Lactobacillus Extract Filtrate

Lactobacillus Extract Filtrate is a fermentation byproduct derived from Lactobacillus bacteria. The filtrate contains metabolites and compounds produced during the fermentation process, which are then extracted and stabilised for use in skincare. It functions primarily as a humectant, meaning it draws water into the skin and helps it stay hydrated.Unlike the live bacteria themselves, this extract is a processed ingredient that poses no risk of bacterial colonisation on the skin. It's used in formulations where hydration and skin conditioning are priorities.

As a humectant, Lactobacillus Extract Filtrate works by attracting water molecules from the air and deeper skin layers, drawing them into the outer layers of the epidermis. This increases skin hydration and can improve the appearance of fine lines and dryness.The metabolites in the extract may also interact with skin in ways that support its natural barrier function and condition the skin surface, though the precise mechanisms are not fully characterised in published literature.

Lactobacillus Extract Filtrate is typically used in serums, essences, and hydrating formulations. Apply to clean skin before heavier creams or oils, or layer with other hydrating products. As with any new ingredient, introduce it gradually to assess tolerance. It pairs well with other humectants like glycerine and hyaluronic acid, and with barrier-supporting ingredients.

Generally well-tolerated by most skin types. Because it is a processed extract rather than live bacteria, systemic or pathogenic concerns are minimal. Those with severe sensitivity should patch test first.