Safety Assessment of Ammonia and Ammonium Hydroxide as Used in Cosmetics

What was studied

Panel judged safe as used in hair dyes/colors and described direct-skin cosmetics when formulated to be non-irritating. Both equilibrate in water. Ammonium-ion, diammonium-phosphate and ammonium-salt read-across disclosed. Irritation/corrosion hazards and minimized hair-dye skin contact matter; occupational safety excluded.

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