SILICONE QUATERNIUM-26 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SILICONE QUATERNIUM-26

Safety grade: A

This is a silicone-based conditioning agent that has been chemically modified to have positive charges, making it excellent at coating and smoothing hair and skin. It's a synthetic ingredient designed to improve the feel and appearance of cosmetic products.

It works as a conditioning agent that coats hair and skin to reduce frizz, add shine, improve softness, and create a smooth, moisturized feel while also helping products spread more easily.

Graded using: COSING.

Last verified: May 26, 2026