Sodium Hydroxide

Primary Function

pH Adjuster

Safety Verdict

Mixed

Health Score

6/10

Eco Score

3/10

Also Known As

caustic soda

About Sodium Hydroxide

Sodium Hydroxide is used in very small amounts to adjust pH. Can be irritating in high concentrations.

Formulation Role & Skin Benefits

Sodium Hydroxide is selected for formulations requiring ensuring formula matches the skin's natural acidic mantle (pH 4.5-5.5), delivering optimizing active ingredient efficacy while minimizing skin irritation.

Best suited for all skin types, crucial for maintaining a healthy acid mantle. Typical formulation context: all skincare formulations, especially AHA/BHA exfoliants and vitamin C.