Prebiotic/Probiotic/Postbiotic

Monascus/Dioscorea Japonica Root Ferment Extract Filtrate

INCI: MONASCUS/DIOSCOREA JAPONICA ROOT FERMENT EXTRACT FILTRATE

Reviewed by Rosie · Last updated 20 Jul 2026

A fermented extract with purifying and conditioning properties for balanced skin

Best For Skin Types

All, Oily, Combination, Acne-prone

Addresses

Acne, Oil control, Texture

Usage Frequency

Daily

What Is Monascus/Dioscorea Japonica Root Ferment Extract Filtrate?

Monascus/Dioscorea Japonica Root Ferment Extract Filtrate is derived from the fermentation of Dioscorea japonica (Japanese yam) root using Monascus fungi. This fermentation process breaks down the plant material, creating a filtrate rich in bioactive compounds including pigments, organic acids, and polysaccharides.

In skincare, this ingredient functions primarily as an antimicrobial and skin conditioner. The fermentation byproducts help to support skin microbiome balance whilst also improving skin texture and hydration through its conditioning properties.

How It Works

Fermentation concentrates bioactive compounds from the plant material, including organic acids and secondary metabolites that have natural antimicrobial properties. These compounds can help regulate the skin's bacterial flora without disrupting the beneficial microbiome.

The ingredient also acts as a humectant and skin conditioning agent, drawing moisture into the outer layers of the skin and improving its overall feel and appearance. The polysaccharides and amino acids from fermentation support the skin's natural moisture barrier.

Clinical Evidence & References

Research specifically on this ferment extract is limited in published literature. However, fermented plant extracts and Monascus-derived compounds have been studied for their antimicrobial and antioxidant properties in broader skincare and food safety contexts.

The ingredient is used in cosmetic formulations based on its historical use in Asian skincare traditions and its functional profile as a fermented extract. More targeted clinical studies on this specific filtrate would help clarify its efficacy in common skin concerns.

How to Use

This ingredient is typically found in essences, toners, serums, and lightweight moisturisers. It can be used daily as part of your regular routine. As with any new ingredient, introduce it gradually to monitor how your skin responds, particularly if you have sensitive or reactive skin.

Safety & Precautions

Generally well-tolerated in cosmetic concentrations. Those with sensitivity to fermented ingredients or fungal-derived products should patch test first.

Frequently Asked Questions

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