What it is
Galactomyces Ferment Filtrate is the liquid obtained after fermenting a substrate with the yeast-like fungus Galactomyces, leaving behind amino acids, vitamins, and other small metabolites. It is valued as a skin-conditioning ingredient in essences and is sometimes carried into sunscreens for the same purpose. It does not provide UV filtration.
Safety & warnings
Generally well tolerated. As a fermentation-derived ingredient it is a complex mixture, so individuals prone to sensitivity may occasionally react; patch testing is reasonable for very reactive skin.
Origin & sourcing
Biotechnological; produced by fermenting a nutrient substrate with Galactomyces microorganisms and filtering off the cells to collect the filtrate.
History
It became widely known through fermentation-based Japanese and Korean essences, where the filtrate is a central conditioning ingredient.
Questions everyone asks
What is galactomyces ferment filtrate?
It is the filtered liquid from a Galactomyces yeast fermentation, used as a skin-conditioning ingredient.
Is it a sunscreen active?
No. It is a conditioning ingredient and offers no UV protection by itself.