We are celebrating National Eczema Month!

Enjoy 20% OFF all eczema products with code ECZEMA20.

AND receive a bonus gift when you purchase any eczema bundle.

We are celebrating National Eczema Month!

Enjoy 20% OFF all eczema products with code ECZEMA20.

AND receive a bonus gift when you purchase any eczema bundle.

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Happy Baby = Strong Barrier

Itch-free, peaceful sleep

BIA GutBuilder Prebiotic Supplement (Kids + Adults)
BIA GutBuilder Prebiotic Supplement (Kids + Adults)
BIA GutBuilder Prebiotic Supplement (Kids + Adults)
BIA GutBuilder Prebiotic Supplement (Kids + Adults)
BIA GutBuilder Prebiotic Supplement (Kids + Adults)
BIA GutBuilder Prebiotic Supplement (Kids + Adults)
BIA GutBuilder Prebiotic Supplement (Kids + Adults)
BIA GutBuilder Prebiotic Supplement (Kids + Adults)
BIA GutBuilder Prebiotic Supplement (Kids + Adults)
BIA GutBuilder Prebiotic Supplement (Kids + Adults)
BIA GutBuilder Prebiotic Supplement (Kids + Adults)
BIA GutBuilder Prebiotic Supplement (Kids + Adults)
  • Eczema-prone
  • Gut Health

BIA GutBuilder Prebiotic Supplement (Kids + Adults)

$55
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Bia GutBuilder prebiotic contains a comprehensive formulation of naturally derived prebiotic fibers, amino acids, antioxidants and superfoods to help digestion, increase immunity, support beneficial gut bacteria, fortify the intestinal barrier, increase collagen production, and soothe the lining of the gut.

This prebiotic is the foundation for a strong, healthy gut, and should be started at least one month prior to any probiotic regimen.

Ages: 3+ (see directions for 3-6 years and 6+)

Real Codex Customers

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Clinical Results

93%

decrease in SCORAD in 100% subject in 8 weeks

40%

decrease in water loss (TEWL) in 100% subjects in 8 weeks

23%

decrease in skin roughness in 81% 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). Used with Bia Eczema Relief Lotion, Bia Unscented Soap, Bia ClearSkinProbiotic as a system.

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Reset and Improve Gut health with BIA GutBuilder Prebiotic Supplement (Kids + Adults)

You can think of prebiotics as food for the microorganisms in your gut. They serve an important role because when the right bacteria are fueled, they can support the gut lining, reduce inflammation, metabolize nutrients, and through the skin-gut-brain-microbiome axis, may support skin health, brain health, and mental health. They help your gut wall to absorb critical nutrients and your gut microbiome to synthesize key vitamins.

Prebiotics selectively increase beneficial bacteria such as Bifidobacteria and Lactobacillus species. These microbes produce short-chain fatty acids (SCFAs) like butyrate, propionate, and acetate. [image, see reference DOI: 10.5772/51248]

SCFAs help strengthen the intestinal barrier, preventing "leaky gut," which is associated with translocation of endotoxins (e.g., LPS) into the bloodstream — a trigger for chronic low-grade inflammation. SCFAs also regulate T-regulatory cells and downregulate pro-inflammatory cytokines (like IL-6, TNF-α), which can benefit conditions like eczema, rosacea, psoriasis and acne.

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

01 / 03
Dr. Jessica Maloh

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

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

03 / 03
- Dr. Peter Lio, MD, Pediatric Dermatologist, Northwestern Medicine

Frequently Asked Questions

What are the benefits to using the BIA GutBuilder Prebiotic Supplement (Kids + Adults)? +

Bia Gutbuilder has a multi-functional array of gut and overall health benefits:

  • Help digestion, bile flow, and intestinal motility
  • Support beneficial gut bacteria
  • Fortify the intestinal barrier and cellular tight junctions
  • Soothe the lining of the gut while protecting the mucous membranes, and
  • Increase collagen production
What are the key actives? +

Bia GutBuilder prebiotic has a complex and multi-functional blend of:

  • Tight junction supporting amino acid (l-glutamine)
  • Microbiome modulators (resistant potato starch & oligosaccharides from chicory and corn-derived xylans)
  • Soluble & insoluble fibers (marshmallow & aronia pomace)
  • Superfoods for gastric function (artichoke, pomegranate & ginger), and
  • Antioxidants (quercetin, acai, acerola, camu camu & mangosteen)
What are the customer survey results? +

In self-assessments during our consumer evaluation study:

  • 98% liked the texture and taste
  • 90% said eczema improved

Customer reviews

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