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Peptide

What Peptide is & what it does

Peptide is a general term for short chains of amino acids, the building blocks of proteins, used widely in skincare. Depending on the specific peptide, formulators include them as conditioning or signaling agents intended to support the look of firmness, smoothness and hydration. Because "Peptide" is a broad label rather than a single molecule, the exact role depends on the particular peptide used. Peptides are generally well tolerated in cosmetic use.

What is a peptide in skincare?

A peptide is a short chain of amino acids, which are the building blocks of proteins. "Peptide" is a general label, so the exact molecule and its purpose depend on the specific peptide a brand has chosen.

What do peptides do in skincare?

Depending on the type, peptides are used as conditioning or signaling agents intended to support the look of firmness, smoothness and hydration. They are popular in serums and moisturizers aimed at the appearance of aging skin.

Are peptides safe?

Peptides are generally well tolerated in cosmetic use and have no concerns flagged here. Because results and tolerance vary by the specific peptide, checking the full ingredient list of a product is helpful.

Sunscreens with Peptide

We rate 5 sunscreens that contain it:

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