Peptide
A short chain of amino acids linked by peptide bonds—shorter than a full protein.
What is Peptide?
A short chain of amino acids linked by peptide bonds—shorter than a full protein. In product marketing, “peptide” can mean anything from a dipeptide in eye cream to a 30+ amino acid drug. Chain length and modification (acetyl, palmitoyl) change behavior.
Where you will see Peptide
On product labels, look for the INCI name in the full ingredient list—not just front-of-pack nicknames. Concentration, formula pH, and what else is in the bottle all change how a peptide behaves on skin or hair.
Common questions
What does Peptide mean?
A short chain of amino acids linked by peptide bonds—shorter than a full protein. In product marketing, “peptide” can mean anything from a dipeptide in eye cream to a 30+ amino acid drug. Chain length and modification (acetyl, palmitoyl) change behavior.
Is Peptide an INCI ingredient name?
Sometimes. Brands use nicknames on the front label and INCI names on the back. Search our directory with either form to find the matching peptide page.