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DISODIUM ISOSTEARYL ASCORBYL PHOSPHATE

CAS -
87

Safety score · 0–100

Good

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

About

A stable, oil-soluble vitamin C derivative that delivers antioxidant benefits and skin brightening without the instability of pure ascorbic acid.

Disodium Isostearyl Ascorbyl Phosphate is a phosphate-linked vitamin C (ascorbic acid) derivative where the ascorbyl moiety is esterified to isostearyl alcohol and balanced by sodium cations. The isostearyl group provides oil solubility, making this ingredient suitable for anhydrous or oil-phase cosmetic formulations. Vitamin C phosphate derivatives are well-established cosmetic antioxidants, offering superior stability compared to pure L-ascorbic acid while providing similar skin benefits after enzymatic conversion.

Skin benefits

  • Stable antioxidant protection
  • Skin brightening and pigmentation reduction
  • Collagen synthesis support
  • Oil-soluble for diverse formulations

Known concerns

  • Generally very well tolerated
  • May be less effective than direct vitamin C for some users

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.