Prebiotic/Probiotic/Postbiotic

Lactobacillus/Rice Ferment Filtrate

INCI: LACTOBACILLUS/RICE FERMENT FILTRATE

Reviewed by Daisy · Last updated 14 Aug 2026

A fermented rice extract that conditions skin and helps maintain moisture

Best For Skin Types

All, Dry, Sensitive, Mature

Addresses

Dryness, Hydration, Barrier repair

Usage Frequency

Daily

What Is Lactobacillus/Rice Ferment Filtrate?

Lactobacillus/Rice Ferment Filtrate is a liquid derived from the fermentation of rice using Lactobacillus bacteria. During fermentation, the bacteria break down rice compounds into smaller, more bioavailable molecules. The result is a filtrate—the liquid portion separated from solids—that contains amino acids, peptides, and fermentation byproducts.

In skincare formulations, this ingredient functions primarily as a skin conditioning agent and film former, helping to soften the skin surface and create a protective layer that can reduce transepidermal water loss.

How It Works

The fermentation process breaks down rice proteins and carbohydrates into smaller molecular fragments. These fragments can be more easily absorbed by or deposited on the skin surface, where they form a thin conditioning film. This film reduces water evaporation from the skin and can improve the appearance of texture by smoothing the outer layer.

The amino acids and peptides present in the filtrate may also provide mild skin conditioning benefits by supporting the skin's natural moisture-binding capacity.

Clinical Evidence & References

Research specifically addressing Lactobacillus/Rice Ferment Filtrate in skincare is limited. However, fermented ingredients as a category have been studied for their potential to improve skin hydration and texture. Some evidence suggests that fermented extracts may contain bioactive compounds that support skin conditioning, though most studies focus on broader fermented botanical categories rather than this specific ingredient alone.

The conditioning and film-forming properties are well-established in cosmetic chemistry, but clinical evidence in humans remains sparse. Most claims about this ingredient rest on its composition rather than robust clinical trials.

How to Use

This ingredient is typically found in serums, essences, toners, and moisturisers. It works well in layered routines—apply it to clean, slightly damp skin before heavier creams to maximise hydration benefits. No specific usage restrictions apply; it can be used daily as part of your regular skincare regime.

Safety & Precautions

Lactobacillus/Rice Ferment Filtrate is generally well-tolerated by most skin types. Those with rice sensitivity or severe fermentation sensitivities should patch test first, though reactions are uncommon.

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