Sodium Hydroxide
NaOHLyeCaustic Soda
pH Adjuster, Surfactant, Preservative
Sodium hydroxide is a strong chemical that can change the pH of a solution. It's often used in soap making and cleaning products, but it can be very harsh and cause burns if not handled carefully.
High Concern
Source: EWG Skin Deep
Sodium hydroxide can cause severe skin and eye irritation, and prolonged exposure can lead to burns and other serious health problems.
Last updated: May 16, 2026