Saccharomyces/Rice Bran Ferment

Saccharomyces/Rice Bran Ferment is a fermented ingredient derived from rice bran that has been processed using Saccharomyces yeast. This fermentation process breaks down the rice bran's cell walls, creating smaller molecular compounds that the skin can more readily absorb. The resulting extract contains amino acids, B vitamins, and polysaccharides.In skincare formulations, it primarily acts as a humectant — a substance that draws water from the air and deeper skin layers to the surface, helping to improve hydration and maintain moisture levels in the stratum corneum.

As a humectant, this ingredient attracts and binds water molecules to the outer layers of skin. The fermentation process makes the rice bran's beneficial compounds — amino acids, vitamins, and small-chain polysaccharides — small enough to penetrate the skin's barrier more effectively than whole rice bran would.These bioactive molecules are thought to support skin's natural moisturising factors and may help reinforce the skin's barrier function, though research on this specific fermented extract remains limited.

This ingredient works well in serums, essences, and lightweight moisturisers. Because it functions as a humectant, it performs best when applied to damp skin and sealed with an occlusive (such as a facial oil or moisturiser) to prevent water loss. It layers well with other hydrating ingredients and can be used morning and evening as part of a regular routine.

Generally well-tolerated by most skin types. Those with sensitivities to fermented ingredients or yeast should patch test first, as fermentation can occasionally trigger mild irritation in sensitive individuals.