Last verified: 17 days ago
Oligopeptide-2
Also known as: Acetyl Tetrapeptide-3, hair growth peptide, biotinoyl tripeptide analog
Evidence under review. — Not yet rated
Synthetic peptide used in hair and skin products. No published clinical trial data available.
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What it does
Oligopeptide-2 is a small synthetic protein fragment used primarily in cosmetic formulations targeting hair loss and scalp health. It is marketed as a signal molecule that may stimulate hair...
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Evidence quality
Evidence base hasn't been formally rated yet. See research below.
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Clinical dose
No established dose
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Found in
What the Science Says
Oligopeptide-2 is a small synthetic protein fragment used primarily in cosmetic formulations targeting hair loss and scalp health. It is marketed as a signal molecule that may stimulate hair follicle activity and promote growth factors involved in hair cycling. No peer-reviewed clinical trials are indexed in PubMed, so its effectiveness in humans is unconfirmed by independent research.
What It Doesn't Do
No proven ability to regrow hair in clinical studies. Not a replacement for FDA-approved hair loss treatments like minoxidil or finasteride. No evidence it works when taken orally as a supplement. Marketing claims about 'activating stem cells' are not backed by published human data.
Absorption & Bioavailability
Unknown — no published absorption or pharmacokinetic data available for this ingredient
Red Flags to Watch For
- Zero indexed clinical trials in PubMed — all efficacy claims are manufacturer-driven, not independently verified
- Commonly found in expensive cosmetic serums with no dose transparency or standardization
- Peptides applied topically may not penetrate the skin barrier effectively, making delivery claims questionable
- No regulatory approval as a drug or therapeutic agent — sold only as a cosmetic ingredient
Products Containing Oligopeptide-2
See how Oligopeptide-2 is used in these analyzed products:
Frequently Asked Questions
What does Oligopeptide-2 do?
Synthetic peptide used in hair and skin products. No published clinical trial data available.
What is the effective dose of Oligopeptide-2?
No established dose
Is Oligopeptide-2 safe?
Zero indexed clinical trials in PubMed — all efficacy claims are manufacturer-driven, not independently verified
What doesn't Oligopeptide-2 do?
No proven ability to regrow hair in clinical studies.
Research Sources
- General knowledge — no PubMed papers were available for this ingredient. Limited published research available.
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25