RH-OLIGOPEPTIDE-4 is graded F (Banned) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexII.
RH-OLIGOPEPTIDE-4
Safety grade: F
This is a small chain of amino acids (the building blocks of proteins) created in a laboratory. It's designed to help improve skin's texture and appearance by supporting the skin's natural structure.
This ingredient conditions and softens the skin by helping to maintain its moisture and improve overall skin feel and smoothness.
Graded using: COSING.
- EU COSING — Prohibited
Last verified: May 26, 2026
Other EU Prohibited (Annex II) ingredients
- BUTYLPHENYL METHYLPROPIONAL — Grade F**
- PETROLATUM — Grade F
- ZINC PYRITHIONE — Grade F**
- CYCLOMETHICONE — Grade F**
- HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE — Grade F
- CI 73360 — Grade F
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