Ingredient
Lactobacillus/Soybean Ferment Extract
Fermented Soybean Extract
Soy Ferment Filtrate
What it is
An extract obtained by fermenting soybean (Glycine soja) material with Lactobacillus bacteria, used in serums and essences as a skin-conditioning, mildly hydrating ingredient. It is a common component of fermented "probiotic" skincare formulas of Korean and Japanese origin.
How it works
Fermentation breaks soy proteins and isoflavones into smaller peptides and amino acids that are more readily taken up at the skin surface, contributing humectant and light antioxidant benefits associated with soy isoflavones.
What it does
Humectant
Skin conditioning
Antioxidant
Concerns to know
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Well tolerated
No significant safety concern is reported for this ingredient as used in cosmetics.