What it is
This ingredient is obtained by fermenting rice bran with Saccharomyces yeast, then filtering and extracting the resulting liquid. Rice bran supplies sugars, amino acids, and vitamin E-type and ferulic acid components, which fermentation can transform into smaller, skin-compatible metabolites. In sunscreen and daily-care products it serves as a water-phase conditioning agent that supports hydration and contributes antioxidant character.
Safety & warnings
Generally well tolerated in leave-on cosmetics at the low levels normally used. As a rice-derived ferment it is not a common allergen, though sensitivity is possible in reactive individuals. It is water-based and is not considered comedogenic.
Origin & sourcing
Naturally derived. It is made by fermenting rice bran, a byproduct of rice milling, with Saccharomyces yeast, followed by filtration and extraction to yield the active material.
Questions everyone asks
Is this related to rice ferment ingredients used in toners?
Yes, it belongs to the same family of rice-derived ferment ingredients valued for their conditioning and humectant properties.
Does it provide UV protection?
No. It is a conditioning and antioxidant-oriented ingredient and does not contribute to the labeled SPF.