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Skin Conditioning

1,3-Dihydroxy-2-propanone

CAS 96-26-4
70

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

DHA — the active in self-tanners. It reacts with surface skin proteins to brown them. Topical use is well-tolerated; main caution is avoiding inhalation during spray tanning.

Skin benefits

  • Self-tanning active (Maillard reaction with skin keratin)
  • Non-UV-based tan
  • Approved cosmetic ingredient worldwide

Known concerns

  • Generates free radicals on skin during browning
  • Avoid inhalation in spray tans
  • Tan only — no UV protection
  • Possible mild irritation

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.