Prebiotic/Probiotic/Postbiotic

Saccharomyces/Grape Ferment Extract

INCI: SACCHAROMYCES/GRAPE FERMENT EXTRACT

Reviewed by Emma · Last updated 2 Jun 2026

A fermented grape extract that conditions and supports skin texture

Best For Skin Types

All

Addresses

Environmental stress, Skin texture

Usage Frequency

Daily

What Is Saccharomyces/Grape Ferment Extract?

Saccharomyces/Grape Ferment Extract is produced by fermenting grape material with Saccharomyces cerevisiae yeast. This fermentation process breaks down grape compounds and generates bioactive metabolites—including polyphenols and other secondary metabolites—that remain in the final extract.

In skincare formulations, this ingredient functions as a skin conditioner. The fermented grape components are thought to contribute antioxidant and potentially skin-conditioning properties to cosmetic products, though it is relatively uncommon in commercial skincare (appearing in roughly 0.1% of products).

How It Works

Fermentation transforms whole grape material into a more bioavailable extract. During this process, yeast releases secondary metabolites and enzymes that further break down grape cell walls, liberating phenolic compounds and other bioactive molecules. These compounds remain suspended in the final extract.

When applied to skin, these fermented components are believed to provide conditioning effects and deliver antioxidant protection. The mechanism mirrors traditional fermented skincare ingredients, where the fermentation step is thought to enhance the bioavailability of beneficial compounds compared to unfermented plant material.

Clinical Evidence & References

Direct clinical evidence specifically evaluating this ingredient's efficacy in skincare is limited. Research on Saccharomyces cerevisiae fermentation of grape material has focused primarily on winemaking applications, demonstrating that fermentation increases the stability of grape pigments and releases phenolic compounds from grape solids.

By extension, these fermentation processes would theoretically enrich the final extract with antioxidant polyphenols; however, evidence supporting specific skin benefits in topical formulations remains unclear. The ingredient is best regarded as a skin conditioner with potential antioxidant merit, pending more direct skincare research.

How to Use

This ingredient is typically included in serums, essences, and creams as part of a broader formulation. As a fermented extract, it works well alongside other hydrating or antioxidant actives. No special application method is required; use it as directed by the product instructions, usually after cleansing and before moisturiser.

Safety & Precautions

Generally well-tolerated in cosmetic formulations. Those with yeast sensitivities or fermented-ingredient reactions should patch test first, though systemic yeast sensitivity is not typically triggered by topical cosmetic use.

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