Acetyl Tetrapeptide-3
A four-amino-acid peptide often paired with biotin peptides in scalp-density formulas.
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✨ real molecule sketch
See this on a product label?
Hair follicle peptide
Hair and lash products use INCI names too—often longer chemical names beside marketing names like Capixyl.
Structure (cute edition)
✨ real molecule sketch
This peptide is a short chain of about 4 amino acids—think of it as a tiny protein necklace on your label.
INCI: Hair follicle peptide · ~4 amino acids in our simplified view
Research & public records
Counts and links from public databases (PubMed, ClinicalTrials.gov, Wikidata, NIH drug nomenclature). Educational only — not medical advice.
Knowledge base: chemical compound
PubMed: 1 indexed papers (search PubMed)
- An Herbal Extract Combination (Biochanin A, Acetyl tetrapeptide-3, and Ginseng Extracts) versus 3% Minoxidil Solution for the Treatment of Androgenetic Alopecia: A 24-week, Prospective, Randomized, Triple-blind, Controlled Trial. · The Journal of clinical and aesthetic dermatology
Clinical trials: 34 studies on ClinicalTrials.gov (view search)
- Evaluation of Microbiota Transplant Therapy in Patients With Alopecia Areata · RECRUITING
- A Clincial Study Testing Tirzepatide on Reproductive Function and Metabolic Health in Women With PCOS Who Are Overweight or Obese · RECRUITING
- Abatacept Costimulatory Blockade in the Treatment of Alopecia Totalis/Universalis · WITHDRAWN
- French Registry of Children Treated With Norditropin® for Short Stature Associated With Noonan Syndrome · ENROLLING_BY_INVITATION
- A Trial To Assess Safety And Tolerability Of PF-04691502 In Cancer Patients · COMPLETED
- Immunogenicity of Three HIV GTU® MultiHIV DNA Immunisations Administered Via Intramuscular, Intradermal and Transcutaneous Routes · UNKNOWN
- Effect of Liraglutide for Weight Management in Pubertal Adolescent Subjects With Obesity · COMPLETED
- Evaluation of the Efficacy and Tolerability of Treatment With Interleukin-2 in Severe and Resistant Alopecia Areata · TERMINATED
ChEMBL: AKBA · max phase -1.0
What brands say it does
Acetyl Tetrapeptide-3 appears in EU cosmetic databases with hair-conditioning functions. Suppliers claim it supports dermal papilla cells—the part of the follicle that signals growth. Usually one piece of a multi-ingredient complex.
Where you’ll find it
Scalp serums listing Capixyl, standalone peptide hair drops, and fortifying shampoos.
Other names you might see
Capixyl component
Hair follicle peptide
Compare with similar peptides
Similar peptides
Educational only—not medical advice. Hair loss has many causes; see a dermatologist or trichologist for persistent thinning.