Streptococcus Thermophilus Ferment

Streptococcus thermophilus ferment is a probiotic-derived ingredient created through the controlled fermentation of the bacterium Streptococcus thermophilus. This naturally occurring microorganism is commonly used in dairy fermentation (such as yoghurt production) and is recognised as safe for topical use in skincare formulations.In skincare products, this ferment functions primarily as a humectant and skin conditioning agent. It works to draw moisture into the skin and support the skin's natural moisture retention, whilst also providing compounds that help maintain skin texture and softness.

Fermented ingredients like Streptococcus thermophilus ferment produce bioactive compounds during fermentation, including peptides and amino acids. These compounds have hygroscopic properties, meaning they attract and bind water molecules to the skin, helping to improve hydration on a surface level.Additionally, the fermentation process generates smaller molecular weight compounds that can support the skin's natural conditioning and may help maintain the skin barrier's integrity by providing nourishing components.

This ingredient is typically found at low concentrations in serums, toners, and moisturisers. It works well alongside other hydrating and conditioning ingredients. Apply to clean skin as part of your regular skincare routine, following the product's instructions. Because this is a gentle ingredient, it can generally be used daily without concern.

Streptococcus thermophilus ferment is generally well-tolerated and recognised as safe for topical skincare use. Those with known sensitivity to fermented ingredients should patch test first.