SNAP-8

updated

SNAP-8 is acetyl octapeptide-3, an eight-amino-acid cosmetic peptide from Lipotec sold in wrinkle creams and serums, and a different molecule from Argireline. It is marketed as topical Botox, said to relax facial muscles and cut wrinkle depth by up to 63%. That figure comes from small manufacturer-sponsored studies, the human studies found used multi-ingredient patches that cannot isolate SNAP-8, and nothing shows it blocks nerve signals to muscle the way injected botulinum toxin does. Graded D because no human trial has tested SNAP-8 alone; sale as a cosmetic ingredient is not drug approval.

acetylated octapeptide

  • Sequence Ac-EEMQRRAD-NH2
  • Different from acetyl hexapeptide-8
  • No exact monotherapy trial found
  • “Topical Botox” is a mechanism analogy, not equivalence

What exactly is SNAP-8?

SNAP-8 is acetyl octapeptide-3 with sequence Ac-Glu-Glu-Met-Gln-Arg-Arg-Ala-Asp-NH2. Acetyl hexapeptide-8, usually called Argireline, is a different molecule despite similar naming and marketing.

source: PubMed/ClinicalTrials.gov · no exact monotherapy trial, PubMed and ClinicalTrials.gov.

source: Argireline mouse study · different peptide, Wang Y et al. Journal of Cosmetic and Laser Therapy, 2013.

Does SNAP-8 reduce wrinkles in people?

The cited human studies used multi-ingredient microneedle patches, so they cannot isolate SNAP-8's contribution. No human trial testing SNAP-8 alone appears in the cited PubMed and ClinicalTrials.gov records.

source: PubMed/ClinicalTrials.gov · no exact monotherapy trial

source: Combination patch · SNAP-8 not isolated, Park JH et al. International Journal of Cosmetic Science, 2019.

source: 24-person split-face study · bundled actives, Cosmetics, 2024; PubMed indexed.

Is it really “topical Botox”?

SNAP-8 is marketed as interfering with a SNAP-25-related protein interaction, but the cited clinical evidence does not show that topical SNAP-8 blocks neuromuscular transmission like injected botulinum toxin.

Botulinum toxin is a potent enzyme delivered by injection to a defined anatomical target. A cosmetic octapeptide placed on intact skin has a different molecule, delivery problem, exposure, and evidence base.

source: PubMed/ClinicalTrials.gov · no exact monotherapy trial

source: Penetration study · Argireline, not SNAP-8, Kraeling MEK et al. Toxicology In Vitro, 2015.

Can Argireline studies be used as SNAP-8 evidence?

Acetyl hexapeptide-8 and acetyl octapeptide-3 are different sequences. Argireline results cannot establish wrinkle reduction or skin penetration for SNAP-8.

source: Argireline mouse study · different peptide

source: Penetration study · Argireline, not SNAP-8

What is known about safety?

The cited studies do not establish side-effect rates for SNAP-8 alone. Irritation, sensitization, eye-area exposure, pregnancy, chronic use, systemic absorption, and the effect of microneedle delivery remain unresolved for exact SNAP-8.

source: PubMed/ClinicalTrials.gov · no exact monotherapy trial

source: Combination patch · SNAP-8 not isolated

source: 24-person split-face study · bundled actives

Is SNAP-8 an approved wrinkle drug?

No FDA-approved SNAP-8 drug or exact registered therapeutic intervention appears in the cited US approval and trial records. Sale as a cosmetic ingredient does not establish drug approval or a Botox-equivalent effect.

source: PubMed/ClinicalTrials.gov · no exact monotherapy trial

Studies and sources

Combination patch · SNAP-8 not isolated

Uncontrolled human formulation study

Park JH et al. International Journal of Cosmetic Science, 2019.

The study evaluated a dissolving microneedle patch containing multiple cosmetic ingredients, including acetyl octapeptide-3. With several actives and no monotherapy comparison, it cannot estimate SNAP-8’s contribution.

Participants / model
Adults receiving a cosmetic microneedle patch
Treatment
Multi-ingredient dissolving microneedle formulation
Study design
Human formulation study

Combination-product evidence only.

Read the original source
24-person split-face study · bundled actives

Split-face human study

Cosmetics, 2024; PubMed indexed.

Twenty-four participants used a microneedle eye patch containing multiple ingredients in a split-face study. Improvements cannot be assigned to acetyl octapeptide-3 because the product bundled several actives and the delivery device itself.

Participants / model
24 adults in a split-face cosmetic study
Treatment
Multi-ingredient microneedle patch
Study design
Small split-face formulation study

Does not isolate SNAP-8.

Read the original source
Argireline mouse study · different peptide

Adjacent-molecule animal study

Wang Y et al. Journal of Cosmetic and Laser Therapy, 2013.

This study applied acetyl hexapeptide-8, commonly called Argireline, to D-galactose-aged mice twice daily for 6 weeks and measured skin histology and collagen fibers, not wrinkles in people. It is often cited near SNAP-8 but has a different sequence and cannot establish SNAP-8 efficacy.

Participants / model
D-galactose-aged mice
Treatment
Topical acetyl hexapeptide-8
Follow-up
6 weeks
Study design
Mouse skin-histology study of a different peptide

This study tested Argireline in mice, not SNAP-8 in people.

Read the original source
Penetration study · Argireline, not SNAP-8

Adjacent-molecule formulation study

Kraeling MEK et al. Toxicology In Vitro, 2015.

The study examined penetration of acetyl hexapeptide-8 through human skin in vitro. It does not test acetyl octapeptide-3, and it reinforces that a large cosmetic peptide’s presence on skin does not prove delivery to a neuromuscular target.

Study design
In vitro human-skin penetration study of a different peptide
Read the original source

Why is SNAP-8 in D tier?

D tier reflects that no human trial testing SNAP-8 alone appears in the cited PubMed and ClinicalTrials.gov records. Combination-patch studies cannot establish how much wrinkle reduction comes from this ingredient.

how tiers are graded: methodology · every cited source · about reptides.

Research reference, not medical advice. Entries distinguish product labels, study doses and reported protocols. Check the linked source for the product, route and population.