Prebiotic/Probiotic/Postbiotic

Lactobacillus … Filtrate

INCI: LACTOBACILLUS/ACTAEA HERACLEIFOLIA ROOT/CITRUS UNSHIU PEEL/GARDENIA FLORIDA FLOWER/LICORICE ROOT/MILK/RHUS SEMIALATA GALL FERMENT EXTRACT FILTRATE

Reviewed by Emma · Last updated 2 Jun 2026

Also known as: Lactobacillus/actaea Heracleifolia Root/citrus Unshiu Peel/gardenia Florida Flower/licorice Root/milk/rhus Semialata Gall Ferment Extract Filtrate

A fermented botanical blend designed to support skin hydration and antioxidant defence

Best For Skin Types

All, Sensitive, Dry

Addresses

Dryness, Sensitivity, Hydration

Usage Frequency

Daily

What Is Lactobacillus … Filtrate?

This ingredient is a composite of fermented plant extracts and botanical materials, including Lactobacillus fermentation byproducts, Actaea heracleifolia root, Citrus unshiu peel, Gardenia florida flower, licorice root, milk proteins, and Rhus semialata gall ferment. The fermentation process breaks down plant cell walls and generates metabolic byproducts that may enhance skin-conditioning properties.

The blend functions primarily as a humectant and antioxidant, helping to draw moisture into the skin and protect against oxidative stress. The licorice root component has a history of use in skincare for its soothing properties, whilst citrus and gardenia contribute polyphenols and plant-derived compounds that support the antioxidant profile.

Benefits for Your Skin

How It Works

The fermentation process converts complex plant molecules into smaller, more bioavailable compounds. This can enhance penetration and efficacy of the active constituents. Lactobacillus fermentation produces organic acids and peptides that condition the skin and support a healthy skin barrier.

The combination works synergistically: humectants pull water into the stratum corneum, antioxidants prevent oxidative damage to skin cells and collagen, and soothing agents reduce inflammation. Together, these mechanisms aim to improve hydration, resilience, and overall skin comfort.

Clinical Evidence & References

Published research specifically on this exact fermented blend is limited. However, individual components have supportive evidence: licorice root is well-documented for its anti-inflammatory and skin-conditioning effects, whilst citrus polyphenols and botanical ferments are recognised as antioxidants in skincare formulations.

The fermentation process itself is known to enhance the bioavailability and activity of plant compounds, but clinical efficacy data for this particular combination would strengthen confidence in its benefits. Current evidence suggests it is a sensible formulation choice for hydration and antioxidant support, though individual results may vary.

How to Use

This ingredient is typically used as part of a complete skincare routine, usually in essences, toners, serums, or moisturisers. Apply to clean skin and layer with other hydrating or active ingredients as needed. Fermented ingredients are generally well-tolerated, but always perform a patch test if you have very sensitive skin, and introduce new products gradually.

Safety & Precautions

This ingredient is generally well-tolerated across skin types. Fermented plant extracts have a long history of safe use in cosmetics. Those with specific plant allergies (particularly to citrus or licorice) should review the full ingredient list.

Frequently Asked Questions

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