Ingredient N° 20
Peptides
Small signaling ingredients with formula-dependent results.
Cosmetic peptides are short amino-acid chains used in formulas aimed at firmness, hydration or barrier support. The category covers many different molecules, so evidence for one peptide cannot automatically be applied to every peptide serum.
Worth knowing
Judge the complete formula rather than the word “peptide” on the label.
Sources checked · 2026-07-18
Good for
DryCombinationSensitiveAll skin types
Targets
Anti-agingDrynessTexture
On the shelves
