Ingredient guide
L. Jensenii Ferment Filtrate
INCI name · 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.
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.
Evidence receipt
No linked study yet
No verified study is linked to this exact ingredient and route. The guidance below describes conventional use; it is not evidence of efficacy.
Where it sits
Serums sit after toner and before moisturiser. Thinnest to thickest, water before oil.
- Cleanse
- Tone
- L. Jensenii Ferment Filtrate
- Moisturise
- SPF
Also found as
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Check an ingredient listCommon questions
What does L. Jensenii Ferment Filtrate do?
It offers mild balancing and calming effects, helping the skin look clearer and less reactive.
Is it suitable for sensitive or oily skin?
Yes, it’s often explored for sensitive yet oilier skin types seeking surface‑balancing support.
How does it appear in skincare?
It’s used in microbiome‑focused serums and essences in early‑stage formulations.
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Personal guidance, not medical advice.