VialOwlLibrary / Skin and hair
SNAP-8
Also known as Acetyl octapeptide-3
Largely unstudied
Octapeptide cosmetic ingredient related to argireline, used in anti wrinkle products. Very little independent published research.
Not an approved medicine. SNAP-8 is not an approved medicine for this use in Australia or the United States. This page summarises published research for information only. It is not a recommendation to use SNAP-8, and VialOwl does not sell or supply it.
Background
Cosmetic peptide (INCI name acetyl octapeptide-3) created by the Spanish ingredient maker Lipotec as a longer version of argireline (acetyl hexapeptide-3), which was designed to mimic part of the nerve protein SNAP-25.
How it is thought to work
Proposed to compete with SNAP-25 in the SNARE protein complex that nerves use to release acetylcholine, which in theory slightly reduces muscle contraction under the skin. Evidence for this comes from lab work on the related peptide argireline; it is not shown to penetrate skin enough to act like botulinum toxin.
What is claimed, and the evidence
| Claim | Evidence | Notes |
|---|---|---|
| Reduces expression lines and wrinkles when applied to the skin | Small human studies | No independent trial of SNAP-8 alone found on PubMed. One uncontrolled 12 week study of a microneedle patch containing it with several other actives reported fewer fine lines. The related argireline has small placebo controlled studies. |
| Works like 'Botox in a jar' | No published evidence | Marketing claim. Any effect is far weaker than botulinum toxin injections. |
| Injecting it enhances the effect | No published evidence | No published evidence; it is a cosmetic ingredient not intended for injection. |
Side effects
| Effect | How often | Notes |
|---|---|---|
| Skin irritation | Frequency unknown | The microneedle patch study reported no skin reactions; independent safety data for SNAP-8 alone were not found. |
| Unknown risks if injected Serious | Frequency unknown | No human data exist for injection; injected unregulated products carry infection and contamination risks. |
Warnings
- Very little independent published research; most efficacy data come from ingredient suppliers or multi ingredient products.
- It is a cosmetic ingredient, not a medicine, and is not intended for injection.
- Unapproved products are not made to medicine standards and may be contaminated, underdosed, overdosed or contain a different substance from the label; the TGA warns that injected unapproved peptides carry risks including contamination, infection and local tissue damage.
Regulatory status
- Australia
- Cosmetic ingredient. Not included on the ARTG as a medicine and not listed in the Poisons Standard (June 2026).
- United States
- Cosmetic ingredient; not an FDA approved drug.
Sources
- Efficacy of bioactive peptides loaded on hyaluronic acid microneedle patches: a monocentric clinical study
- A synthetic hexapeptide (Argireline) with antiwrinkle activity
- The anti-wrinkle efficacy of argireline in Chinese subjects: a randomized, placebo-controlled study
- TGA: Understanding your responsibilities when importing, compounding and supplying unapproved peptide products
Also in Skin and hair
From the VialOwl library, reviewed 26 September 2026. For education and general information. It is not medical advice and not a recommendation to use SNAP-8.