Lentinus Edodes/Licorice Root Extract Ferment Filtrate

This ingredient combines two botanicals through fermentation: Lentinus edodes (shiitake mushroom) and licorice root extract. The fermentation process breaks down the plant material, creating a filtrate—a concentrated liquid extract—that contains beneficial compounds from both sources. Fermentation can enhance the bioavailability of certain plant constituents, potentially making them easier for skin to utilise.The resulting ingredient functions as an antioxidant and humectant, helping to protect skin from environmental stressors whilst also drawing moisture into the outer layers of the skin.

The antioxidant compounds in this fermented extract work by neutralising free radicals—unstable molecules that can damage skin cells and accelerate visible signs of ageing. This protective action helps maintain skin integrity over time.As a humectant, the ingredient draws water molecules into the stratum corneum (the outermost layer of skin), which plumps the skin and can temporarily reduce the appearance of fine lines. The conditioning benefit comes from the polysaccharides and other compounds that coat the skin surface, enhancing smoothness and hydration retention.

This ingredient is typically found in serums, essences, and hydrating toners at concentrations that allow for regular use. Apply to clean skin, either as a standalone product or as part of a layered routine. It pairs well with other humectants and antioxidants. If using a product containing this ingredient, consistency matters more than occasional use—daily application will yield better hydration and protective benefits than sporadic use.

This ingredient is generally well-tolerated by most skin types. Those with mushroom or licorice sensitivities should patch test first, though true allergies are uncommon.