What Is D-Mannose?

D-mannose is a naturally occurring simple sugar, the C-2 epimer of glucose, that the body absorbs slowly and excretes largely unchanged in urine. In the urinary tract it works by a physical mechanism: E. coli, the bacterium behind most urinary-tract episodes, uses finger-like FimH lectins to grip the bladder wall, and free D-mannose occupies those lectins so the bacteria are flushed out instead of attaching. That mechanism – no antibiotic action, just anti-adhesion – is what makes D-mannose a mainstay of urinary-health products.

Key Facts at a Glance

• Active content: D-Mannose Powder / Granular
• CAS number: 3458-28-4
• Appearance: White crystalline powder
• Production: Own functional-sugar facility
• Typical serving: 1-2 g per day (2 g used in studies)
• Taste: Mildly sweet, roughly 60% of sucrose
• Packaging: 25 kg drum (custom formats available)
• Shelf life: 24 months in sealed, cool, dry storage

Origin & Sourcing

Produced in our own functional-sugar facility through the epimerization of glucose and subsequent crystallization, which gives direct control over purity, particle size and cost. The result is a white crystalline powder or granular grade with tight assay and moisture control. Food-grade documentation, Kosher and Halal certificates and GMO-free statements are available, and every batch ships with COA.

Key Benefits

• Used in urinary-tract category products; the mechanism is anti-adhesion (a physicochemical property)
• Flushes E. coli before it can attach
• Very low glycemic impact – mostly excreted unchanged
• Mild, clean sweetness suits powders and gummies
• Granular grade for direct-compression tablets
• Own-facility supply for cost and consistency

Applications

Urinary-health powder sticks and sachets, women’s health capsules, gummies, effervescents, pet urinary-health products and beverage mixes. D-mannose is the natural companion to cranberry in urinary formulas, with the two covering complementary mechanisms. Beyond sticks and capsules, D-mannose suits gummies, effervescents and pet urinary products, and it pairs with cranberry and hibiscus in flavored urinary-health lines. Its mild sweetness also reduces the need for added sugars in drink mixes.

Why 2026 Matters

Urinary tract health is one of the fastest-growing women’s-health categories, driven by self-care purchasing and the drive to reduce unnecessary antibiotic use. D-mannose has become the category’s lead ingredient because its mechanism is easy to explain and its clinical signal is direct. Own-facility production matters commercially: mannose supply quality and price volatility are real concerns for brands scaling this category. The category’s growth is structural: recurrent UTI is common, antibiotic-resistance concerns are rising, and self-care channels now carry dedicated urinary-health sections. D-mannose’s clean, sweet taste also makes it one of the easiest functional sugars to formulate. Own-facility production matters because mannose prices have swung with glucose supply; vertical integration gives brands the cost stability they need to commit to a category.

Science Snapshot

Randomized trials show that 2 g of D-mannose daily published trials report lower recurrence rates in women with recurrent urinary-tract episodes; the mechanism confirmed as competitive inhibition of E. coli FimH binding to urothelial mannose receptors. The sugar is absorbed only slowly and most of an oral dose appears in urine within hours, which is exactly the pharmacokinetic profile the mechanism requires. It does not act as an antibiotic and does not disturb gut flora. Pharmacokinetically, mannose absorption is limited and a large share of the dose reaches the bladder intact, which is what makes the anti-adhesion mechanism work. Trials testing 2 g daily in women with recurrent urinary-tract episodes report significantly fewer recurrences versus placebo, and combination studies with cranberry suggest complementary effects. Because mannose acts by physical competition rather than killing bacteria, it does not select for resistance – a key message for antibiotic-stewardship positioning.

Quality & Specifications

• Actives: D-Mannose Powder / Granular
• Appearance: White crystalline powder
• Production: Own functional-sugar facility
• Packaging: 25 kg drums (custom formats available)
• Shelf life: 24 months in sealed, cool, dry storage
• Testing: Assay, moisture, heavy metals, microbiology, ethylene oxide (EtO), aflatoxins, PAH, pyrrolizidine alkaloids (PAs)
• Compliance: Pesticide residue screened to EU MRLs (EC) 396/2005; Proposition 65 (Prop 65) statement and full contaminant documentation on request
• Note: Business-to-business ingredient information only. Not intended to diagnose, treat, cure or prevent any disease.

Safety & Regulatory

Well tolerated at 1-2 g per day. Very high single doses can cause osmotic GI effects. Users tracking glycemic intake should account for the modest contribution – consult a healthcare professional.

Formulation Notes

D-mannose is mildly sweet with a clean taste, so powder sticks and gummies are easy to flavor, and the granular grade compresses directly into tablets. It dissolves quickly in water and pairs with cranberry extract, hibiscus and vitamin C in urinary-health sticks. Standard serving sizes of 1-2 g fit comfortable sachet formats.

How It Compares

• D-mannose vs cranberry: cranberry proanthocyanidins also target bacterial adhesion, through a different mechanism – the two are the standard combination in urinary formulas.
• D-mannose vs antibiotics: mannose is a prevention support, not a treatment – it works by anti-adhesion rather than a drug mechanism and does not kill them, which is exactly why it is positioned for recurrence prevention.
• Powder vs granular: powder suits sticks, beverages and capsules; granules flow and compress for direct-compression tablets.
• D-mannose vs glucose: mannose is the C-2 epimer of glucose but is metabolized very differently – most of it is excreted, giving low glycemic impact.

Frequently Asked Questions (FAQ)

Where is your D-mannose produced?

In our own functional-sugar facility, in powder and granular grades.

Can you provide a COA and third-party test report?

Yes. Every batch ships with a Certificate of Analysis, and third-party testing is available on request.

What is the MOQ and packaging?

Standard packaging is a 25kg drum. Please contact us for current MOQ and sample availability.

What serving is supported by research?

2 g per day is the dose used in the main recurrence-prevention trials, commonly split into two servings.

Is it suitable for low-glycemic formulas?

It has low glycemic impact, but users with diabetes should account for it and consult a healthcare professional.

Can you supply cranberry blends?

Yes. We can arrange blend and pack options combining D-mannose with cranberry and other urinary-health actives.

Is it GMO-free?

Yes. GMO-free documentation and Kosher/Halal certificates are available.

How to Get Started

1. Tell us your format and target dose – capsules, powders, tablets, gummies or beverages.
2. We confirm the matching grade, send the specification sheet and a free sample.
3. Approve the sample and run a trial batch; we lock the COA and lead time.
4. Scale to full production with batch-to-batch consistency guaranteed.