Acetyl Tetrapeptide-3
A four-amino-acid peptide often paired with biotin peptides in scalp-density formulas.
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✨ real molecule sketch
Spotted this on a label?
Hair follicle peptide
That’s the INCI name—the official way it appears on the back of your serum or cream. Same ingredient, different marketing names.
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
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
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Educational only—not medical advice. Hair loss has many causes; see a dermatologist or trichologist for persistent thinning.