Grifola Frondosa/Ilex Paraguariensis Leaf Extract Ferment Filtrate

This ingredient is a fermented extract combining Grifola frondosa (maitake mushroom) and Ilex paraguariensis (yerba maté leaf). Fermentation breaks down the plant cell walls, making the active compounds more bioavailable and creating additional beneficial metabolites in the process. The result is a concentrated liquid that brings together the polysaccharides from maitake and the polyphenols from yerba maté.In skincare formulations, this blend functions as an antioxidant, humectant and skin conditioner. The antioxidant properties come from both plant sources, whilst the humectant action help…

Fermentation enhances the bioavailability of plant compounds by breaking down complex cell structures and creating smaller, more absorbable molecules. The polyphenols released during this process can penetrate the outer layers of skin more effectively than non-fermented plant extracts.Once in the skin, these compounds work to neutralise free radicals—unstable molecules that contribute to premature ageing and skin stress. The humectant properties draw water from the environment and deeper skin layers into the stratum corneum, helping to plump the skin and support barrier function.

This ingredient is best used as part of a layered routine—apply to clean, slightly damp skin in the morning and evening for optimal hydration. It works well in serums or essences as an early step before heavier creams or oils. Given its antioxidant properties, it pairs well with sunscreen during the day and can be layered with retinol or vitamin C products at night, though introduce gradually if using multiple actives.

Generally well-tolerated by most skin types. Those with sensitivities to mushrooms or caffeine-containing plants may wish to patch-test first, as yerba maté contains caffeine.