Peptide Graded

Acetyl hexapeptide-8

Does Acetyl hexapeptide-8 work?

Partly: some human trials, with gaps. One trial of 60 adults helped; one of 19 women did not.

BSome human evidenceCosmetic ingredientas of 2026-10-26

For wrinkle reduction there is one randomized placebo-controlled trial in 60 Chinese adults showing a benefit, a 19-person split-face double-blind study showing none, a 26-patient uncontrolled series and the manufacturer's original volunteer study. Skin penetration work in human and animal skin finds very little of the peptide reaches the dermis, which leaves the mechanism in doubt. Small samples and conflicting results keep this at B. 78101214

The strongest trial randomized 60 Chinese adults 3:1 to Argireline or placebo. They applied it to crow's feet twice daily for four weeks. Subjective anti-wrinkle benefit was 48.9% in the Argireline group and 0% with placebo. Silicone-replica measurements of skin roughness fell significantly only in the treated group. 7

A 2023 double-blind split-face study in 19 women compared a hyaluronic acid serum with and without Argireline for four weeks. Researchers scored the skin with a Visia camera system. Wrinkle scores fell slightly on both sides. Neither the change within each side nor the difference between sides was statistically significant. 8

Evidence checklist

  • Randomised controlled trial One RCT, 60 adults; a 19-person study found none
  • Human study over 100 people Largest human study is 60 people
  • More than one research group Mixed results; trials from the maker and small groups
  • Clinical outcomes, not surrogate markers Wrinkle appearance only, not a clinical outcome
  • Human safety data beyond case reports No irritation in small studies; 2025 CIR safety review

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More on Acetyl hexapeptide-8

Citations

  1. Am J Clin Dermatol 2013: Argireline mechanism via SNAP-25 (DOI) doi.org
  2. PMC 2025 review: cosmetic peptides and the efficacy debate pmc.ncbi.nlm.nih.gov
  3. FDA: how cosmetics are regulated but not approved fda.gov
  4. FDA: is it a cosmetic, a drug, or both? fda.gov
  5. Cosmetic Ingredient Review: acetyl hexapeptide-8 safety review (technical report) cir-safety.org
  6. DailyMed: botulinum toxin label, SNAP-25 cleavage mechanism dailymed.nlm.nih.gov
  7. Wang 2013, Am J Clin Dermatol: randomized placebo-controlled trial of Argireline in Chinese subjects pubmed.ncbi.nlm.nih.gov
  8. GMS Interdiscip Plast Reconstr Surg 2023: Argireline in a hyaluronic acid serum, Visia analysis pubmed.ncbi.nlm.nih.gov
  9. Scientific Reports 2018: skin permeation of modified anti-wrinkle peptides pubmed.ncbi.nlm.nih.gov
  10. Kraeling 2015, Cutan Ocul Toxicol: in vitro skin penetration of acetyl hexapeptide-8 pubmed.ncbi.nlm.nih.gov
  11. Int J Toxicol 2025: CIR safety assessment of acetyl hexapeptide-8 amide pubmed.ncbi.nlm.nih.gov
  12. Blanes-Mira 2002, Int J Cosmet Sci: a synthetic hexapeptide with antiwrinkle activity pubmed.ncbi.nlm.nih.gov
  13. Chem Biodivers 2021: Argireline detection and oxidation in cosmetics pubmed.ncbi.nlm.nih.gov
  14. Clin Ter 2020: acetyl hexapeptide-8 for scar and wrinkle camouflage, 26-patient series pubmed.ncbi.nlm.nih.gov
  15. Microbiol Spectr 2022: pentapeptide-4 (Matrixyl) conjugates pubmed.ncbi.nlm.nih.gov
  16. Robinson 2005, Int J Cosmet Sci: palmitoyl pentapeptide in photoaged skin pubmed.ncbi.nlm.nih.gov
  17. Eur J Pharm Sci 2015: delivery of acetyl hexapeptide-8 from different emulsions pubmed.ncbi.nlm.nih.gov

Reference information only, not medical advice. Drawn from the Acetyl hexapeptide-8 article, fact-checked against the cited sources. No dosing anywhere on this site.