Peptide Academy ยท Cosmetic

Acetyl Tetrapeptide-3

Also known as Capixyl component

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Educational research summary, not medical advice. Many compounds here are not approved for human use. Talk to a licensed clinician before making any health decision.

The Peptide Academy is free to read. Members also get the research protocols for Acetyl Tetrapeptide-3, dose and vial tracking, and an AI Advisor with cited sources. Try it all free for 7 days, no card needed.

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What is Acetyl Tetrapeptide-3?

A hair-anchoring peptide used in topical anti-hair-loss formulations.

How it works

Stimulates laminin-5 and collagen VII synthesis at the dermal papilla, strengthening follicle anchoring.

Published research

  • Industry studies (as Capixyl with red clover extract) report reduced hair fall

Cautions

Cosmetic-grade evidence.

Side effects & fixes

Common side effects

  • โ€”Redness, tingling or dryness where applied
  • โ€”Breakouts in sensitive skin

Histamine reactions

Itching or a rash can occur in sensitive skin.

Common fixes

  • Patch-test on your inner arm for 24 hours before first use.
  • Apply every other day at first and use a plain moisturizer.
  • Avoid combining with strong acids or retinoids until your skin adjusts.

Stop and get help

  • Blistering, swelling, or a rash that keeps spreading.
  • Stop and get emergency help for swelling of the face, lips, tongue or throat, trouble breathing, widespread hives, chest pain or fainting.

Basis: Cosmetic-ingredient safety assessments. Educational only, not medical advice.

Medication concerns

Theoretical: no human interaction studies
  • Prescription retinoids (tretinoin), acids and benzoyl peroxide

    Applied on the skin, these peptides have no meaningful medication interactions; layering with strong actives can raise irritation.

Basis: Topical cosmetic peptides with minimal absorption into the body. Educational only, not medical advice. Never stop or change a prescribed medicine without your prescriber.

Protocols & tracking are members-only

Members see the research protocols for Acetyl Tetrapeptide-3, plan schedules, track every dose and vial, and ask the AI Advisor questions with cited sources. Try every Researcher feature free for 7 days, no card needed.

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