Lactobacillus/Rye Flour Ferment
INCI: Lactobacillus Ferment
Reviewed by Emma · Last updated 30 Jul 2026
Also known as: Lactobacillus Ferment
Non-living probiotic made by fermenting rye flour with Lactobacillus Works as a humectant to draw and hold moisture to skin
EWG Safety Score
What Is Lactobacillus/Rye Flour Ferment?
Lactobacillus rye flour ferment is a non-living probiotic made by fermenting rye flour with the microorganism Lactobacillus that’s used to create sourdough bread. In cosmetics, it works as a humectant to draw and hold moisture to skin, helps to balance the natural flora that populate skin’s surface, aids in visibly repairing skin’s barrier, improves signs of dry skin conditions, and can have a calming action. As probiotic Lactobacillus rye flour ferment breaks down on skin, it creates lactic acid, a postbiotic ingredient with many benefits for skin.
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Lactitol
A sugar alcohol humectant that draws moisture into the skin and supports hydration
Lactobacillus
Typically made by fermentation of simple organisms Helps condition and bind moisture to skin
Lactobacillus/Coconut Fruit Juice Ferment Filtrate
Result of combining lactobacillus bacteria + coconut juice Blend starts a fermentation process that releases natural sugars
Lactoperoxidase
Natural enzyme derived from milk Also found in human saliva and mucosal systems
Lactose
Principal sugar found in milk
Larix Europaea Wood Extract
A plant-derived humectant from European larch that helps skin retain moisture
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