Lactobacillus … Ferment Filtrate

This ingredient is a fermented filtrate derived from the Japanese apricot (Prunus mume), created by fermenting the fruit, leaf, and root extracts using Lactobacillus bacteria. Fermentation breaks down the plant material into smaller, more bioavailable compounds, which can enhance both stability and skin penetration.In formulations, it functions primarily as a skin conditioner and antistatic agent. The fermentation process produces beneficial compounds including organic acids and peptides, which work to smooth the skin surface and support the skin's natural protective barrier.

Fermentation transforms the raw plant compounds into smaller molecular fragments and produces beneficial organic acids. These work to condition the outer layers of the skin by attracting and binding moisture, whilst also helping to smooth the microscopic texture of the stratum corneum.The antistatic action occurs through the ingredient's chemical composition, which neutralises static charge on the skin surface—this improves how subsequent products spread and feel on application.

This ingredient is typically used as part of a rinse-off product or leave-on serum or essence. It works well in hydrating toners, essences, and gentle serums—often positioned early in a routine to support barrier health and prepare the skin for subsequent actives. No specific usage restrictions apply, though as with any new product, patch testing is wise if you have sensitive skin.

Generally well-tolerated across skin types. Those with fermentation sensitivities or very reactive skin should patch test first, as fermented ingredients occasionally trigger sensitivity in a small subset of individuals.