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Ingredient guide
Limosilactobacillus Reuteri Ferment Filtrate
In short
A ferment filtrate from Limosilactobacillus reuteri known for its soothing and microbiome‑supportive properties. It can help reduce visible redness and support a balanced barrier.
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 reuteri (formerly Lactobacillus reuteri, reclassified 2020 IJSEM); reuterin and reutericin bacteriocins from this strain have demonstrated antimicrobial activity toward C. acnes and dysbiotic skin microorganisms; metabolites modulate TLR2 innate immune signalling toward anti-inflammatory tone; this new genus INCI introduced following the major 2020-2021 Lactobacillaceae reclassification.
Also found as
Related
Common questions
It offers calming benefits and supports a more balanced skin environment through its postbiotic metabolites.
It suits sensitive or easily flushed skin, and can also help oily skin that benefits from microbiome‑supportive care.
It is added to essences, serums, and moisturisers to provide soothing and barrier‑supportive effects.
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Personal guidance only · For clinical concerns, see a dermatologist.