OriginProduced from potassium sulfate and hydrogen peroxide through chemical synthesis and oxidation reactions. Manufactured by combining potassium sulfate with peroxide solutions under controlled industrial conditions.
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.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
Functions
Oxidising
Oxidizing Agent
Antioxidant Protection
Chemical oxidation
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
6
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing / plus 2 case reports (CIR 257)
Skin Irritant in Testing (CIR report on the ingredient group)
CIR report statement covering this group of ingredients / not tested individually (CIR 257)
murphy