Potassium Hydroxide (KOH), also known as Caustic Potash, which is a strong alkali. Potassium Hydroxide forms a great soap base for the production of natural hot process liquid soap. Our Potassium Hydroxide comes in a safe container fitted with a resealable cap.

A basic soap recipe just needs a few essential ingredients: Water, vegetable fat, essential oils for fragrance, and Potassium Hydroxide. However, you may want to consider an additional list of ingredients such as coconut oil and shea butter that are beneficial to the skin. Potassium Hydroxide solution, when mixed with fats and oils, will cause a chemical reaction called saponification. The result of saponification is beautiful natural handmade soap.

This alkali makes a liquid soap, not solid bar soap. We recommend the use of a online Calculator to ensure you have a balanced and moisturising recipe. Try the online Soapmaking Friend calculator, you'll find it very helpful (https://www.soapmakingfriend.com/soap-making-recipe-builder-lye-calculator).

Due to its dangerous goods classification, we only ship Potassium Hydroxide within Hong Kong.

Always add Potassium Hydroxide to the water, and NOT the water to Potassium Hydroxide. An unpleasant, violent reaction occurs if you do.