CALCIUM HYDROXIDE is graded B** (Low Concern) by Expert·ING, based on COSING, FDA regulatory data. It is restricted under EU COSING — AnnexIII-CONCENTRATION-.

CALCIUM HYDROXIDE

Slaked Lime

Safety grade: B**

Calcium hydroxide is a white powder made by combining calcium oxide (quicklime) with water. It's a basic alkaline substance commonly used in construction and food processing.

This ingredient works as a pH buffer in cosmetic products, helping to neutralize acids and maintain a stable, skin-safe pH level.

Graded using: COSING, FDA.

Last verified: May 26, 2026

Other Buffering ingredients