Ingredient
Malachite Extract
Malachite Mineral Extract
What it is
A mineral-derived ingredient made by grinding malachite (a copper carbonate mineral), dissolving it in hydrochloric acid, and neutralizing with sodium bicarbonate; used in small amounts as a trace-mineral additive in some Korean skincare, per its EU CosIng definition.
How it works
The acid-solubilization process releases trace copper and mineral ions into solution, which formulators use as a minor antioxidant/conditioning additive, though its cosmetic mechanism is less well characterized than more common actives.
What it does
Skin conditioning
Antioxidant
Concerns to know
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Well tolerated
No significant safety concern is reported for this ingredient as used in cosmetics.