Hydroquinone

Hydroquinone is a phenolic compound with strong antioxidant and reducing properties. It stabilizes oxidation-sensitive systems, including hair dyes, nail adhesives, and other formulations prone to polymerization or degradation. It donates electrons to reactive species, reduces quinones, and prevents oxidation. Historically used as a skin-lightening agent, Hydroquinone now serves primarily to maintain product stability and extend shelf life.

INCI name

Hydroquinone
Woman applying hydroquinone cream for skin brightening

Benefits & Applications

Physical form at 25°C

  • Powder

Functions

  • Antioxidant / reducing agent
  • Polymerization inhibitor / stabilizer (nail & acrylate systems)
  • Electron donor → inhibits oxidation and melanin

Category

  • Specialty Cosmetic Active
  • Functional Chemical

Applications

  • Hair dyes
  • Nail products / adhesives
  • Rinse-off cosmetics
  • Medical skin-lightening

Regional availability

  • Asia
  • Europe
  • Latin America
  • N America

Consumer benefit

  • Improves stability & shelf-life
  • Controls polymerization
  • Ensures uniform color
  • Reduces degradation/discoloration

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