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prednylidene

CAS 599-33-7
35

Safety score · 0–100

Caution

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

About

Prednylidene is a cosmetic ingredient. Exercise caution due to limited available safety data.

Prednylidene is a synthetic corticosteroid derivative with glucocorticoid anti-inflammatory and immunosuppressive activity. Topical corticosteroids are regulated as pharmaceutical substances and are not permitted in cosmetic products under EU Cosmetics Regulation 1223/2009. Chronic topical corticosteroid use carries risks of skin atrophy, telangiectasia, and systemic absorption.

Known concerns

  • Corticosteroid pharmacological activity
  • Skin atrophy with chronic use
  • Not permitted in cosmetic products
  • Prescription-only medicine

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.