GLP-1
Glucagon-like peptide-1—a gut hormone mimicked by drugs like semaglutide.
What is GLP-1?
Glucagon-like peptide-1—a gut hormone mimicked by drugs like semaglutide. GLP-1 agonist drugs are peptides, but they are prescription medicines—not cosmetic ingredients.
Where you will see GLP-1
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 GLP-1 mean?
Glucagon-like peptide-1—a gut hormone mimicked by drugs like semaglutide. GLP-1 agonist drugs are peptides, but they are prescription medicines—not cosmetic ingredients.
Is GLP-1 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.