Snapshot
- Overview
- A peptide that supports firmer, smoother-looking skin over time.
- Category
- Anti-aging, Firming, Tone/Texture
- Type
- Peptide
Arginine/Lysine Polypeptide
This lab-created polypeptide is built from arginine and lysine amino acid residues. Leave-on skincare uses it to support a firmer, smoother feel and boost surface texture, though peer-reviewed evidence is moderate and outcomes vary with formula and routine.
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Our take
Is Arginine/Lysine Polypeptide a Good Ingredient?
That puts it at Fair: proposed to promote a firmer, smoother look, but clinical backing is limited and effects can be subtle. Mild irritation or sensitization may occur, particularly near the eye area.
What it does
Skin Benefits
Supports a springier feel and a more refined surface appearance. Visible effects are often subtle and require consistent use.
Where you'll find it
Uses in Skincare & Cosmetics
Common in firming serums, eye creams, and leave-on treatments, and sometimes incorporated into sheet masks for a quick boost.
Before you use it
Safety
Generally low risk, though peptides can occasionally trigger mild irritation or redness; patch testing is prudent for sensitive skin. Avoid getting product into the eyes and discontinue if irritation persists.
Products with Arginine/Lysine Polypeptide
