Leuconostoc/Radish Root Ferment Filtrate (Radish Root Ferment Filtrate)

Leuconostoc/Radish Root Ferment Filtrate is a ferment-derived cosmetic ingredient produced by fermenting radish root with Leuconostoc bacteria and then filtering the resulting broth. It is widely used to support product preservation and overall formula integrity, contributing antimicrobial activity that can help limit the growth of certain microorganisms when incorporated into a well-balanced preservation system. The filtrate also offers skin-conditioning benefits, helping maintain a comfortable feel and supporting a gentle positioning for sensitive-skin concepts. It is commonly used in “naturally inspired” and minimalist formulations such as creams, lotions, serums, toners, masks, cleansers, deodorants, and haircare, often paired with organic acid salts, glycols, chelators, or other multifunctional boosters to strengthen spectrum coverage and improve robustness. Use level and formulation strategy are guided by supplier specifications, with attention to pH range, water-phase incorporation, compatibility with surfactants and polymers, and the need for appropriate microbial challenge testing in the finished system.