Prebiotic/Probiotic/Postbiotic

Lactobacillus/Eriodictyon Californicum Ferment Extract

INCI: LACTOBACILLUS/ERIODICTYON CALIFORNICUM FERMENT EXTRACT

Reviewed by Daisy · Last updated 14 Aug 2026

A fermented botanical extract that conditions and supports skin barrier function

Best For Skin Types

All, Dry, Sensitive, Mature

Addresses

Dryness, Hydration, Barrier repair, Sensitivity

Usage Frequency

Daily

What Is Lactobacillus/Eriodictyon Californicum Ferment Extract?

Lactobacillus/Eriodictyon Californicum Ferment Extract is created through the fermentation of eriodictyon californicum (yerba santa), a plant native to California, using Lactobacillus cultures. Fermentation breaks down plant compounds into smaller molecules and generates bioactive byproducts, which can enhance the ingredient's efficacy and absorption into the skin.

In skincare formulations, this extract functions primarily as a skin conditioning agent, helping to improve skin texture and maintain hydration levels. The fermentation process may also contribute antimicrobial and antioxidant properties, though these are secondary to its main conditioning role.

How It Works

During fermentation, Lactobacillus cultures break down the plant material of eriodictyon californicum, converting larger plant compounds into smaller peptides and bioactive molecules. These fermentation metabolites are thought to be more readily absorbed by the skin than the plant extract alone.

Once applied, the extract works to condition the skin surface, improving hydration retention and supporting the skin barrier. The antioxidant compounds generated during fermentation may also help protect skin from oxidative stress.

Clinical Evidence & References

Evidence specifically addressing this fermented extract blend is limited in published literature. The conditioning benefits are largely supported by the ingredient's classification and in-vitro data rather than extensive human clinical trials.

Fermentation as a process is recognised in cosmetic science as a method that can enhance ingredient bioavailability and bioactivity, though individual fermented extracts vary in their studied efficacy. This ingredient is generally considered safe and well-tolerated, but individual efficacy data would benefit from further research.

How to Use

This ingredient is typically found in serums, essences, toners and moisturisers where it can be absorbed efficiently. Use as directed by the formulation—usually daily as part of your standard routine. It is commonly combined with other hydrating or conditioning ingredients for enhanced effect.

Safety & Precautions

Generally well-tolerated by most skin types. Those with sensitivities to fermented ingredients or botanical extracts should patch-test first, though adverse reactions are rare.

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