Myristoyl nonapeptide-3 is a lipidated nine-amino-acid peptide engineered for stability and skin affinity in cosmetic products, included to improve a refined, even-looking texture and tone in leave-on formulas, with limited independent data.
Not typically evaluated for comedogenicity — no standardized rating available.
Our take
Is Myristoyl Nonapeptide-3 a Good Ingredient?
It's positioned for texture refinement, yet independent clinical support is sparse, so the benefits are uncertain, which is why it rates Fair. Some users may experience mild sensitivity to the peptide or its lipidation.
What it does
Skin Benefits
May visibly soften the look of rough patches and uneven texture, though independent support is limited; aims to give skin a more polished appearance over time.
Where you'll find it
Uses in Skincare & Cosmetics
Formulated into anti-aging serums, moisturizers, and leave-on treatments; sometimes found in sheet masks for targeted application.
Before you use it
Safety
Generally low irritation potential, but transient redness or tingling can occur in sensitive individuals. No specific regulatory limitations commonly cited for standard cosmetic use; consider patch testing.