Copper (nano) [INCI] Colloidal Copper (nano) [INCI]
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A cosmetic ingredient. Exercise caution due to limited available safety data.
Copper (nano) is regulated under EU Regulation (EC) No 1223/2009 as amended by Regulation (EU) 2022/657 on nanomaterials. Nano forms of copper must be declared in the ingredient list as 'Copper (nano)' per Article 19(1)(g). The SCCS has not issued a definitive opinion establishing safety of nano copper in cosmetic products. Nano copper particles may exhibit different bioavailability and potential for dermal penetration compared to bulk copper, raising uncertainty about its safety in cosmetic applications.
Skin benefits
- May provide antimicrobial properties when used as nano copper in cosmetic formulations
- Copper is an essential trace element involved in skin collagen synthesis
Known concerns
- Nano form subject to mandatory declaration in ingredient list (EU Cosmetics Reg. Art. 19)
- SCCS safety assessment not yet finalized for cosmetic use
- Nano-specific concerns about potential dermal penetration and bioavailability
- Environmental release of nano copper particles
References
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.