XENOTIME
Thickener
Moderate
CAS Number: 13817-22-6
About XENOTIME
A rare mineral made mostly of yttrium phosphate — used as a binder and skin conditioner. Very uncommon in cosmetics, with virtually no safety data for topical use.
Detailed Analysis
Xenotime (CAS 13817-22-6) is a rare earth phosphate mineral consisting primarily of yttrium phosphate (YPO₄), often containing traces of other rare earth elements (erbium, dysprosium, cerium). Listed in CosIng as a binding and skin conditioning agent. Yttrium compounds generally have low acute toxicity, but there is essentially no published data on the safety of xenotime specifically in cosmetic formulations. The mineral form is insoluble, which limits bioavailability and likely reduces any potential toxicity.
What It Does
Skin Benefits
- ✓ Functions as a binder in formulations
- ✓ Listed as skin conditioning agent
Known Concerns
- ⚠ Virtually no cosmetic safety data available
- ⚠ Contains rare earth elements — long-term topical effects unknown
- ⚠ May contain trace radioactive elements (thorium, uranium) depending on source
Safety Score
Moderate
Based on EU regulatory data, published safety research, and ingredient function analysis.
References
EU CosIng Database
European Commission cosmetic ingredient registry
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Download LuxSenseThis information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.