Tripeptide-3
A synthetic tripeptide. The maker links it to firmness and smoothing; data are limited. Well tolerated.
Evidence by route
Topical application
A synthetic peptide. Well tolerated; data limited.
- CIR Cosmetic Ingredient Review safety assessment
How to read tiers A–F
- BLimited evidence. One RCT or several controlled studies with limitations
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Tripeptide-3 (INCI: Tripeptide-3) is a synthetic three-amino-acid peptide included in anti-aging formulas. The marketing idea is that it acts as a signaling molecule to support firmness and a smoother skin appearance. It is worth being clear here: the evidence is thin. Unlike better-studied peptides, Tripeptide-3 has little published clinical data to back those effects. It is best taken as a supporting ingredient with a modest basis, not an anti-aging active with proven results. Anyone after firmness with solid backing will get more from retinoids or vitamin C. Applied topically it poses no systemic risk, so it can be used during pregnancy and breastfeeding. The described tolerance is good, with low irritation potential and low allergy risk. It suits sensitive skin and has no notable comedogenic profile.
Frequently asked questions
Is Tripeptide-3 safe during pregnancy?
Tripeptide-3 is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Tripeptide-3 for?
Tripeptide-3 suits: normal, dry, combination, oily, sensitive.
What is Tripeptide-3 and what does it do in cosmetics?
A synthetic tripeptide.
What's the INCI name for Tripeptide-3?
The INCI name is Tripeptide-3.
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