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Ingredient guide
Lactobacillus Jensenii Ferment Filtrate
In short
A ferment filtrate from Lactobacillus jensenii known for lactic acid and gentle antimicrobial metabolites. It may help support a balanced environment on oilier skin while reducing the look of redness. Evidence remains early.
Reviewed against published evidence · editorially independent · no brand pays for placement
Works for
Barrier · Redness
Skin type
Sensitive · Oily
Best used
Anytime
What it is
Ferment filtrate of Lactobacillus jensenii (genus unchanged in 2020 reclassification); commensal strain with strong D-lactic acid production profile; metabolite fraction explored for gentle skin pH buffering and C. acnes suppression; emerging in microbiome-targeted topical formulations for acne-prone skin; bacteriocin jensenii has narrow-spectrum antimicrobial activity.
Also found as
Related
Common questions
It offers mild balancing and calming effects, helping the skin look clearer and less reactive.
Yes, it’s often explored for sensitive yet oilier skin types seeking surface‑balancing support.
It’s used in microbiome‑focused serums and essences in early‑stage formulations.
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Personal guidance only · For clinical concerns, see a dermatologist.