Lactobacillus … Ferment Filtrate

This ingredient is a fermentation filtrate combining eight plant-derived components: Lactobacillus (a probiotic bacterium), Centella Asiatica (Asian pennywort), Gleditsia Sinensis thorn, Houttuynia Cordata extract, Phellodendron Amurense bark, Polygonum Cuspidatum root, Prunella Vulgaris, and Torilis Japonica extract. The fermentation process breaks down the plant material, potentially making bioactive compounds more bioavailable and creating additional metabolites from the fermentation process itself.The ingredient functions primarily as a skin conditioning agent. The individual botanical …

Fermentation breaks down plant cell walls and reduces larger molecules into smaller, more penetrable compounds. This increases the availability of active constituents from each plant source. The Lactobacillus component may also produce additional beneficial metabolites during fermentation, such as organic acids and peptides.Once applied to skin, the ingredient acts as a hydrating and conditioning agent, helping to maintain moisture levels and support the skin's natural barrier function. The antioxidant compounds present may help protect against environmental stressors.

This ingredient is typically found in essences, serums, or hydrating toners at relatively low concentrations. It works well as part of a layered routine and pairs effectively with other hydrating or soothing ingredients. No special handling is required; use according to product instructions, generally once or twice daily after cleansing.

Generally well-tolerated in cosmetic formulations. Individuals with known sensitivities to any of the included plants (particularly relevant for those sensitive to Asteraceae or Araliaceae families) should patch test first.