Prebiotic/Probiotic/Postbiotic

Aspergillus Ferment Extract Filtrate

INCI: ASPERGILLUS FERMENT EXTRACT FILTRATE

Reviewed by Kate · Last updated 2 Jun 2026

A fermented extract that helps skin retain moisture and maintain hydration

Best For Skin Types

All, Dry, Combination, Mature

Addresses

Dryness, Hydration, Fine lines

Usage Frequency

Daily

What Is Aspergillus Ferment Extract Filtrate?

Aspergillus Ferment Extract Filtrate is derived from the fermentation of Aspergillus, a common fungal genus. During fermentation, the organism breaks down complex compounds into smaller, bioavailable molecules that can be used in skincare formulations. The filtrate—the liquid portion after solids are removed—contains amino acids, polysaccharides, and other metabolites produced during this process.

In skincare, this ingredient functions primarily as a humectant, meaning it draws moisture from the environment and deeper skin layers into the outer layers of the epidermis, supporting skin hydration and a smoother skin surface.

How It Works

Aspergillus Ferment Extract Filtrate works as a humectant by attracting water molecules to the outer layers of skin. This helps increase skin hydration levels, which can improve skin elasticity and reduce the appearance of fine lines caused by dehydration. The fermentation by-products may also have mild antioxidant or soothing properties, though evidence for these secondary benefits remains limited.

Clinical Evidence & References

Research specifically on Aspergillus Ferment Extract Filtrate in skincare is sparse, and most claims rest on the general understanding of fermented ingredients and humectants. Fermented extracts in skincare have shown promise in some studies for supporting skin barrier health and moisture retention, but direct clinical data on this particular extract is limited.

If you are considering this ingredient for hydration or texture concerns, it is best viewed as a supportive hydrating ingredient rather than a targeted treatment, and results will depend on the overall formulation and your skin's individual response.

How to Use

This ingredient is typically found in serums, essences, toners, and hydrating creams. It works well alongside other humectants such as glycerin or hyaluronic acid, and can be layered into a routine morning or evening. Apply to clean skin before heavier moisturising products to allow absorption.

Safety & Precautions

Aspergillus Ferment Extract Filtrate is generally well-tolerated, though those with fungal sensitivities should check product patch tests before wider use. As with any fermented ingredient, some individuals may find it sensitising if skin is already compromised or inflamed.

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