Prebiotic/Probiotic/Postbiotic

Lactobacillus/Arnica Montana Flower Ferment Filtrate

INCI: LACTOBACILLUS/ARNICA MONTANA FLOWER FERMENT FILTRATE

Reviewed by Emma · Last updated 2 Jun 2026

A fermented plant extract that works to support skin hydration and comfort

Best For Skin Types

All, Dry, Sensitive, Combination

Addresses

Dryness, Hydration, Sensitivity, Redness

Usage Frequency

Daily

What Is Lactobacillus/Arnica Montana Flower Ferment Filtrate?

Lactobacillus/Arnica Montana Flower Ferment Filtrate is a bioactive ingredient created through the fermentation of arnica montana flowers using beneficial lactobacillus bacteria. The fermentation process breaks down plant compounds into smaller, more bioavailable molecules that can be absorbed more effectively by the skin.

This ingredient functions primarily as a humectant, meaning it helps the skin retain moisture by drawing water into the outer layers of the epidermis. The fermented extract also contains metabolites produced during the fermentation process, which may contribute additional skin-conditioning properties beyond simple hydration.

How It Works

As a humectant, this ingredient works by hygroscopic action—it has a molecular structure that attracts and binds water molecules from both the environment and deeper skin layers, drawing them into the stratum corneum (the skin's outermost layer). This increases the skin's water content and improves hydration on a temporary basis.

The fermentation process creates bioactive compounds including organic acids, peptides and other metabolites that may support skin barrier function and comfort. These fermentation byproducts may also have mild antimicrobial or anti-inflammatory properties, though evidence in skincare contexts remains limited.

Clinical Evidence & References

Published clinical data specifically evaluating this combined ingredient is sparse. Most evidence comes from studies on arnica montana extract alone or general fermented botanical extracts, which suggest potential benefits for soothing and antioxidant activity. Fermentation is known to increase bioavailability of plant compounds, but direct efficacy data in cosmetic formulations is limited.

The humectant properties are well-established for similar fermented extracts, making this ingredient a reasonable choice for hydration support. However, individual results will depend on formulation concentration, skin condition and overall skincare routine.

How to Use

This ingredient is best used in hydrating serums, essences, or moisturisers where it can work alongside other hydrating agents like glycerin or hyaluronic acid. It is typically well-tolerated across formulations and can be used daily as part of your regular routine. For best results, apply to damp skin and follow with an occlusivemoisturiser to lock in hydration.

Safety & Precautions

Generally well-tolerated across most skin types. Those with documented arnica sensitivity should avoid this ingredient, though sensitivity is relatively uncommon.

Frequently Asked Questions

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