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Saccharomyces/Copper Ferment
Saccharomyces/Copper Ferment
Low concern
Copper is an essential trace mineral; excess intake can cause GI symptoms and, chronically, liver toxicity.
Found in
2 products
What it is
Yeast (Saccharomyces) culture grown in copper-enriched medium; provides bioavailable copper bound in yeast biomass.
Used in cosmetics as a skin-conditioning agent; also used as a copper-fortification ingredient in supplements.
Why it's flagged
- Excessive copper intake risk in supplements
What regulators actually say
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Regulatory status
United States — FDA
Permitted in cosmetics; copper is recognized as a nutrient under 21 CFR 184.1.
European Union — EFSA
Authorized as a source of copper in food supplements.
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