Glucomannan Konjac Root extract capsules OEM Manufacturer

Last updated: July 2026

How Konjac Glucomannan Works

Glucomannan is a water-soluble, highly viscous polysaccharide extracted from the tuber of the Konjac plant (Amorphophallus konjac). Its unique chemical structure allows it to absorb up to 50 times its own weight in water, transforming into a dense, natural gel-like matrix within the stomach.

This mechanism provides three distinct, EFSA-compliant physiological benefits:

• Prolonged Fullness (Satiety): The high-viscosity gel slows down gastric emptying, naturally signaling the brain that the stomach is full, which helps reduce spontaneous caloric intake.

• Healthy Glycemic Support: By delaying nutrient absorption, it helps smooth out post-meal blood sugar spikes.

• Optimal Microbiome Support: As a soluble prebiotic fiber, it gently nourishes beneficial gut bacteria, promoting overall digestive regularity.

Why "Capsules" Are the Superior Delivery System

When formulating for Western consumers, product safety and user convenience are paramount. Capsules solve the critical formulation and intake challenges associated with raw glucomannan powder:

Unencapsulated glucomannan powder begins hydrating instantly in the mouth or esophagus if not taken with enough water, posing a serious swallowing hazard. Premium encapsulated solutions—such as those manufactured by Reson—ensure the fiber bypasses the throat safely, releasing only when it reaches the stomach acid.

For active weight management, clinical studies suggest a therapeutic dose of 1 gram (1,000 mg) of glucomannan taken three times daily before meals. Packaging this dense fiber into standard, easy-to-swallow HPMC vegetable capsules allows consumers to meet this exact daily requirement effortlessly, without the mess of measuring spoons.

Our Manufacturing Experience: 

The extremely high absorbency of glucomannan is a double-edged sword. As a manufacturer, our core challenge was: how to prevent capsules from absorbing moisture from the air and sticking together before swallowing, while ensuring rapid release in the stomach?

• Process Control: We use a low-humidity environment for pelleting (relative humidity < 35%) and a special dry granulation process to maintain powder flowability and ensure that the filler weight variation is controlled within ±5%.
• Formulation Optimization Case Study: A US customer reported that their commercially available products had capsules that "clumped together." Our analysis revealed that trace amounts of hygroscopic excipients were mixed into the filler. By adjusting to a minimalist formula of 99% pure glucomannan + 1% silica, and switching to HPMC vegetarian capsules (with even lower water content), the problem was completely solved, helping their customer reduce return rates by 70%.
• Transparency Commitment: We can provide third-party testing reports for each batch of products upon request, including: viscosity (mPa·s), swelling volume (ml/g), heavy metals, and microbial limits.

Frequently Asked Questions.

Q: Is Glucomannan safe for long-term use?

• A: Yes, when taken as directed with adequate water, it is considered safe for most healthy adults. It is a natural fiber, not a drug.

• A: Because it slows the absorption of contents in the stomach, it is recommended to take your other medications or supplements at least one hour before or four hours after taking your Glucomannan capsules.

• A: Absolutely. Konjac root is naturally plant-based, vegan-friendly, and contains virtually zero net carbs, making it an excellent fit for Keto and Low-Carb lifestyles.

• A: The European Food Safety Authority (EFSA) has officially authorized a health claim for Glucomannan, stating that it contributes to weight loss in the context of an energy-restricted diet.

OWN Brand

Intergroup is supplying OEM service for the Well-known brands Reson and Ausreson. Alibaba International Station No.1 supplier, Alibaba International Station Number 1, Alibaba International Station Number one Customized logo is welcome, Packing as your requirement. offering private label

Cusrom Process

01 Contact us 02 Confirm Product Formula 03 Sample Confirmation 04 Deposit Payment 05 Factory Production 06 Product Quallty Inspectlon 07 Balance Payment 08 Dispatch and Delvery

Factory & Exhibition

Private Label design, fast delivery, USA Warehouse, European Warehouse, capsules factory,Softgels factory,tablets factory, pills factory, Gummies factory, Liquid Drops factory,Gum factory,solid beverage factory, customized factory, capsules manufacturer, Softgels manufacturer, tablets manufacturer, pills manufacturer, Gummies manufacturer, Liquid Drops manufacturer,Gum manufacturer,solid beverage manufacturer.

In order to better serve our global customers, we will participate in various large-scale exhibitions.Europe, North America

Certifications

We are a nutritional supplement raw material and nutritional supplement brand OEM manufacturing factory in China with ISO 22000, ISO 9001, HACCP Management certifications, GMP certificate the factory, HALAL, CE, CE-ROHS, Organic, KOSHER, NSF Product certifications.Our product's comprehensive certification standards.

Packaging

We promise to provide high-quality products, but please raise any quality issues within 15 days of receiving the package.

From concept to finished product, we are committed to quality, efficiency, and customer satisfaction. Let us help you bring your product to life!

FAQs

Q: What kind of OEM forms can you supply ?
A: Pre mix powder, Capsules, Tablets, pills, Softgel,drops, Gummy.

Q: What's the pill size?
A: Capsule: 2#,1#,0#, 00#. Tablet: Can customize like 500mg, 1000mg, 1500mg, 2000mg

Q: What are capsule shells made of ?
A: Gelatin,HPMC (Vegan), Enteric gelatin & enteric vegan shells.

Q: Can the formula be customized by our Own Formula?
A: Yes, The formula can be exact customized.

Q: Minimum Order Quantity (MOQ) ?
A: Small quantity sample can be customized according to your requirements. Official order MOQ: 100,000 pieces

Q: Can you supply bottles with private label?
A: Yes, all can be customized.

Q: What kind of certificates can you supply for your OEM capsules / Tablets?
A: Health certificate, Original certificate.