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Antioxidant

ASCORBYL ISOSTEARATE

Updated
80

Safety score · 0–100

Good

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

About

A lipid-soluble vitamin C derivative — ascorbic acid esterified with isostearic acid. Acts as a more stable, oil-phase antioxidant; low irritation and good formulation compatibility, though clinical data is thinner than for ascorbyl palmitate.

Function

SKIN CONDITIONING

Skin benefits

  • Oil-soluble antioxidant
  • Skin conditioning
  • Vitamin C delivery

Known concerns

  • Variable bioconversion
  • Sparse dedicated clinical data

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 — always read the physical product label and consult a healthcare professional for personal concerns.