STRONTIUM HYDROXIDE is graded B (Low Concern) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-CONCENTRATION-.
STRONTIUM HYDROXIDE
Safety grade: B
Strontium hydroxide is a chemical compound made from the mineral strontium that is commonly used to adjust the pH balance of cosmetic products. It helps keep products at the right acidity level so they work effectively and feel comfortable on skin.
This ingredient acts as a pH buffer in cosmetics, neutralizing acids and maintaining a stable pH to ensure the product is safe, effective, and pleasant to use on skin.
Graded using: COSING.
- 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