Prebiotic/Probiotic/Postbiotic

Rice Ferment Filtrate

INCI: RICE FERMENT FILTRATE

Reviewed by Daisy · Last updated 20 Jul 2026

A fermented ingredient that supports skin hydration and collagen integrity

Best For Skin Types

All, Mature, Dry

Addresses

Fine lines, Dryness, Hydration, Loss of elasticity

Usage Frequency

Daily

What Is Rice Ferment Filtrate?

Rice ferment filtrate is a liquid extract derived from fermented rice, produced through a controlled fermentation process. During fermentation, beneficial compounds are broken down and concentrated, creating a filtrate rich in amino acids, peptides, and polysaccharides that can be incorporated into skincare formulations.

In cosmetics, rice ferment filtrate functions as a skin conditioning agent. It is typically included in formulations at low concentrations and is found in a small proportion of skincare products, particularly targeted treatments for the eye area and anti-aging ranges.

How It Works

Rice ferment filtrate works through multiple pathways. The fermentation process concentrates amino acids and peptides, which can be recognised by skin cells and support natural renewal processes. When applied topically, these compounds signal to fibroblasts (the cells responsible for collagen production) to increase collagen synthesis.

Research using advanced imaging techniques suggests the ingredient penetrates beyond the outermost skin layer (stratum corneum) into the deeper dermis within 30 minutes of application. Additionally, the antioxidants present in the filtrate appear to reduce inflammatory markers and oxidative stress, both of which accelerate visible aging.

Clinical Evidence & References

In vitro studies show promising results: rice ferment filtrate combined with sialic acid significantly increased collagen gene transcription and enhanced mRNA stability in fibroblast models. A 12-week clinical trial on an eye cream containing yeast and rice fermentation filtrate (alongside other active ingredients) demonstrated measurable improvements in skin hydration, elasticity, and collagen density when assessed via Corneometer, Cutometer, and ultrasound imaging.

However, these studies involved multi-component formulations rather than the ingredient in isolation, making it difficult to attribute results solely to rice ferment filtrate. Additional research isolating this ingredient's contribution would strengthen confidence in its efficacy.

How to Use

Rice ferment filtrate is most effective when used as part of a consistent skincare routine. It is typically found in eye creams, serums, and targeted anti-aging products. Apply to clean skin morning and evening, allowing time for absorption before applying other treatments. Results tend to develop over weeks of regular use rather than immediately, so patience and consistency are key.

Safety & Precautions

Rice ferment filtrate is generally well-tolerated in cosmetic formulations. As with any new ingredient, a patch test is advisable if you have sensitive skin or known sensitivities to fermented ingredients.

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