Bacillus/Glutamic Acid Ferment Filtrate

Bacillus/Glutamic Acid Ferment Filtrate is a skin conditioning ingredient derived from the fermentation of Bacillus bacteria in a glutamic acid medium. The fermentation process breaks down the bacterial cells, leaving behind a filtrate rich in amino acids, peptides, and other fermentation-derived compounds that can benefit the skin.This ingredient works as a humectant and skin conditioning agent, helping to improve hydration and support the skin's natural moisture retention. It is typically used in serums, essences, and moisturisers at relatively modest concentrations.

The fermentation process generates amino acids and small peptides from the Bacillus culture, which are then filtered to create the final ingredient. These compounds are naturally hygroscopic, meaning they attract and bind water to the skin's surface, enhancing hydration.The amino acids and peptides may also support the skin's natural barrier function and help maintain the integrity of the stratum corneum, the skin's outermost layer responsible for moisture retention.

This ingredient is most commonly found in lightweight serums and essences where its humectant properties can be leveraged. Apply to clean, damp skin before heavier creams to maximise hydration benefits. It typically works well in layered skincare routines and is compatible with most other ingredients, though patch testing is always sensible when introducing anything new.

This ingredient is generally well-tolerated and considered safe for topical use in cosmetics. It is unlikely to cause irritation for most skin types, though those with severe sensitivities to fermented ingredients should patch test first.