S-HIV-1 OLIGOPEPTIDE-4 S-COW OLIGOPEPTIDE-2 SP is graded A (Safe) by Expert·ING, based on COSING regulatory data.

S-HIV-1 OLIGOPEPTIDE-4 S-COW OLIGOPEPTIDE-2 SP

Safety grade: A

This ingredient combines protein fragments derived from natural sources to help support skin's natural barrier function. It works to improve skin texture and maintain moisture levels, making it useful in serums, creams, and other skincare products designed to enhance overall skin health and appearance.

Graded using: COSING.

Last verified: June 9, 2026