A synthetic peptide. Makers link it to support for skin renewal and firmness; independent evidence is still limited. Well tolerated.
Topical application
BLimited evidence. One RCT or several controlled studies with limitations.
A peptide active. Well tolerated; independent data limited.
Caprooyl Tetrapeptide-3 is a synthetic signal peptide linked to a fatty acid for better penetration. INCI: Caprooyl Tetrapeptide-3. In a formula it works as an active with a claimed firming and anti-aging action: it is linked to support of dermal-matrix synthesis and skin firmness. Signal peptides are a promising class, but the evidence base for specific molecules is mostly from manufacturer studies, and the effect is mild and needs time. It is a supporting active. Pregnancy safety. Topical use, low systemic absorption, no evidence of harm. It can be used during pregnancy and lactation. Tolerance. Irritation and allergen potential are low.
Irritation potential
LowAllergen risk
LowPregnancy
SafeSuitable for
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Caprooyl Tetrapeptide-3 is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Caprooyl Tetrapeptide-3 suits: normal, dry, combination, oily, sensitive.
A synthetic peptide.
The INCI name is Caprooyl Tetrapeptide-3. It may also appear as: Капроил тетрапептид-3.
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