Direct Answer
Acetyl octapeptide-3 (SNAP-8) is a synthetic peptide marketed for the appearance of expression lines. Cited human evidence comes from dissolving microneedle patches containing multiple actives, so effects cannot be attributed to acetyl octapeptide-3 or to conventional topical application alone.
Summary Table
Evidence Level
High
Key Information
Classification
Key Takeaways
- Acetyl octapeptide-3 (SNAP-8) is a cosmetic peptide marketed for expression-line appearance
- Cited human evidence is from multi-active microneedle patches
- Effects cannot be attributed to SNAP-8 or to conventional topical use alone
Scientific Overview
In Plain English
Acetyl octapeptide-3, known as SNAP-8, is a peptide used in anti-aging cosmetics for the look of expression lines. The human studies that reported smoother-looking skin used microneedle patches containing several active ingredients, so the benefit cannot be credited to SNAP-8 by itself.
Scientific Details
Acetyl octapeptide-3 (SNAP-8) is an acetylated octapeptide. Two human studies of dissolving hyaluronic-acid microneedle patches that included acetyl octapeptide-3 among multiple actives reported improvements in the appearance of wrinkles, skin elasticity, and hydration, with good tolerability. Because the patches delivered several actives via microneedles, effects cannot be attributed to acetyl octapeptide-3 or to conventional topical application alone.
How It Works
Acetyl octapeptide-3 is marketed in relation to the appearance of expression lines; cited human improvements used microneedle patches with multiple actives, not conventional topical application of the peptide alone.
Mechanism of Action
Expression-line appearance (formulation-level)
human
Cited human studies evaluated microneedle patches containing acetyl octapeptide-3 with other actives; the individual peptide effect was not isolated.
Evidence Level
Human Evidence
Two human studies of multi-active microneedle patches that included acetyl octapeptide-3 reported improvements in wrinkle appearance, elasticity, and hydration.
Limitations
Evidence is from multi-active microneedle patches; effects cannot be attributed to acetyl octapeptide-3 or to conventional topical use alone. Both cited studies are manufacturer-funded (Raphas; Imperial Bioscience).
References
- Clinical Safety and Efficacy Evaluation of a Dissolving Microneedle Patch Having Dual Anti-Wrinkle Effects. Annals of Dermatology.Human Studydoi:10.5021/ad.23.136 →
- Efficacy of bioactive peptides loaded on hyaluronic acid microneedle patches: A monocentric clinical study. Journal of Cosmetic Dermatology.Human Studydoi:10.1111/jocd.13009 →
Alternative Names
- SNAP-8
- octapeptide-3
Claim Boundaries
ION BLUE is an educational research aggregator. This content summarizes published scientific literature. It is not medically reviewed, is not medical advice, and is not a recommendation to use any substance. Several peptides discussed are research chemicals not approved for human use. Consult a licensed healthcare provider. Cited evidence used multi-active microneedle patches; this entry does not attribute effects to the peptide or to topical use alone and is not a recommendation to use it.
This page summarizes published research and is for informational purposes only; it is not medical advice.