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Pharmaceutical (non-cosmetic)

Thalidomide (INN) and its salts

CAS 50-35-1
0

Safety score · 0–100

Not Rated

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

About

Thalidomide — the notorious teratogen behind one of the worst drug disasters in history. Prohibited in cosmetics under EU Annex II with no permissible use.

Thalidomide (CAS 50-35-1) is an immunomodulatory pharmaceutical best known for causing phocomelia and other severe congenital defects in an estimated 10,000-20,000 children whose mothers took it as a morning-sickness remedy in the late 1950s and early 1960s. Under CLP Regulation (EC) No 1272/2008 it is classified as H360 (may damage fertility or the unborn child) and H302 (harmful if swallowed). It is listed in Annex II of EU Regulation (EC) No 1223/2009 (Cosmetics Regulation), which prohibits its presence in cosmetic products under any circumstances. Medical use today (e.g., multiple myeloma, leprosy reactions) is tightly controlled through risk-evaluation programs like REMS. There is no legitimate cosmetic formulation, concentration, or delivery system for thalidomide.

Skin benefits

  • Has no legitimate role as a cosmetic ingredient

Known concerns

  • Severe teratogen
  • EU Annex II — prohibited
  • GHS H360/H302
  • Cosmetic presence indicates adulteration

References

EU

EU CosIng database

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

Related pharmaceutical (non-cosmetic)s

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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.