Streptococcus Thermophilus … Ferment Filtrate

This ingredient is a ferment filtrate — a liquid extract created by fermenting beneficial bacterial cultures (Streptococcus thermophilus, Lactobacillus, and Bifidobacterium) alongside licorice root extract. The fermentation process breaks down plant compounds into smaller, more bioavailable molecules, while the bacterial metabolites contribute bioactive compounds to the final filtrate.The result is a multi-functional ingredient that combines prebiotic and probiotic-derived components with the known soothing properties of licorice. It's designed to work as a skin conditioning agent whilst su…

Probiotic ferment filtrates work by delivering beneficial bacterial metabolites and enzymatic byproducts to the skin. These compounds can help modulate the skin's natural microbiota, supporting its ability to maintain a healthy pH and protective barrier. The licorice component adds documented anti-inflammatory and antioxidant activity, helping to reduce visible redness and oxidative stress.Because this is a ferment filtrate rather than live bacteria, the benefit comes from the metabolic compounds produced during fermentation rather than from live organisms colonising the skin. This makes it…

This ingredient is typically found in serums, essences, toners, and moisturisers at concentrations that support overall skin conditioning. It can be used daily as part of a routine and pairs well with other hydrating or soothing ingredients. If your skin is sensitive, introduce it gradually to assess tolerance, though it is generally formulated for gentle, everyday use.

This ingredient is generally well-tolerated across skin types. Those with severe probiotic sensitivities or compromised barriers may wish to patch-test first, though adverse reactions are uncommon.