Lactobacillus/Soybean Ferment Extract

Lactobacillus/soybean ferment extract is produced by fermenting soybean material using Lactobacillus bacteria. This fermentation process breaks down soybean compounds into smaller, more bioavailable molecules, including isoflavone metabolites such as equol. The result is a skin conditioning ingredient that works to support the skin's surface.This ingredient appears in a small proportion of skincare products and is typically used at modest concentrations. It functions primarily as a skin conditioner, helping to maintain skin texture and comfort.

During fermentation, Lactobacillus bacteria metabolise soybean compounds into bioactive molecules, including equol—a metabolite of plant isoflavones. These fermentation byproducts can interact with skin cells when applied topically.In laboratory studies, this ferment extract has been shown to influence the expression of genes involved in skin hydration, collagen synthesis, and growth factor signalling. However, translating these cellular-level findings to visible skin improvements requires further investigation in human subjects.

Fermented extracts work well as part of a layered skincare routine. Apply to clean skin as part of your treatment step, or use in serums and essences alongside other hydrating or conditioning ingredients. No special precautions are needed for application.

This ingredient is generally well-tolerated. As with any fermented product, those with sensitivities to Lactobacillus or soy should check the full product formulation.