Acetyl Tetrapeptide-11
A peptide active. The maker links it to firmness and skin renewal; independent data are 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
Acetyl tetrapeptide-11 (INCI: Acetyl Tetrapeptide-11) is a synthetic signaling peptide used in anti-aging cosmetics. The supplier links it to improved firmness and skin renewal, in theory by stimulating cell-adhesion proteins. Honesty is in order here: much of the data come from the supplier, and independent evidence is thin. It is a supporting active with a subtle effect within an anti-aging routine, not an ingredient that will change the skin on its own. Compared with retinoids or vitamin C, its evidence base is smaller. Topically it is not systemically relevant, so it can be used during pregnancy and breastfeeding without concern. Tolerance is high, with low irritation and allergy potential, suitable for sensitive skin.
Frequently asked questions
Is Acetyl Tetrapeptide-11 safe during pregnancy?
Acetyl Tetrapeptide-11 is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Acetyl Tetrapeptide-11 for?
Acetyl Tetrapeptide-11 suits: normal, dry, combination, oily, sensitive.
What is Acetyl Tetrapeptide-11 and what does it do in cosmetics?
A peptide active.
What's the INCI name for Acetyl Tetrapeptide-11?
The INCI name is Acetyl Tetrapeptide-11.
See Acetyl Tetrapeptide-11 in a product composition right on the store page
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