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HYDROGEN PEROXIDE

Last update on May 26, 2026

Hydrogen Peroxide is a simple oxidizing agent commonly used in cosmetics for its bleaching, disinfecting, and antimicrobial properties. In low concentrations, it is used for hair bleaching and lightening, while in very low levels it can act as a preservative booster or mild antiseptic. It is a clear, colorless liquid that decomposes into water and oxygen, making it an environmentally friendly option in certain applications.

CAS Number: 7722-84-1Chem/IUPAC Name: Hydrogen peroxideEINECS/ELINCS No: 231-765-0COSING REF No: 34325

Products with HYDROGEN PEROXIDE

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Poly-Pore® 337HP

by Minerals Technologies

INCI: ALLYL METHACRYLATES CROSSPOLYMER | HYDROGEN PEROXIDE | AQUA
  • Sustainable option

What is HYDROGEN PEROXIDE used for?

  • Oxidizing / Bleaching: Lightens hair color by oxidizing melanin. Frequently used in hair bleaching powders, creams, and developers.
  • Antimicrobial: Provides mild disinfection and preservative boosting. Common in some oral care products, wound cleansers, and low-level antiseptic formulations.
  • Stabilizing / Oxygenating: Releases oxygen to support certain formulations. Used in very low concentrations in some skin and hair products.

Origin

Hydrogen Peroxide is produced industrially through the anthraquinone process, involving the hydrogenation and oxidation of 2-ethylanthraquinone. For cosmetic use, it is highly purified and stabilized with additives (such as phosphates or acetanilide) to prevent premature decomposition. It is typically supplied as an aqueous solution in concentrations ranging from 3% to 30% (10-100 volumes).

What does HYDROGEN PEROXIDE do in a formulation?

ANTIMICROBIAL|
OXIDISING|
STABILISING

Safety Profile

Hydrogen Peroxide is considered safe when used at regulated low concentrations. It has a moderate hazard rating from EWG due to its oxidizing nature and potential for skin and eye irritation. The EU limits its concentration in cosmetics (maximum 12% in hair products with warnings). Higher concentrations can cause skin bleaching, irritation, or burns. Not recommended for leave-on products at high levels.

HYDROGEN PEROXIDE alternatives

HYDROGEN PEROXIDE technical profile

PropertyValues
Boiling Point150.2°C
Melting Point-0.43°C
pH3.0 - 6.0
SolubilityFully miscible in water
ViscosityLow