Ingredient guide
L. Brevis Ferment Filtrate
Levilactobacillus Brevis Ferment Filtrate
In short
A ferment filtrate from Levilactobacillus brevis containing film‑forming and hydrating postbiotic components. It can help keep moisture on the skin’s surface and support a comfortable barrier. Evidence is still early.
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What it is
Ferment filtrate of Levilactobacillus brevis (formerly Lactobacillus brevis, reclassified 2020); heterofermentative strain producing exopolysaccharides with antioxidant and film-forming properties; brevin bacteriocins have antimicrobial activity; EPS fraction explored for skin hydration and microbiome-modulating applications; new genus INCI follows 2020-2021 Lactobacillaceae reclassification.
Where it sits
Serums sit after toner and before moisturiser. Thinnest to thickest, water before oil.
- Cleanse
- Tone
- L. Brevis Ferment Filtrate
- Moisturise
- SPF
Also found as
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Where to find it
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Search the Lens for l. brevis ferment filtrateCommon questions
What does L. Brevis Ferment Filtrate do?
It offers hydration support and a light, protective feel from its exopolysaccharides. These can help skin look smoother and better moisturised.
Is L. Brevis Ferment Filtrate good for sensitive or dry skin?
Yes, it’s generally used for dry or easily irritated skin thanks to its gentle moisture‑retaining properties.
How is it used in skincare?
You’ll find it in hydrating serums and moisturisers where it complements humectants and barrier‑supporting ingredients.
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Personal guidance, not medical advice.