Lactobacillus/Astragalus Membranaceus Root Extract Ferment Filtrate

This ingredient is a ferment filtrate derived from Astragalus membranaceus root extract, processed using Lactobacillus fermentation. Astragalus is a traditional plant used in Eastern medicine, and fermentation breaks down its compounds into smaller molecular fragments that may penetrate the skin more readily.The fermentation process creates a liquid extract rich in polysaccharides, amino acids and other bioactive compounds. It functions primarily as an antioxidant and skin conditioner, helping to protect skin from environmental stress whilst supporting hydration and smoothness.

The fermentation process breaks down the plant's cell walls and complex molecules into smaller compounds. These fragments are thought to be more easily absorbed by the skin and may trigger mild beneficial responses in skin cells.As an antioxidant, the extract donates electrons to neutralise unstable free radicals before they can damage skin proteins and lipids. The conditioning effect works partly through hydration and partly through creating a protective film on the skin surface, which supports the barrier.

This ingredient is typically found in serums, essences, toners and moisturisers at relatively low concentrations. It works well in layered skincare routines and pairs easily with most other actives. Apply to clean skin before heavier creams to allow absorption.

Generally well-tolerated and suitable for sensitive skin. Those with known fermentation sensitivities or histamine concerns should patch test first.