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COPPER CARBONATE HYDROXIDE

CAS 12069-69-1
45

Safety score · 0–100

Moderate

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

About

A copper carbonate hydroxide complex with limited cosmetic application due to potential metal ion concerns.

Copper carbonate hydroxide (also known as basic copper carbonate or malachite extract precursor) is an inorganic copper compound historically used as a pigment (CI Natural Green 3) and occasionally in skincare for its antimicrobial properties. However, copper ions can cause skin discoloration and, in higher concentrations, may be irritating. The compound is not specifically restricted in EU cosmetic annexes but must meet heavy metal purity limits. Limited modern cosmetic usage data.

Skin benefits

  • Antimicrobial properties
  • Pigment (CI Natural Green 3)

Known concerns

  • Copper ion skin discoloration potential
  • Limited cosmetic safety data
  • Heavy metal purity requirements
  • Potential irritation at higher concentrations

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.