Is Sodium Hydroxide Safe?
Sodium Hydroxide Safety Overview
Official Rating: Mixed (Health Score: 6/10).
pH adjusters (Citric Acid, Sodium Hydroxide, Lactic Acid) are used in trace amounts purely to balance formula pH and do not present safety risks at these levels.
Risk Flags: allergen_potential
How Sodium Hydroxide Is Used Safely
Sodium Hydroxide is formulated as a ph adjuster for ensuring formula matches the skin's natural acidic mantle (pH 4.5-5.5) in all skincare formulations, especially AHA/BHA exfoliants and vitamin C. Used within approved cosmetic concentrations.
Who Should Exercise Caution?
Generally well tolerated for all skin types, crucial for maintaining a healthy acid mantle. If you have reactive or hypersensitive skin, patch test products before full facial application.
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