POTASSIUM HYDROXIDE is graded B** (Low Concern) by Expert·ING, based on COSING, FDA regulatory data. It is restricted under EU COSING — AnnexIII-CONCENTRATION-.
POTASSIUM HYDROXIDE
Safety grade: B**
A strong alkaline substance that helps balance the pH level of cosmetic products. It's commonly used to neutralize acidic ingredients and keep formulations stable.
This ingredient acts as a pH buffer, neutralizing excess acidity in cosmetic formulas to maintain the proper pH balance for safety and effectiveness on skin.
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
- UREA — Grade B
- SODIUM BICARBONATE — Grade A