Galactomyces/Soymilk Ferment Filtrate

Galactomyces/Soymilk Ferment Filtrate is a liquid derived from the fermentation of soymilk using Galactomyces yeast. During fermentation, the yeast breaks down soy proteins and creates a nutrient-rich filtrate that contains amino acids, peptides, and fermentation byproducts. This ingredient functions primarily as a humectant — a substance that draws moisture into the skin and helps it retain hydration.The fermentation process itself is key to its appeal in skincare formulation. Fermented ingredients are thought to be more bioavailable to the skin, meaning they may be absorbed and utilised m…

As a humectant, Galactomyces/Soymilk Ferment Filtrate works by binding water molecules and drawing them into the outer layers of the skin. This increases skin hydration and can improve skin feel and appearance, particularly in dehydrated or dry areas.The fermentation process breaks down soy proteins into smaller peptides and amino acids, which are more readily absorbed by the skin. These components support the skin's natural amino acid profile and may contribute to overall skin health and resilience.

This ingredient is often found in essences, toners, serums and sheet masks — formats that allow for straightforward application to clean skin. It can be used as part of a layering routine with other hydrating or treatment products. Apply to damp skin for optimal moisture absorption, as humectants work best when there is water present on the skin's surface.

Generally well-tolerated across skin types. Those with a history of fungal acne (Malassezia-related) may wish to patch-test first, as fermented ingredients and amino acid sources can occasionally trigger flare-ups in susceptible individuals.