Colorant
CUPROUS OXIDE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A copper(I) oxide pigment giving red-copper hues. Generally safe at cosmetic-grade purity but copper content carries contact sensitization risk and environmental concerns for rinse-off products.
Function
Skin benefits
- Provides red-copper coloration in specialty cosmetics
- Inorganic pigment with stable color properties
- Class of materials with established biocidal copper chemistry
Known concerns
- Copper-based — potential contact sensitization
- Higher acute toxicity than copper(II) compounds
- Environmental concerns for aquatic life from copper(I)
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related colorants
Check your shelf
Find CUPROUS OXIDE in your products.
Scan any cosmetic product with LuxSense to see if it contains CUPROUS OXIDE and get a full ingredient breakdown with safety scores.
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.