Hydrogen peroxide is the simplest peroxide with a chemical formula H2O2. Hydrogen peroxide is an unstable compound in the presence of a base or catalyst, and is typically stored with a stabilizer in a weakly acidic solution. If heated to its boiling point, it may undergo potentially explosive thermal decomposition. Hydrogen peroxide is formed in the body of mammals during reduction of oxygen either directly in a two-electron transfer reaction. As a natural product of metabolism, it readily undergoes decomposition by catalase in normal cells. Due to its potent and broad-spectrum antimicrobial actions, hydrogen peroxide is used in both liquid and gas form for preservative, disinfection and sterilization applications as an oxidative biocide. It is used in industrial and cosmetic applications as a bleaching agent. Hydrogen peroxide is also considered as a generally recognized as safe compound by the FDA; it is used as an antimicrobial agent in starch and cheese products, and as an oxidiz
Solubility greater than or equal to 100 mg/mL at 72 °F (NTP, 1992)
Formula
H2O2
Mol. Weight
34.02
CAS #
7722-84-1
Form
Powder
State
Hydrogen peroxide, aqueous solution, stabilized, with more than 60% hydrogen peroxide appears as a colorless liquid. Vapors may irritate the eyes and mucous membranes. Under prolonged exposure to fire
See origin →
Functions
Antimicrobial
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Oral Care
Oxidising
Fights Bacteria
Traditional Use
Discovered in 1818 by Louis-Jacques Thénard. By the late 1800s, it was adopted in beauty treatments for skin lightening and as a mild bleaching agent; later used in skincare for acne-fighting and disinfecting properties.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
EWG
5
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
12.0%
0%17%
Reg. Limit
EU regulatory limit: 12.0%. (a) 12% of H2O2 (40 volumes), present or released (b) 4% of H2O2, present or released (c) 2% of H2O2, present or released (d) ≤ 0,1 % of H 2O 2, present or released e) > 0,1 % ≤ 6 % of H2O2, present or released (f) 2 % of H 2O 2, present or released. For (a) and (f): Wear suitable gloves For (a) (b) (c) and (e): Contains hydrogen peroxide. Avoid contact with eyes. Rinse immediately if product comes into contact with them. (e) Concentration of H 2O... Source: EU Cosmetics Regulation (EC) 1223/2009, Annex III (Restricted Substances), Entry 12.