Prebiotic/Probiotic/Postbiotic

Arthrobacter/Hyaluronic Acid Ferment Filtrate

INCI: ARTHROBACTER/HYALURONIC ACID FERMENT FILTRATE

Reviewed by Kate · Last updated 2 Jun 2026

Also known as: Arthrobacter/hyaluronic Acid Ferment Filtrate

A fermented hyaluronic acid derivative that conditions and hydrates the skin

Best For Skin Types

All, Dry, Sensitive, Mature

Addresses

Dryness, Hydration, Barrier repair

Usage Frequency

Daily

What Is Arthrobacter/Hyaluronic Acid Ferment Filtrate?

Arthrobacter/Hyaluronic Acid Ferment Filtrate is a bioactive ingredient created through the fermentation of hyaluronic acid using Arthrobacter bacteria. This process breaks down hyaluronic acid into smaller molecular fragments, which may enhance penetration and bioavailability compared to the parent molecule.

In skincare formulations, it functions as an emollient and skin conditioning agent. It is designed to support the skin's moisture retention and may help improve the overall feel and hydration of the skin barrier.

How It Works

Hyaluronic acid is a natural humectant—a molecule that draws water from the environment and deeper skin layers to the surface. The fermentation process reduces the molecular weight of hyaluronic acid, creating smaller fragments that may penetrate more effectively into the epidermis.

Once absorbed or distributed in the skin, these fragments work to bind water molecules, supporting skin hydration and maintaining the plumpness and suppleness of the skin. This mechanism helps sustain the skin's moisture balance and supports a healthier-looking appearance.

Clinical Evidence & References

Evidence specifically evaluating Arthrobacter/Hyaluronic Acid Ferment Filtrate in isolation is limited. However, hyaluronic acid itself has substantial research supporting its hydrating and skin-conditioning properties, and fermentation technology is generally thought to enhance bioavailability and penetration of active ingredients.

The combination of these factors suggests potential benefit, though dedicated clinical studies on this particular ferment would provide clearer evidence of its efficacy compared to standard hyaluronic acid or other hydrating agents.

How to Use

This ingredient is typically found in serums, essences, and moisturisers and can be used as part of your daily routine. It pairs well with other hydrating or barrier-supporting ingredients. Apply to damp skin or layer under an occlusive moisturiser to optimise hydration. No special preparation or sequencing is required.

Safety & Precautions

Generally well-tolerated across skin types. Fermented ingredients may occasionally trigger sensitivity in those with bacterial fermentation sensitivities, so patch test if you have known sensitivities to fermented ingredients.

Frequently Asked Questions

From the Clinic

Not sure what your skin actually needs?

Two minutes, a few questions, and we’ll point you at what matters — no guesswork.

Take the skin quiz

Learn More About Skincare Ingredients

Explore our comprehensive ingredient glossary to understand what's in your products.

Browse All Ingredients

Authorised Stockist

Official UK retailer

Tracked Delivery

Free UK shipping over £50

5 Star Rating

Trusted by thousands

Expert Advice

Free consultations