SACCHAROMYCES/MAGNESIUM FERMENT is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

SACCHAROMYCES/MAGNESIUM FERMENT

Safety grade: A

This is a fermented ingredient made from yeast and magnesium that's created through a controlled fermentation process. It's a blend of beneficial compounds produced when yeast breaks down in the presence of magnesium.

While its specific cosmetic benefits have not been officially reported, fermented yeast ingredients are typically used in skincare products for their potential antioxidant, skin-conditioning, and skin-soothing properties.

Graded using: COSING, FDA.

Last verified: May 26, 2026