INCI name
International Nomenclature of Cosmetic Ingredients—the standardized name on the back of cosmetics.
What is INCI name?
International Nomenclature of Cosmetic Ingredients—the standardized name on the back of cosmetics. Regulators and formulators use INCI so “Water (Aqua)” and “Tocopherol” mean the same thing globally. Peptide INCI names often include chain length: Acetyl Hexapeptide-8.
Where you will see INCI name
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 INCI name mean?
International Nomenclature of Cosmetic Ingredients—the standardized name on the back of cosmetics. Regulators and formulators use INCI so “Water (Aqua)” and “Tocopherol” mean the same thing globally. Peptide INCI names often include chain length: Acetyl Hexapeptide-8.
Is INCI name 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.