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Ingredient guide
Limosilactobacillus Fermentum Ferment Filtrate
In short
A ferment filtrate from Limosilactobacillus fermentum known for antioxidant and calming metabolites. It may help reduce the look of redness and support a balanced barrier. Research in skincare is still early.
Reviewed against published evidence · editorially independent · no brand pays for placement
Works for
Redness · Barrier
Skin type
Sensitive · Oily
Best used
Anytime
What it is
Ferment filtrate of Limosilactobacillus fermentum (formerly Lactobacillus fermentum, reclassified 2020); produces glutathione and iron-chelating metabolites supporting keratinocyte redox balance; antioxidant metabolites and short-chain fatty acids in filtrate support anti-inflammatory skin tone; new genus INCI follows 2020-2021 Lactobacillaceae reclassification.
Also found as
Related
Common questions
Its antioxidant and soothing metabolites can help skin look calmer and less reactive. It also supports surface balance.
It can suit sensitive or oilier skin types looking for gentle redness‑reducing and balancing benefits.
It appears in toners, essences, or serums as part of microbiome‑supporting blends.
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Personal guidance only · For clinical concerns, see a dermatologist.