Prebiotic/Probiotic/Postbiotic

Lactobacillus/Pear Juice Ferment Filtrate

INCI: LACTOBACILLUS/PEAR JUICE FERMENT FILTRATE

Reviewed by Daisy · Last updated 14 Aug 2026

A fermented pear extract that conditions skin through probiotic-derived compounds

Best For Skin Types

All, Combination, Oily

Addresses

Dryness, Hydration, Barrier repair

Usage Frequency

Daily

What Is Lactobacillus/Pear Juice Ferment Filtrate?

Lactobacillus/Pear Juice Ferment Filtrate is produced by fermenting pear juice using Lactobacillus bacteria, then filtering the liquid to remove solids. The result is a nutrient-rich filtrate containing organic acids, peptides, and metabolites generated during fermentation.

In skincare, it functions primarily as a skin conditioner—meaning it helps improve skin texture, softness, and overall feel. The fermentation process creates compounds that may support the skin's natural microbiome and provide gentle exfoliation through mild acidity.

How It Works

Lactobacillus fermentation produces lactic acid and other organic acids that gently lower skin pH and encourage natural exfoliation. These compounds are gentler than high-strength chemical exfoliants, making them suitable for regular use.

The ferment filtrate also contains peptides and amino acids that condition the skin and support the stratum corneum (outer layer), helping it retain moisture and maintain a healthy barrier. Some evidence suggests that fermented plant extracts can encourage a balanced skin microbiome, though this effect is not yet fully understood.

Clinical Evidence & References

Research specifically on Lactobacillus/Pear Juice Ferment Filtrate is limited. However, fermented plant extracts and lactic acid more broadly have been studied for their conditioning and mild exfoliating properties, with generally positive results for skin texture and hydration.

The microbiome-supporting claims are promising but require more clinical validation. If you have concerns about a specific skin condition, it is worth patch testing first and consulting a dermatologist if needed.

How to Use

This ingredient is typically found in serums, essences, and hydrating products at low concentrations. It suits daily use in most formulations. Apply to clean skin before moisturiser, or layer it under your regular skincare routine. If combining with other exfoliants (AHAs, BHAs, vitamin C), monitor your skin's response to avoid over-exfoliation.

Safety & Precautions

Generally well-tolerated. Fermented ingredients may cause sensitivity in those with known sensitivities to fermentation byproducts or lactic acid; patch test if you have reactive skin.

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