Saccharomyces … Ferment Filtrate

This ingredient is a fermentation filtrate that combines borage seed oil with glycerin, created through a controlled fermentation process using Saccharomyces (a beneficial yeast). The result is a liquid extract that retains the skin-conditioning properties of borage oil whilst incorporating fermentation-derived compounds.Borage seed oil is naturally rich in gamma-linolenic acid (GLA), an omega-6 fatty acid known for its role in maintaining skin barrier function. The fermentation process may enhance bioavailability and create additional compounds that support skin condition.

The ingredient works through multiple mechanisms. The borage oil provides emollient lipids that create a protective film on the skin surface, reducing transepidermal water loss. Glycerin acts as a humectant, attracting water from deeper skin layers and the environment to the outer layers.The fermentation process may increase the penetration capacity of these compounds and create fermentation metabolites that support skin conditioning beyond what borage oil alone would provide, though this effect requires further substantiation.

This ingredient is typically used as part of serums, moisturisers, or treatment products. It can be layered with other actives or used as a standalone hydrating step. Because it is a conditioning ingredient rather than an active treatment, it can be used daily. It pairs well with other skin-supporting ingredients like ceramides or fatty acids.

This ingredient is generally well-tolerated by most skin types. Those with a known sensitivity to borage or yeast-derived products should patch test first.