Snapshot
- Overview
- A copper-infused yeast ferment offering antioxidant support.
- Category
- Antioxidant, Skin Conditioning, Barrier Support
- Type
- Mineral
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.
Like this ingredient?
Our take
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.
What it does
Skin Benefits
Offers antioxidant support for a fresher, more resilient-looking complexion, though evidence for visible improvement is modest and formula-dependent.
Where you'll find it
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.
Before you use it
Safety
Typically safe at cosmetic levels; some may notice transient tingling or redness. Patch test if reactive, especially when using strong acids or retinoids.
Products with Saccharomyces/Copper Ferment
