Caprooyl Tetrapeptide-3
A synthetic peptide. Makers link it to support for skin renewal and firmness; independent evidence is still limited. Well tolerated.
Evidence by route
Topical application
A peptide active. Well tolerated; independent 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
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.
Frequently asked questions
Is Caprooyl Tetrapeptide-3 safe during pregnancy?
Caprooyl Tetrapeptide-3 is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Caprooyl Tetrapeptide-3 for?
Caprooyl Tetrapeptide-3 suits: normal, dry, combination, oily, sensitive.
What is Caprooyl Tetrapeptide-3 and what does it do in cosmetics?
A synthetic peptide.
What's the INCI name for Caprooyl Tetrapeptide-3?
The INCI name is Caprooyl Tetrapeptide-3.
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