What it is
This ingredient is the filtered liquid left after Lactobacillus bacteria are cultured on a substrate derived from sea buckthorn. The fermentation process breaks down plant components into smaller molecules and generates metabolites such as organic acids and peptides, which are valued in cosmetics for their conditioning effect on the skin. It typically appears in the water phase of leave-on formulas as a botanical-ferment active.
Safety & warnings
Ferment filtrates of this type are generally well tolerated in leave-on products. As with other botanical ferments, sensitive individuals may occasionally react, and the finished formula determines overall tolerability.
Origin & sourcing
Biotechnological: produced by lactic-acid bacterial fermentation of sea buckthorn (Hippophae rhamnoides) plant material, after which the microbial cells are filtered out to leave the filtrate.
Questions everyone asks
What is this ingredient made from?
It is the filtered liquid produced by fermenting sea buckthorn plant material with Lactobacillus bacteria and then removing the bacterial cells.
What does it do in a sunscreen?
It acts as a skin-conditioning, antioxidant-associated ferment active and is not a UV filter.