Snap-8 calculator
A topical cosmetic peptide marketed as a 'botox-like' anti-wrinkle ingredient. Cosmetic-grade evidence only.
Also known as: Acetyl octapeptide-3, Acetyl Octapeptide-3 (Snap-8)
FDA status — not an approved drug 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.
Schedule Snap-8 → Set your dosing schedule and get a phone notification when each dose is due. Free.
What Snap-8 is
Snap-8 (acetyl octapeptide-3) is a cosmetic peptide used topically in anti-wrinkle skincare, marketed as a milder alternative to botulinum toxin. It targets the same muscle-contraction pathway but only at the skin surface, with far weaker effects. It is a cosmetic ingredient with cosmetic-grade evidence.
Research depth: 2/5 Cosmetic-grade evidence for modest topical benefit; not comparable to botulinum toxin. Human trials: Topical cosmetic studies. This measures how much has been studied — counting animal and laboratory work — not whether it works for you.
How Snap-8 works
It is designed to interfere with the SNARE complex that releases the neurotransmitter triggering facial-muscle contraction — the same target as botulinum toxin but acting topically and far less potently. By modestly reducing expression-muscle activity at the surface, it aims to soften the appearance of expression lines.
Snap-8 side effects
Commonly reported
- Skin irritation with topical use
- Generally well tolerated
- Effects are modest and temporary
Serious — seek medical care
- No established injectable safety data — it is a topical cosmetic
- Not comparable to botulinum toxin despite marketing
- Cosmetic-grade evidence only
This list is not exhaustive. Report anything unexpected to the clinician who prescribed it. If you have severe abdominal pain, trouble breathing, or signs of an allergic reaction, seek care the same day. See also our guide to peptide side effects by class.
A worked example
A 10 mg vial reconstituted with 2 mL of bacteriostatic water gives 5 mg/mL. A 3000 mcg dose is then 0.6 mL — about 60 units on a 100-unit insulin syringe, giving roughly 3 doses per vial before accounting for residual volume left in the vial and syringe.
Prefer paper? Download the printable Snap-8 dosing chart (PDF) — every vial size and water volume in syringe units, with the same review byline as this page. All charts →
Commonly cited dose range
Figures circulating for Snap-8 run from 1000 mcg to 10000 mcg. Snap-8 is a topical cosmetic ingredient, not an injectable. Figures shown reflect topical-formulation reference amounts. There is no injectable dose.
Read this as reference information, not instruction. These numbers describe what is commonly discussed, not what is right for any individual. Dose, frequency, and whether to use Snap-8 at all are decisions for a licensed clinician who knows your history.
Common questions
Is Snap-8 like Botox?
It is marketed as a milder, topical 'botox-like' ingredient targeting the same wrinkle pathway, but it is far weaker and works only on the skin surface. It is a cosmetic, not a drug, and is not comparable to botulinum toxin injections.
Is Snap-8 injected?
No. Snap-8 is a topical cosmetic peptide used in creams and serums. There is no evidence base for injecting it, and injectable use is not advised.