Acetyl Tripeptide-30 Citrulline
A synthetic peptide. The maker links it to firmness and skin renewal; independent data are limited. Well tolerated.
Evidence by route
Topical application
A synthetic peptide. 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 Tripeptide-30 Citrulline (INCI Acetyl Tripeptide-30 Citrulline) is a synthetic tripeptide with a citrulline residue and an acetyl protection. It is added to anti-ageing formulas as a signalling ingredient that, by the developer's design, supports firmness and skin renewal. On efficacy, honestly and without overstatement: there is little data, almost all from the raw-material supplier, with few independent clinical studies. This is a supporting ingredient in a formula, not a proven standalone active. It can complement a routine, but it does not replace proven actives such as retinoids or vitamin C. During pregnancy and breastfeeding it can be used. The peptide molecule is large, it does not penetrate the skin systemically when applied topically, and there are no restrictions. Tolerance is good. The irritation potential is low, the allergy risk is low, and the ingredient suits sensitive skin. Peptides of this class behave calmly even on reaction-prone skin.
Frequently asked questions
Is Acetyl Tripeptide-30 Citrulline safe during pregnancy?
Acetyl Tripeptide-30 Citrulline is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Acetyl Tripeptide-30 Citrulline for?
Acetyl Tripeptide-30 Citrulline suits: normal, dry, combination, oily, sensitive.
What is Acetyl Tripeptide-30 Citrulline and what does it do in cosmetics?
A synthetic peptide.
What's the INCI name for Acetyl Tripeptide-30 Citrulline?
The INCI name is Acetyl Tripeptide-30 Citrulline.
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