DIPEPTIDE-15 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
DIPEPTIDE-15
Safety grade: A
Dipeptide-15 is a small protein fragment made up of two amino acids linked together. It works like a moisturizer and strengthener for both hair and skin by helping them retain water and stay soft.
This ingredient conditions and hydrates hair and skin by forming a protective layer that locks in moisture and improves softness and smoothness.
Graded using: COSING.
Last verified: May 26, 2026
Other Skin Conditioning ingredients
- TOCOPHEROL — Grade A
- PROPYLENE GLYCOL — Grade A**
- XANTHAN GUM — Grade A
- DIMETHICONE — Grade A
- TOCOPHERYL ACETATE — Grade A
- PANTHENOL — Grade A
- CAPRYLYL GLYCOL — Grade A
- ETHYLHEXYLGLYCERIN — Grade A