SNAP-8

SNAP-8 is acetyl octapeptide-3, a cosmetic peptide marketed for wrinkles. The cited human studies used multi-ingredient patches, so they could not isolate its contribution.

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.

PubMed/ClinicalTrials.gov · no exact monotherapy trial

Human clinical evidence

PubMed and ClinicalTrials.gov.

No human trial testing SNAP-8 alone appears in the cited PubMed and ClinicalTrials.gov records. The cited human studies use multi-ingredient topical products, so they cannot isolate SNAP-8’s effect.

Read the original source

Argireline study · different peptide

Adjacent-molecule human trial

Wang Y et al. International Journal of Cosmetic Science, 2013.

This human wrinkle study tested acetyl hexapeptide-8, commonly called Argireline. It is often cited near SNAP-8 but has a different sequence and cannot establish SNAP-8 efficacy.

Treatment: Topical acetyl hexapeptide-8
Study design: Human cosmetic trial of a different peptide

This study tested Argireline, not SNAP-8.

Read the original source

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.

PubMed/ClinicalTrials.gov · no exact monotherapy trial

Human clinical evidence

PubMed and ClinicalTrials.gov.

No human trial testing SNAP-8 alone appears in the cited PubMed and ClinicalTrials.gov records. The cited human studies use multi-ingredient topical products, so they cannot isolate SNAP-8’s effect.

Read the original source

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

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.

PubMed/ClinicalTrials.gov · no exact monotherapy trial

Human clinical evidence

PubMed and ClinicalTrials.gov.

No human trial testing SNAP-8 alone appears in the cited PubMed and ClinicalTrials.gov records. The cited human studies use multi-ingredient topical products, so they cannot isolate SNAP-8’s effect.

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

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.

Argireline study · different peptide

Adjacent-molecule human trial

Wang Y et al. International Journal of Cosmetic Science, 2013.

This human wrinkle study tested acetyl hexapeptide-8, commonly called Argireline. It is often cited near SNAP-8 but has a different sequence and cannot establish SNAP-8 efficacy.

Treatment: Topical acetyl hexapeptide-8
Study design: Human cosmetic trial of a different peptide

This study tested Argireline, not SNAP-8.

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

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.

PubMed/ClinicalTrials.gov · no exact monotherapy trial

Human clinical evidence

PubMed and ClinicalTrials.gov.

No human trial testing SNAP-8 alone appears in the cited PubMed and ClinicalTrials.gov records. The cited human studies use multi-ingredient topical products, so they cannot isolate SNAP-8’s effect.

Read the original source

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

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.

PubMed/ClinicalTrials.gov · no exact monotherapy trial

Human clinical evidence

PubMed and ClinicalTrials.gov.

No human trial testing SNAP-8 alone appears in the cited PubMed and ClinicalTrials.gov records. The cited human studies use multi-ingredient topical products, so they cannot isolate SNAP-8’s effect.

Read the original source

Studies and sources

PubMed/ClinicalTrials.gov · no exact monotherapy trial

Human clinical evidence

PubMed and ClinicalTrials.gov.

No human trial testing SNAP-8 alone appears in the cited PubMed and ClinicalTrials.gov records. The cited human studies use multi-ingredient topical products, so they cannot isolate SNAP-8’s effect.

Read the original source

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 study · different peptide

Adjacent-molecule human trial

Wang Y et al. International Journal of Cosmetic Science, 2013.

This human wrinkle study tested acetyl hexapeptide-8, commonly called Argireline. It is often cited near SNAP-8 but has a different sequence and cannot establish SNAP-8 efficacy.

Treatment: Topical acetyl hexapeptide-8
Study design: Human cosmetic trial of a different peptide

This study tested Argireline, not SNAP-8.

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.