(3R)-beta-4-Caroten-3-ol

88

Good

CAS Number: 3763-55-1

About (3R)-beta-4-Caroten-3-ol

A vitamin A-derived carotenoid with antioxidant and potential skin-repair properties, generally safe for cosmetic use at low concentrations.

Detailed Analysis

(3R)-beta-4-Caroten-3-ol (also called astaxanthin when esterified or related to beta-carotene) is a carotenoid pigment derived from vitamin A metabolism. Carotenoids are potent antioxidants that scavenge free radicals and reduce oxidative stress in skin. The specific (3R) stereochemistry indicates a natural isomer. Topical application of carotenoids can provide photoprotective benefits and support skin barrier function. No EU restrictions apply to this class of compounds, and they are considered safe for cosmetic use within reasonable concentrations.

Skin Benefits

  • ✓ Potent antioxidant
  • ✓ Photoprotective potential
  • ✓ Skin barrier support
  • ✓ Anti-inflammatory properties

Known Concerns

  • ⚠ Generally very safe
  • ⚠ May color skin at high concentrations (orange-red)
  • ⚠ Vitamin A activity at high doses warrants caution in pregnancy

Safety Score

88

Good

Based on EU regulatory data, published safety research, and ingredient function analysis.

References

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EU CosIng Database

European Commission cosmetic ingredient registry

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This information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.