LITHIUM HYDROXIDE is graded C** (Moderate) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-SAFETY-.

LITHIUM HYDROXIDE

Safety grade: C**

Lithium hydroxide is a chemical compound made from the mineral lithium combined with a hydroxide group. It's a strong alkaline substance used in hair care products to help adjust pH levels and assist in permanently altering hair texture.

This ingredient works as a pH buffer to maintain optimal alkalinity in hair waving and straightening formulations, and it helps break down the protein structure of hair to create permanent waves or straighten curls.

Graded using: COSING.

Last verified: May 26, 2026

Safer alternatives to LITHIUM HYDROXIDE

Other Buffering ingredients