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.
- EU COSING — Restricted
Last verified: May 26, 2026
Other Buffering ingredients
- CITRIC ACID — Grade B
- SODIUM HYDROXIDE — Grade B
- LACTIC ACID — Grade B
- SODIUM CITRATE — Grade A
- TRIETHANOLAMINE — Grade C
- SODIUM LACTATE — Grade A
- POTASSIUM HYDROXIDE — Grade B**
- UREA — Grade B