Skin Conditioning

Acetyl Tripeptide-45 D-Phenylalanyl Octapeptide-14 Norleucyl Pentapeptide-38 Methyl Leucyl Decapeptide-26 Norleucyl Glutamyl Methyl Leucyl Isoleucinamide

INCI: ACETYL TRIPEPTIDE-45 D-PHENYLALANYL OCTAPEPTIDE-14 NORLEUCYL PENTAPEPTIDE-38 METHYL LEUCYL DECAPEPTIDE-26 NORLEUCYL GLUTAMYL METHYL LEUCYL ISOLEUCINAMIDE

Reviewed by Rosie · Last updated 18 Aug 2026

What Is Acetyl Tripeptide-45 D-Phenylalanyl Octapeptide-14 Norleucyl Pentapeptide-38 Methyl Leucyl Decapeptide-26 Norleucyl Glutamyl Methyl Leucyl Isoleucinamide?

Acetyl Tripeptide-45 D-Phenylalanyl Octapeptide-14 Norleucyl Pentapeptide-38 Methyl Leucyl Decapeptide-26 Norleucyl Glutamyl Methyl Leucyl Isoleucinamide is the reaction product of isoleucine with an acetylated peptide containing a lactam bridge and consisting of Tripeptide-45 (q.v.), D-phenylalanine, Octapeptide-14 (q.v.), norleucine, Pentapeptide-38 (q.v.) methyl leucine, Decapeptide-26 (q.v.) and glutamine.

Its declared cosmetic function is hair conditioning.

Source: European Commission CosIng inventory.

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