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ERBIUM CHLORIDE

CAS 10025-75-9,10138-41-7
35

Safety score · 0–100

Caution

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

About

A rare-earth lanthanide salt with no recognised cosmetic function and no safety review. Better avoided in leave-on cosmetics.

Erbium Chloride (ErCl3, CAS 10138-41-7 anhydrous; the hexahydrate is CAS 10025-75-9) is a pink lanthanide salt used in laser/optical materials and as a laboratory reagent. It has no CIR or SCCS opinion supporting cosmetic use, no FDA monograph status, and no recognised functional category in the standard cosmetic literature. Laboratory safety data sheets classify lanthanide chlorides as skin and eye irritants (GHS Cat. 2) and as harmful if swallowed. Lanthanides are persistent in aquatic environments and there is growing concern about anthropogenic gadolinium and related rare-earth releases. Marketing as a "rare-earth skin conditioner" is supplier-driven and unsupported by independent safety or efficacy data. Default position is to avoid in leave-on cosmetics.

Function

SKIN PROTECTING

Skin benefits

  • No demonstrated cosmetic benefit

Known concerns

  • Lanthanide salt with no cosmetic safety review
  • Skin/eye irritant in lab data
  • Environmental persistence concerns
  • No CIR/SCCS opinion

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.