1295, bound to a drug affinity complex that extends its half-life to about a week. Not approved; prohibited in sport.
FDA status: Not FDA-approved for any use. CJC-1295 was placed in Category 2 of FDA's bulk drug substances list. Prohibited in sport by WADA.
Commonly discussed: 1 mg – 4 mg · calculator · chart PDF
Follistatin · Follistatin 344, FST, Myostatin-binding protein
A protein that binds and neutralizes myostatin, studied for muscle growth. Investigated via gene therapy; peptide use is unstudied and risky.
FDA status: Not FDA-approved for any use. Follistatin is a research protein; direct peptide use has no human trials and is not reviewed by FDA.
Commonly discussed: 100 mcg – 500 mcg · calculator · chart PDF
GHRP-2 · Growth Hormone Releasing Peptide-2, Pralmorelin
A ghrelin-mimetic growth hormone secretagogue, one of the earlier and less selective of its class. Not approved; prohibited in sport.
FDA status: Not FDA-approved for any use. GHRP-2 (pralmorelin) is a research peptide and is prohibited in sport by WADA.
Commonly discussed: 100 mcg – 300 mcg · calculator · chart PDF
GHRP-6 · Growth Hormone Releasing Peptide-6
A ghrelin-mimetic growth hormone secretagogue notable for strongly stimulating appetite. Not approved; prohibited in sport.
FDA status: Not FDA-approved for any use. GHRP-6 is a research peptide and is prohibited in sport by WADA.
Commonly discussed: 100 mcg – 300 mcg · calculator · chart PDF
Hexarelin · Hexarelin Acetate, Examorelin
A potent ghrelin-mimetic growth hormone secretagogue, among the strongest of its class but with receptor desensitization over time. Not approved.
FDA status: Not FDA-approved for any use. Hexarelin (examorelin) is a research peptide and is prohibited in sport by WADA.
Commonly discussed: 100 mcg – 400 mcg · calculator · chart PDF
HGH 191AA · Human Growth Hormone, Somatropin, rhGH
Recombinant human growth hormone — the full 191-amino-acid hormone. A prescription drug for specific deficiency states; widely misused.
FDA status: FDA-approved as somatropin for specific indications including growth hormone deficiency and certain wasting syndromes. Use for anti-aging, athletic, or cosmetic purposes is not an approved use and distributing it for those purposes is illegal.
Commonly discussed: 1 mg – 4 mg · calculator · chart PDF
IGF-1 LR3 · Long R3 IGF-1, Insulin-like Growth Factor-1 Long R3
A long-acting modified form of IGF-1 studied for anabolic effects. A research compound with no approved use and real hypoglycemia risk.
FDA status: Not FDA-approved for any use. IGF-1 LR3 is a research compound. Pharmaceutical IGF-1 (mecasermin) is a different, approved product for severe growth failure.
Commonly discussed: 20 mcg – 100 mcg · calculator · chart PDF
IGF-DES · IGF-1 DES, Des(1-3) IGF-1
A truncated, fast-acting form of IGF-1 with reduced binding-protein interference. A research compound with no approved use and hypoglycemia risk.
FDA status: Not FDA-approved for any use. IGF-DES is a research compound. Pharmaceutical IGF-1 (mecasermin) is a different, approved product for severe growth failure.
Commonly discussed: 20 mcg – 100 mcg · calculator · chart PDF
MGF · Mechano Growth Factor, IGF-1Ec
A splice variant of IGF-1 produced by muscle in response to mechanical damage, studied for muscle repair. No human trials.
FDA status: Not FDA-approved for any use. MGF (mechano growth factor) is a research peptide and is not reviewed by FDA.
Commonly discussed: 100 mcg – 400 mcg · calculator · chart PDF
PEG-MGF · PEGylated Mechano Growth Factor, PEG-MGF
A PEGylated (longer-acting) form of mechano growth factor, modified to extend its short half-life. No human trials.
FDA status: Not FDA-approved for any use. PEG-MGF is a research peptide and is not reviewed by FDA.
Commonly discussed: 100 mcg – 400 mcg · calculator · chart PDF
Tesamorelin + Ipamorelin · Tesa/Ipa blend, GHRH + secretagogue blend
A pairing of the approved GHRH analog tesamorelin with the secretagogue ipamorelin. Tesamorelin alone is approved; the combination is not studied.
FDA status: Tesamorelin is FDA-approved as Egrifta for HIV-associated lipodystrophy. Ipamorelin is not approved, and no combination of the two is approved or studied.
Commonly discussed: 1 mg – 2 mg · calculator · chart PDF
Hormonal & Sexual Health
PT-141 · Bremelanotide, Vyleesi
A melanocortin receptor agonist approved for hypoactive sexual desire disorder in premenopausal women.
FDA status: FDA-approved as Vyleesi (bremelanotide) for acquired, generalized hypoactive sexual desire disorder in premenopausal women. Research-grade PT-141 sold outside that product is not FDA-approved.
Commonly discussed: 500 mcg – 1.75 mg · calculator · chart PDF
HCG · Human Chorionic Gonadotropin, hCG
A hormone used medically for fertility and, in men, to stimulate testosterone production. A prescription drug; also misused in sport.
FDA status: HCG is FDA-approved as a prescription drug for specific indications including certain fertility treatments and hypogonadism-related uses. It is not approved for weight loss, and its sale for that purpose is illegal.
Commonly discussed: 500 mcg – 5 mg · calculator · chart PDF
HMG · Human Menopausal Gonadotropin, Menotropins, Menopur
A purified preparation of FSH and LH used for fertility treatment. A prescription drug administered under specialist care.
FDA status: HMG (menotropins) is FDA-approved as a prescription drug for specific fertility indications. It is used under specialist supervision, not as a self-administered supplement.
Commonly discussed: 75 mcg – 225 mcg · calculator · chart PDF
Kisspeptin-10 · Kisspeptin, Metastin, KISS1 peptide
A peptide that triggers the hormonal cascade leading to reproductive hormone release. Studied in humans for fertility and reproductive function.
FDA status: Not FDA-approved for any use. Kisspeptin is an investigational peptide studied in human research settings but not approved as a drug.
Commonly discussed: 100 mcg – 800 mcg · calculator · chart PDF
Melanotan-1 · Afamelanotide, Scenesse
A melanocortin agonist approved as an implant for a rare light-sensitivity disorder. Non-approved tanning use is unregulated and risky.
FDA status: Afamelanotide is FDA-approved as an implant (Scenesse) for a rare light-sensitivity disorder (erythropoietic protoporphyria). Melanotan-1 sold for tanning is not the approved product and is not reviewed by FDA.
Commonly discussed: 1 mg – 4 mg · calculator · chart PDF
Melanotan-2 · MT-2, Melanotan II
A non-selective melanocortin agonist sold for tanning and libido. Not approved anywhere; unregulated use carries real risks.
FDA status: Not FDA-approved for any use. Melanotan-2 is not approved in any country and is sold as an unregulated research or cosmetic product.
Commonly discussed: 250 mcg – 1 mg · calculator · chart PDF
Oxytocin · Oxytocin Acetate, Pitocin, Syntocinon
A hormone used medically to induce labor and control postpartum bleeding. Also studied for social bonding. A prescription drug for its medical uses.
FDA status: Oxytocin is FDA-approved as a prescription drug (Pitocin) for inducing labor and controlling postpartum bleeding. Non-medical intranasal or other uses are not approved indications.
Commonly discussed: 1 mg – 10 mg · calculator · chart PDF
Testosterone Cypionate · Depo-Testosterone, Test Cyp
A long-acting injectable testosterone ester. A controlled substance and prescription drug for diagnosed hypogonadism.
FDA status: Testosterone cypionate is FDA-approved as a prescription drug for diagnosed testosterone deficiency. It is a Schedule III controlled substance; non-medical use is illegal and prohibited in sport.
Commonly discussed: 50 mg – 200 mg · calculator · chart PDF
Testosterone Enanthate · Delatestryl, Test E
A long-acting injectable testosterone ester. A controlled substance and prescription drug for diagnosed hypogonadism.
FDA status: Testosterone enanthate is FDA-approved as a prescription drug for diagnosed testosterone deficiency. It is a Schedule III controlled substance; non-medical use is illegal and prohibited in sport.
Commonly discussed: 50 mg – 200 mg · calculator · chart PDF
Longevity & Cellular Health
Cardiogen · Cardiac peptide bioregulator, Ala-Glu-Asp-Arg tetrapeptide
A short heart-targeted 'peptide bioregulator' marketed for cardiovascular support. Evidence is thin and largely regional.
FDA status: Not FDA-approved for any use. Cardiogen is a peptide bioregulator sold as a research or supplement product and is not reviewed by FDA.
Commonly discussed: 10 mg – 30 mg · calculator · chart PDF
Epithalon · Epitalon, Epithalone, Ala-Glu-Asp-Gly tetrapeptide
A tetrapeptide studied for effects on telomerase and aging markers. Popular in longevity circles, but human evidence is limited and mostly regional.
FDA status: Not FDA-approved for any use. Epithalon is a research peptide and is not reviewed by FDA for safety, effectiveness, or quality.
Commonly discussed: 5 mg – 20 mg · calculator · chart PDF
FOXO4-DRI · FOXO4-D-Retro-Inverso, Senolytic peptide
An investigational 'senolytic' peptide designed to clear senescent (aged) cells. Studied in animals; no human trials.
FDA status: Not FDA-approved for any use. FOXO4-DRI is a research peptide with no human trials and is not reviewed by FDA.
Commonly discussed: 5 mg – 20 mg · calculator · chart PDF
Gonadorelin · GnRH, Luteinizing hormone-releasing hormone, LHRH
A synthetic form of GnRH used as a diagnostic agent and to stimulate gonadotropin release. Pulsatile dosing is used for certain fertility indications.
FDA status: Gonadorelin is FDA-approved as a diagnostic agent for assessing pituitary gonadotropin reserve. Compounded or non-approved uses are off-label and require a prescribing clinician.
Commonly discussed: 100 mcg – 800 mcg · calculator · chart PDF
Humanin · Mitochondrial-derived peptide Humanin, HN
A mitochondria-encoded peptide with cytoprotective effects in animal models, studied for roles in aging and neurodegeneration. No human trials.
FDA status: Not FDA-approved for any use. Humanin is a research peptide and is not reviewed by FDA for safety, effectiveness, or quality.
Commonly discussed: 5 mg – 20 mg · calculator · chart PDF
NAD+ · Nicotinamide adenine dinucleotide, NAD
A coenzyme central to cellular energy metabolism, supplemented orally (as precursors) and by IV. Levels decline with age. Not a peptide.
FDA status: NAD+ itself is not FDA-approved as a drug. Oral NAD precursors (NR, NMN) are sold as dietary supplements; IV NAD+ is administered in clinics but is not FDA-approved to treat any condition.
Commonly discussed: 250 mg – 1000 mg · calculator · chart PDF
SS-31 · Elamipretide, Bendavia, MTP-131
A mitochondria-targeted peptide studied in human trials for mitochondrial and heart disease. Investigational, with mixed trial results.
FDA status: Not FDA-approved for any use. SS-31 (elamipretide) is an investigational drug that has been through human clinical trials but has not been approved.
Commonly discussed: 40 mg – 80 mg · calculator · chart PDF
Thymalin / Thymulin · Thymic peptide, Thymalin bioregulator
Thymic peptides studied for immune modulation, popular in longevity protocols. Evidence is largely regional; thymulin itself is not available as an approved drug.
FDA status: Not FDA-approved for any use. Thymalin and thymulin are thymic peptides sold as research or supplement products and are not reviewed by FDA.
Commonly discussed: 10 mg – 30 mg · calculator · chart PDF
Vesugen · Vascular peptide bioregulator, Lys-Glu-Asp tripeptide
A short blood-vessel-targeted 'peptide bioregulator' marketed for vascular support. Evidence is thin and largely regional.
FDA status: Not FDA-approved for any use. Vesugen is a peptide bioregulator sold as a research or supplement product and is not reviewed by FDA.
Commonly discussed: 10 mg – 30 mg · calculator · chart PDF
Vilon · Thymic peptide bioregulator, Lys-Glu dipeptide
A short thymus-derived 'peptide bioregulator' marketed for immune and longevity support. Evidence is thin and largely regional.
FDA status: Not FDA-approved for any use. Vilon is a peptide bioregulator sold as a research or supplement product and is not reviewed by FDA.
Commonly discussed: 10 mg – 30 mg · calculator · chart PDF
Cognitive & Neurological
Adamax · Adamax peptide
A research peptide marketed for cognitive support. There is no meaningful published evidence base for it.
FDA status: Not FDA-approved for any use. Adamax is a research compound with no established evidence base and is not reviewed by FDA.
Commonly discussed: 500 mcg – 2 mg · calculator · chart PDF
Adamax-982 · Adamax 982 research peptide
A supplier-branded research peptide marketed for cognitive support. There is no meaningful published evidence base for it.
FDA status: Not FDA-approved for any use. Adamax-982 is a research compound with no established evidence base and is not reviewed by FDA.
Commonly discussed: 500 mcg – 2 mg · calculator · chart PDF
Adamax-984 · Adamax 984 research peptide
A supplier-branded research peptide marketed for cognitive support. There is no meaningful published evidence base for it.
FDA status: Not FDA-approved for any use. Adamax-984 is a research compound with no established evidence base and is not reviewed by FDA.
Commonly discussed: 500 mcg – 2 mg · calculator · chart PDF
Adamax-1032 · Adamax 1032 research peptide, Adamantane-containing peptide
A supplier-branded research peptide containing an adamantane group, marketed for cognitive support. No meaningful published evidence base.
FDA status: Not FDA-approved for any use. Adamax-1032 is a research compound with no established evidence base and is not reviewed by FDA.
Commonly discussed: 500 mcg – 2 mg · calculator · chart PDF
Cerebrolysin · Cerebrolysin hydrolysate, Porcine brain-derived peptide
A mixture of peptides derived from pig brain, used in some countries for stroke and dementia. Not approved in the US; evidence is contested.
FDA status: Not FDA-approved in the United States. Cerebrolysin is used in some other countries for stroke and dementia, but its evidence base is contested and it is not FDA-approved.
Commonly discussed: 10 mg – 60 mg · calculator · chart PDF
Cerebroprotein Hydrolysate · Cerebroprotein, Brain protein hydrolysate
A brain-derived peptide mixture similar to Cerebrolysin, used in some countries for neurological conditions. Not approved in the US.
FDA status: Not FDA-approved in the United States. Cerebroprotein hydrolysate is used in some other countries but is not FDA-approved, and its evidence base is limited and contested.
Commonly discussed: 10 mg – 60 mg · calculator · chart PDF
Cortagen · Cortical peptide bioregulator, Ala-Glu-Asp-Pro tetrapeptide
A short brain-targeted 'peptide bioregulator' marketed for cognitive support. Evidence is thin and largely regional.
FDA status: Not FDA-approved for any use. Cortagen is a peptide bioregulator sold as a research or supplement product and is not reviewed by FDA.
Commonly discussed: 10 mg – 30 mg · calculator · chart PDF
Dihexa · N-hexanoic-Tyr-Ile-(6) aminohexanoic amide, PNB-0408
A research peptide derived from angiotensin IV, studied for potent cognitive effects in animal models. Extremely potent; no human trials.
FDA status: Not FDA-approved for any use. Dihexa is a research compound with no human trials and is not reviewed by FDA.
Commonly discussed: 5 mg – 20 mg · calculator · chart PDF
DSIP · Delta Sleep-Inducing Peptide
A nonapeptide studied for sleep and stress effects since the 1970s. Evidence for a clear sleep-inducing effect is inconsistent.
FDA status: Not FDA-approved for any use. DSIP is a research peptide and is not reviewed by FDA for safety, effectiveness, or quality.
Commonly discussed: 100 mcg – 500 mcg · calculator · chart PDF
PE-22-28 · PE22-28, Spadin analog
A short peptide analog studied for rapid antidepressant-like effects in animal models via TREK-1 channel blockade. No human trials.
FDA status: Not FDA-approved for any use. PE-22-28 is a research peptide with no human trials and is not reviewed by FDA.
Commonly discussed: 250 mcg – 1 mg · calculator · chart PDF
Pinealon · Pineal peptide bioregulator, Glu-Asp-Arg tripeptide
A short pineal-gland-targeted 'peptide bioregulator' marketed for sleep and cognitive support. Evidence is thin and largely regional.
FDA status: Not FDA-approved for any use. Pinealon is a peptide bioregulator sold as a research or supplement product and is not reviewed by FDA.
Commonly discussed: 10 mg – 30 mg · calculator · chart PDF
Selank · TP-7, Selank acetate
A synthetic heptapeptide analog of tuftsin, studied for anxiolytic effects. Used in Russia; not approved in the US.
FDA status: Not FDA-approved in the United States. Selank is used in Russia as an anxiolytic but is not FDA-approved, and its evidence base is largely regional.
Commonly discussed: 250 mcg – 1 mg · calculator · chart PDF
Selank + Semax · Selank/Semax blend, Nootropic peptide blend
A pairing of the anxiolytic peptide Selank with the nootropic peptide Semax. Neither is approved in the US; the combination is unstudied.
FDA status: Not FDA-approved. Neither Selank nor Semax is FDA-approved, and the combination has not been studied.
Commonly discussed: 250 mcg – 1 mg · calculator · chart PDF
Semax · ACTH(4-10) analog, Met-Glu-His-Phe-Pro-Gly-Pro
A synthetic fragment of ACTH studied for nootropic and neuroprotective effects. Used in Russia; not approved in the US.
FDA status: Not FDA-approved in the United States. Semax is used in Russia as a nootropic but is not FDA-approved, and its evidence base is largely regional.
Commonly discussed: 300 mcg – 1.2 mg · calculator · chart PDF
Specialty & Other Compounds
ACE-031 · Activin receptor type IIB, ActRIIB-Fc
An investigational myostatin-inhibiting protein developed for muscular dystrophy. Development was halted over safety signals.
FDA status: Not FDA-approved for any use. ACE-031 is an investigational protein whose clinical development was discontinued after safety signals in trials.
Commonly discussed: 1 mg – 10 mg · calculator · chart PDF
Acetic Acid Solution · Dilute acetic acid, 0.6% acetic acid
A dilute acid solution sometimes used to reconstitute certain peptides that don't dissolve well in plain water. Not a drug.
FDA status: Not a drug and not FDA-approved for any therapeutic use. Dilute acetic acid solution is a laboratory reconstitution aid, not a medication.
Commonly discussed: 1000 mg – 1000 mg · calculator · chart PDF
AHK-Cu · Ala-His-Lys copper, AHK copper peptide
A copper-binding peptide studied for hair growth and skin, a relative of GHK-Cu. Largely cosmetic and in-vitro evidence.
FDA status: Not FDA-approved as a drug. AHK-Cu is a copper peptide used in cosmetic and research products; it is not reviewed by FDA as an injectable drug.
Commonly discussed: 1 mg – 5 mg · calculator · chart PDF
Alprostadil · Prostaglandin E1, PGE1, Caverject, Muse
A prostaglandin used to treat erectile dysfunction and to keep a fetal heart vessel open in newborns. A prescription drug.
FDA status: Alprostadil is FDA-approved as a prescription drug for erectile dysfunction (Caverject, Edex, Muse) and to maintain ductus arteriosus patency in newborns. It requires a prescription and careful dosing.
Commonly discussed: 5 mcg – 40 mcg · calculator · chart PDF
ARA-290 · Cibinetide, Erythropoietin-derived peptide
A peptide derived from erythropoietin, studied for nerve pain and tissue repair without the blood-thickening effects of EPO. Investigational.
FDA status: Not FDA-approved for any use. ARA-290 (cibinetide) is an investigational peptide that has been through human trials but is not approved.
Commonly discussed: 1 mg – 8 mg · calculator · chart PDF
Bacteriostatic Water · BAC water, Bacteriostatic water for injection, BW
Sterile water with 0.9% benzyl alcohol, used to dissolve and store injectable medications. The standard reconstitution liquid.
FDA status: Bacteriostatic water for injection is an FDA-regulated sterile diluent. It is not a drug itself — it is used to dissolve and store other injectable medications.
Commonly discussed: 1000 mg – 1000 mg · calculator · chart PDF
Botulinum Toxin · Botox, OnabotulinumtoxinA, Botulinum neurotoxin
A neurotoxin used medically and cosmetically to relax muscles. A prescription drug with strict handling — not a peptide for self-administration.
FDA status: Botulinum toxin is FDA-approved as a prescription drug (Botox and others) for specific medical and cosmetic indications. It is administered only by licensed clinicians and is never a self-administered product.
Commonly discussed: 400 mcg – 400 mcg · calculator · chart PDF
Crystagen · Crystalline peptide bioregulator, Immune peptide bioregulator
A short 'peptide bioregulator' marketed for immune support. Evidence is thin and largely regional.
FDA status: Not FDA-approved for any use. Crystagen is a peptide bioregulator sold as a research or supplement product and is not reviewed by FDA.
Commonly discussed: 10 mg – 30 mg · calculator · chart PDF
Dermorphin · Dermorphin peptide, Dermorphin heptapeptide
A potent opioid peptide originally from frog skin, with pain-relieving effects stronger than morphine in animals. Abused in horse racing; not for human use.
FDA status: Not FDA-approved for any use. Dermorphin is a potent opioid peptide with no approved human use, and it is prohibited in human and equine sport.
Commonly discussed: 100 mcg – 1 mg · calculator · chart PDF
Eloralintide · LY3841136, Amylin analog Eloralintide
An investigational next-generation amylin analog for weight management. Early-stage; not approved.
FDA status: Not FDA-approved for any use. Eloralintide is an investigational drug in early clinical development and has not been approved.
Commonly discussed: 1 mg – 6 mg · calculator · chart PDF
EPO · Erythropoietin, Epoetin alfa, Procrit, Epogen
A hormone that stimulates red blood cell production, used to treat certain anemias. A prescription drug with serious risks in misuse.
FDA status: Erythropoietin (epoetin alfa and others) is FDA-approved as a prescription drug for specific anemias. It carries a boxed warning for increased risk of death, blood clots, and tumor progression, and it is prohibited in sport.
Commonly discussed: 3 mg – 40 mg · calculator · chart PDF
GDF-8 · Myostatin, Growth Differentiation Factor 8
The scientific name for myostatin — the body's natural brake on muscle growth. Note: myostatin inhibitors are what's studied, not myostatin itself.
FDA status: Not FDA-approved for any use. GDF-8 is myostatin itself, which limits muscle growth; therapeutic interest is in blocking it, not administering it. There is no approved product.
Commonly discussed: 100 mcg – 1 mg · calculator · chart PDF
Glutathione · GSH, Reduced glutathione
The body's main intracellular antioxidant, given by IV and orally for various uses. Oral absorption is poor; IV use is clinical.
FDA status: Glutathione is not FDA-approved as a drug for general use. It is available as a supplement and is administered intravenously in clinics, but it is not FDA-approved to treat any condition.
Commonly discussed: 200 mg – 1200 mg · calculator · chart PDF
Hyaluronic Acid · HA, Sodium hyaluronate, Hyaluronan
A large sugar molecule used in skin fillers, joint injections, and topical products. Approved for specific uses; widely used cosmetically.
FDA status: Hyaluronic acid is FDA-approved in specific forms for dermal fillers and for injection into the knee for osteoarthritis. Topical and oral forms are cosmetics and supplements, not approved to treat disease.
Commonly discussed: 5 mg – 10 mg · calculator · chart PDF
Insulin · Insulin injection, Human insulin, Regular insulin
A life-sustaining hormone for diabetes. A prescription drug with a narrow safety margin — dosing errors can be fatal.
FDA status: Insulin is FDA-approved as a prescription drug for diabetes. Dosing is highly individualized and errors can be fatal; it must be managed by a prescribing clinician.
Commonly discussed: 3.5 mg – 3.5 mg · calculator · chart PDF
LC120 · LC120 peptide
A supplier-branded research compound. There is no meaningful published evidence base for it.
FDA status: Not FDA-approved for any use. LC120 is a research compound with no established evidence base and is not reviewed by FDA.
Commonly discussed: 500 mcg – 2 mg · calculator · chart PDF
LC216 · LC216 peptide
A supplier-branded research compound. There is no meaningful published evidence base for it.
FDA status: Not FDA-approved for any use. LC216 is a research compound with no established evidence base and is not reviewed by FDA.
Commonly discussed: 500 mcg – 2 mg · calculator · chart PDF
LL-37 · Cathelicidin, Human cathelicidin antimicrobial peptide
A human antimicrobial peptide involved in immune defense. Studied for infection and wound healing; complex immune effects, no approved use.
FDA status: Not FDA-approved for any use. LL-37 is a research peptide and is not reviewed by FDA for safety, effectiveness, or quality.
Commonly discussed: 100 mcg – 500 mcg · calculator · chart PDF
Lysine-Proline-Valine · KPV tripeptide, Lys-Pro-Val
The three-amino-acid sequence that makes up KPV, the anti-inflammatory fragment of alpha-MSH. See the KPV entry for the full picture.
FDA status: Not FDA-approved for any use. This is the KPV tripeptide, a research peptide not reviewed by FDA for safety, effectiveness, or quality.
Commonly discussed: 250 mcg – 1 mg · calculator · chart PDF
Matrixyl · Palmitoyl pentapeptide, Pal-KTTKS, Matrixyl 3000
A well-established cosmetic peptide used topically for skin aging. One of the few peptides with real cosmetic-trial support.
FDA status: Matrixyl is not FDA-approved as a drug — it is a cosmetic ingredient used topically in anti-aging skincare, which is regulated differently from drugs. Injectable use has no evidence base.
Commonly discussed: 1 mg – 10 mg · calculator · chart PDF
MK-677 · Ibutamoren, MK677, Oral GH secretagogue
An oral growth-hormone secretagogue (not a peptide) studied in human trials. Investigational; raises appetite and blood sugar.
FDA status: Not FDA-approved for any use. MK-677 (ibutamoren) is an investigational oral drug that has been through human trials but is not approved. It is prohibited in sport.
Commonly discussed: 10 mg – 50 mg · calculator · chart PDF
Phosphate Buffered Saline · PBS, Sterile saline buffer, 无菌水
A sterile salt-and-buffer solution used to dissolve and dilute laboratory compounds. Not a drug.
FDA status: Not a drug and not FDA-approved for any therapeutic use. Phosphate buffered saline is a laboratory diluent, not a medication.
Commonly discussed: 1000 mg – 1000 mg · calculator · chart PDF
PNC-27 · PNC27, Anti-cancer peptide PNC-27
A research peptide studied in the lab for selectively killing cancer cells. Cell and animal work only; no human trials.
FDA status: Not FDA-approved for any use. PNC-27 is a research peptide studied in laboratories with no human trials and is not reviewed by FDA.
Commonly discussed: 100 mcg – 1 mg · calculator · chart PDF
Relaxation PM · Relaxation PM blend, Sleep/relaxation peptide blend
A branded supplier blend marketed for relaxation and sleep. Composition varies by supplier and is unregulated.
FDA status: Not FDA-approved. Relaxation PM is a compounded blend with no standardized formulation, and it is not reviewed by FDA for safety or quality.
Commonly discussed: 500 mcg – 3 mg · calculator · chart PDF
SLU-PP-332 · SLUPP332, ERR agonist exercise mimetic
A research 'exercise mimetic' that activates estrogen-related receptors to mimic exercise metabolism. Animal studies only; not a peptide.
FDA status: Not FDA-approved for any use. SLU-PP-332 is a research compound studied in animals with no human trials and is not reviewed by FDA.
Commonly discussed: 50 mg – 250 mg · calculator · chart PDF
Snap-8 · Acetyl octapeptide-3, Acetyl Octapeptide-3 (Snap-8)
A topical cosmetic peptide marketed as a 'botox-like' anti-wrinkle ingredient. Cosmetic-grade evidence only.
FDA status: Snap-8 is not FDA-approved as a drug — it is a cosmetic ingredient used topically in anti-wrinkle skincare, which is regulated differently from drugs. Injectable use has no evidence base.
Commonly discussed: 1 mg – 10 mg · calculator · chart PDF
Testagen · Testicular peptide bioregulator, Lys-Glu-Asp-Gly peptide
A short testis-targeted 'peptide bioregulator' marketed for male hormonal support. Evidence is thin and largely regional.
FDA status: Not FDA-approved for any use. Testagen is a peptide bioregulator sold as a research or supplement product and is not reviewed by FDA.
Commonly discussed: 10 mg – 30 mg · calculator · chart PDF
Vasoactive Intestinal Peptide · VIP, Aviptadil, VIP acetate
A naturally occurring hormone that dilates blood vessels and airways. Studied for pulmonary hypertension and other conditions; investigational for most uses.
FDA status: Vasoactive intestinal peptide (aviptadil) is not FDA-approved for general use. It has been studied for pulmonary hypertension and other conditions and is approved in some countries in specific forms, but most uses are investigational.
Commonly discussed: 50 mcg – 400 mcg · calculator · chart PDF
VIP (Vasoactive Intestinal Peptide) · Aviptadil, Vasoactive Intestinal Peptide acetate
The common abbreviation for vasoactive intestinal peptide — a natural hormone that dilates blood vessels and airways. See the full VIP entry.
FDA status: VIP (aviptadil) is not FDA-approved for general use. It has been studied for pulmonary hypertension and other conditions and is approved in some countries in specific forms, but most uses are investigational.
Commonly discussed: 50 mcg – 400 mcg · calculator · chart PDF
Vitamin B12 · Cobalamin, Cyanocobalamin, Methylcobalamin
An essential B vitamin given by injection for deficiency. Not a peptide; well established for treating true deficiency.
FDA status: Vitamin B12 is an essential nutrient. Injectable B12 is an FDA-approved prescription treatment for deficiency; oral forms are dietary supplements. It is not approved for general energy or weight-loss claims.
Commonly discussed: 1 mg – 5 mg · calculator · chart PDF
Related
Peptide side effects · Are peptides legal? · All printable charts
Common questions
What are the most commonly used injectable peptides?
By volume, GLP-1 receptor agonists — semaglutide and tirzepatide — dominate, because they are FDA-approved prescription medications for diabetes and weight management. Outside approved medicine, BPC-157, TB-500, ipamorelin, and CJC-1295 are the most widely discussed, none of which are FDA-approved.
Why are peptides injected instead of taken as pills?
Peptides are chains of amino acids, so the digestive system breaks most of them down before they reach the bloodstream. Oral semaglutide exists but requires an absorption enhancer and much higher doses. Subcutaneous injection bypasses digestion entirely.
Which injectable peptides are FDA-approved?
Among those listed here: semaglutide (Ozempic, Wegovy), tirzepatide (Mounjaro, Zepbound), tesamorelin (Egrifta), and bremelanotide (Vyleesi). Sermorelin was approved as Geref but withdrawn from the market in 2008 for commercial reasons. Everything else on this page is unapproved.
Educational content, not medical or legal advice. This page summarizes public regulatory information and commonly discussed practice. It is reviewed by a clinician but is no substitute for advice from your own clinician or attorney.