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Healthy Skin Starts in the Gut

A stronger gut barrier means fewer flares

Gut Barrier Eczema Relief System
Gut Barrier Eczema Relief System
Gut Barrier Eczema Relief System
Gut Barrier Eczema Relief System
Gut Barrier Eczema Relief System
Gut Barrier Eczema Relief System
Gut Barrier Eczema Relief System
Gut Barrier Eczema Relief System
Gut Barrier Eczema Relief System
Gut Barrier Eczema Relief System
Gut Barrier Eczema Relief System
Gut Barrier Eczema Relief System
Gut Barrier Eczema Relief System

Gut Barrier Eczema Relief System

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$224 $203
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This inside & out advanced 30-day system is designed to improve weak gut and skin barriers while providing itch and dry skin relief.

The prebiotic + probiotic supplement set helps support skin barrier from the inside by fortifying the gut barrier and its lining, rebalancing the gut microbiome, improving digestion, and increasing skin ceramide production. 

The soap and lotion calm itch, deeply hydrate, help shed dead skin, and restore skin barrier from the outside.

Real Codex Customers

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What's Included

BIA ClearSkin Synbiotic Supplement for Eczema-Prone Skin

BIA ClearSkin Synbiotic Supplement for Eczema-Prone Skin

BIA Eczema Relief Lotion

BIA Eczema Relief Lotion

BIA GutBuilder Prebiotic Supplement (Kids + Adults)

BIA GutBuilder Prebiotic Supplement (Kids + Adults)

Bia Unscented Soap

Bia Unscented Soap

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Before Image Before

Clinical Results

99%

decrease in number of atopic exacerbations in 100% subjects in 8 weeks

93%

decrease in SCORAD in 100% subject in 8 weeks

118%

increase in hydration in 100% subjects in 8 weeks

Open label trial, 32 men and women, aged 18+ with moderate, active atopic dermatitis (average SCORAD=40) over 56 days (Eurofins, Poland, 2025).

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SOOTHE ECZEMA WITHOUT STEROIDS BY BOOSTING GUT & SKIN BARRIER HEALTH WITH THE Gut Barrier Eczema Relief System

Eczema can take a toll with daily discomfort, disrupted sleep, low self-esteem and even depression. 

Did you know that 30-40% of your eczema score can be improved through your gut? That’s why our advanced system addresses eczema from both the inside and outside.

The prebiotic + probiotic supplement duo is designed to soothe eczema from the inside with a healthy gut barrier, a stronger gut lining, better digestion of nutrients and a balanced gut microbiome. [image: https://www.mdpi.com/2072-6643/15/14/3123]

Our soap and lotion* protect and soothe your skin from outside aggression by supporting your skin microbiome while fortifying skin barrier, deeply hydrating, calming itch, and reducing flakiness.


*National Eczema Association Seal of Acceptance

  • Microbiome Friendly Logo

    Microbiome-tested

  • Vegan Society Logo

    Plant-Based

  • Cruely Free Logo

    Cruelty-Free

The Antü Skin Barrier Support Supplement contains a remarkable combination of ingredients to strengthen the skin barrier. The L-histidine alone has been shown to help heal damaged skin, but together with other anti-inflammatory and supportive botanicals make this a truly unique product. The lotion has also been studied in those with sensitive skin, and is packed with active botanicals designed for impaired skin.

- Dr. Peter Lio, MD, Pediatric Dermatologist, Northwestern Medicine

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- Dr. Peter Lio, MD, Pediatric Dermatologist, Northwestern Medicine

For the Bia eczema collection, we have clinical results that conclusively prove the significant treatment synergy of topical and supplements in repairing the gut and skin barriers, as well as alleviating itch.

Professor Philippe Humber MD FAAD

02 / 03
Professor Philippe Humber MD FAAD

Eczema can be associated with a weakened skin barrier, changes in the skin and gut microbiome, and an impaired gut barrier. The Bia supplements and topicals are formulated to support eczema from the inside and out.

Dr. Jessica Maloh

03 / 03
Dr. Jessica Maloh

Frequently Asked Questions

Are these products clinically tested? +

Our claims are not just fluff, they’re facts. We conduct clinical tests and publish the data to prove how our products perform. You’ll see real results in your skin.

Are these products sustainable? +

We minimize the environmental impact of every aspect of our operation. We are focused on being carbon neutral, cleaning plastic in the ocean, and protecting biodiversity.

Are these products internationally compliant? +

Every country has their own cosmetics laws. We comply with those regulations and register with governmental health authorities wherever we are sold.

Are these products patented? +

Our plant-based biotech complexes are not only patented, they’re disruptive: hydration (BiaComplex™), skin barrier protection (AntuComplex™) and our food-grade preservation (PreservX™). We innovate skincare breakthroughs.

Is the supply chain controlled? +

We know what’s in every tube, literally. We control the complete supply chain — from sustainable wild harvesting through pharma-grade clean processes and our airless packaging — to achieve the highest quality possible.

Is the manufacturing process certified? +

We apply current Good Manufacturing Practices (cGMP) to our production process to create consistent high quality and performance as well as prevent contamination.

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