LabelWise

Ammonium Hydroxide

NH4OHAqua Ammonia

pH Adjuster, Preservative

Ammonium hydroxide is a liquid solution that helps adjust the pH level of products and prevent the growth of bacteria and mold. It's often used in personal care products like shampoos and conditioners.

Moderate Concern

Source: EWG Skin Deep

The concern with ammonium hydroxide is that it can cause skin irritation and eye damage, especially if used in high concentrations or on sensitive skin.

Last updated: May 16, 2026