The CIR Expert Panel concluded that Ammonium, Potassium, and Sodium Persulfate are safe as used as oxidizing agents in hair colorants and hair lighteners designed for brief discontinuous use followed by thorough rinsing from the hair and skin. The Panel also concluded that the available data are insufficient for determining the safety of these persulfates in leave-on products and dentifrices.
Solubility 1.75 G IN 100 CC OF WATER @ 0 °C
Formula
K2O8S2
Mol. Weight
270.33
CAS #
7727-21-1
Form
Powder
State
Potassium persulfate appears as a white crystalline solid. Specific gravity 2.477. Decomposes below 100 °C.
Functions
Oxidising
Oxidizing Agent
Antioxidant Protection
Chemical oxidation
Traditional Use
A synthetic oxidizing agent developed in the 19th century for industrial use. Adopted in cosmetics primarily as a bleaching and exfoliating ingredient in hair and nail products.