Saccharomyces/Copper Ferment

A copper-containing complex produced by fermenting Saccharomyces yeast with copper ions. Used in skincare to supply trace minerals and antioxidant support for a more refined-looking complexion.
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Ingredient Snapshot

Overview
A copper-infused yeast ferment offering antioxidant support.
Category
Antioxidant, Skin Conditioning, Barrier Support
Type
Mineral

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Offers antioxidant support for a fresher, more resilient-looking complexion, though evidence for visible improvement is modest and formula-dependent.

Uses In Skincare & Cosmetics

Common in serums and moisturizers focused on environmental defense and barrier care, and also appears in eye gels and other leave-on treatments that condition skin.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Typically safe at cosmetic levels; some may notice transient tingling or redness. Patch test if reactive, especially when using strong acids or retinoids.

Is Saccharomyces/Copper Ferment a Good Ingredient?

Fair, because it provides trace antioxidant and conditioning benefits, but the data in leave-on products stays modest and depends heavily on formulation. It may also cause mild irritation in sensitive skin or when layered with strong actives.

Products with Saccharomyces/Copper Ferment

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