Prebiotic/Probiotic/Postbiotic

Lactobacillus/Grape Juice Ferment Filtrate

INCI: LACTOBACILLUS/GRAPE JUICE FERMENT FILTRATE

Reviewed by Kate · Last updated 14 Aug 2026

A fermented ingredient that conditions and supports skin hydration

Best For Skin Types

All, Sensitive, Dry

Addresses

Dryness, Hydration, Sensitivity

Usage Frequency

Daily

What Is Lactobacillus/Grape Juice Ferment Filtrate?

Lactobacillus/Grape Juice Ferment Filtrate is produced by fermenting grape juice using Lactobacillus bacteria. The filtrate—the liquid portion after fermentation—is then used in skincare formulations. During fermentation, the bacteria break down components in the grape juice, creating beneficial compounds and metabolites.

In skincare, this ingredient functions primarily as a skin conditioning agent. It is typically used in small concentrations within moisturisers, serums, and essences to support the skin's moisture content and overall hydration status.

How It Works

Lactobacillus fermentation breaks down grape compounds into smaller, more bioavailable molecules. These include amino acids, organic acids, and polyphenolic compounds that can penetrate the skin more readily than their unfermented counterparts.

The ingredient hydrates by drawing moisture into the outer skin layers and conditioning the skin surface, creating a smoother appearance. The antioxidants present may also help neutralise free radicals that contribute to skin ageing and irritation.

Clinical Evidence & References

Research specifically on Lactobacillus/Grape Juice Ferment Filtrate in skincare is limited. Most evidence comes from studies on fermented plant extracts and grape polyphenols in general, which suggest antioxidant and skin-conditioning benefits.

While fermentation is thought to improve ingredient bioavailability and tolerability, robust clinical data comparing this specific fermented filtrate to non-fermented alternatives is not widely published. It appears to be safe and generally well-tolerated, though individual patch testing is always sensible for sensitive skin.

How to Use

This ingredient is typically found in moisturisers, essences, and serums at low concentrations. Use it as part of your regular hydrating routine—morning or evening, or both. Layer it under or mix it with other hydrating products for enhanced effect. No special precautions are needed, though as with any new ingredient, introduce it gradually if you have reactive skin.

Safety & Precautions

Generally well-tolerated across most skin types. As a fermented ingredient, it is unlikely to cause irritation, though those with severe sensitivities to fermented foods should patch test first.

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