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The ingredient, explained

Lactobacillus Ferment

A human study tested a specific ferment-containing combination.

Skin conditioning
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Ingredient guide

What it is and what it does

Lactobacillus Ferment is the product obtained from the fermentation of Lactobacillus

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

Skin conditioning
A broad cosmetic role for maintaining skin condition. It does not identify a particular clinical benefit.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

Human research on a combination

A 42-woman comparison reported greater improvement in several instrument-measured skin outcomes when a cosmetic regimen was added after radiofrequency treatment.

What this does not tell us

The regimen contained both ferment and ferment lysate from a particular L. plantarum strain. It did not isolate Lactobacillus ferment, and cannot establish equivalent effects for an unspecified ferment in another product.

Sources for this summary. PubMed 40320875 ↗

Research review checked Oct 1, 2026

Bounded targeted searches for the exact ingredient identity in primary research or final expert assessments, with selected-source verification. Not a systematic review.

Ingredient research is not proof that a product containing this ingredient works.

Read the 1 selected study

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Products containing this ingredient

All 83 products ↗

From the wider catalogue. Linked by the ingredient list, without an efficacy ranking.

Names and identifiers

Registry identity

Lactobacillus Ferment is the product obtained from the fermentation of Lactobacillus

INCI name on ingredient lists
LACTOBACILLUS FERMENT

Sources for this ingredient record