High bioavailability Iron Bisglycinate Vitamin C capsules manufacturer
Product Overview:
Iron Bisglycinate is a chelated form of iron that offers superior absorption compared to standard iron salts. By pairing it with Vitamin C, we’ve created a synergistic blend that optimizes iron uptake while remaining remarkably gentle on your stomach.
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Efficacy: Health Care Supplement
High bioavailability Iron Bisglycinate Vitamin C capsules manufacturer Details
Last updated: August 2026
| Product Name | Iron Bisglycinate Vitamin C capsules OEM manufacturer |
| Appearance | capsules |
| GMP certified factory | Xi'an ECO Biotech Factory Co., Ltd. Xi'an Henrikang Biotech Co., Ltd. |
| Brand | Reson and Ausreson |
| Specification | 500mg/Cap,1000mg/Cap or as your request |
| Certification | ISO，Halal，HACCP |
| Product benefits | Blood Builder, Boost Energy, Iron Bisglycinate 30mg Iron Plus Vitamin C, Support Immune System |
| Keywords | Iron Bisglycinate Vitamin C capsules Gentle iron with Vitamin C, iron supplement with vitamin C for absorption |
| Storage | Keep in a cool, dry, dark location in a tightly sealed container or cylinder. |
| Shelf Life | 24 Months |
What Makes Iron Bisglycinate Superior to Traditional Iron?
Not all iron supplements are created equal. Inorganic iron salts—such as Ferrous Sulfate—often break down prematurely in the stomach, releasing free iron ions that irritate the mucosal lining and lead to severe digestive distress.
In contrast, Iron Bisglycinate is an organic iron chelate where ferrous iron is bound to two molecules of the amino acid glycine.
Key Biochemical Advantages:
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Protection Through the Stomach: The amino acid chelate ring protects the iron molecule from reacting with dietary inhibitors (like phytates and tannins) or stomach acid.
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Neutral Electrical Charge: Because it remains intact during gastric transit, it passes smoothly into the small intestine where it is absorbed via amino acid transport pathways rather than standard metal ion channels.
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Gentle on Digestion: Clinical trials demonstrate that Iron Bisglycinate significantly reduces rates of constipation, bloating, and dark stools compared to conventional ferrous sulfate.
Why Add Vitamin C?
Formulating Iron Bisglycinate alongside Vitamin C creates a powerful biochemical synergy that optimizes total elemental iron uptake:
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pH Optimization: Vitamin C maintains an acidic micro-environment in the digestive tract, keeping iron in its soluble ferrous ($Fe^{2+}$) state, which is far more absorbable than the insoluble ferric ($Fe^{3+}$) state.
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Enhanced Intestinal Transport: Vitamin C acts as a electron donor, facilitating the active uptake of iron across the intestinal enterocyte membrane.
Formulations like Reson Iron Bisglycinate Vitamin C Capsules utilize precise ratios of Vitamin C to ensure every milligram of elemental iron achieves maximum cellular bioavailability.
| OEM Service | ||||
| We offer OEM services, please contact us for more information>> | ||||
| Product Type | Capsules,Softgels,Tablets,Gummies,Liquid Drops,Gum,solid beverage and other customized products | |||
| Packaging | Bottles, Bags, Bulk, Blister packs, Custom | |||
| Formulas | Standard formulas or custom formulas | |||
| OEM service | Support OEM&ODM Custom service,Different Formula，Flavors, Shapes，Bottle ，Color | |||
The Capsule Advantage: Precision, Stability, and Clean Label
For wholesale buyers, supplement distributors, and consumers, choosing encapsulated powders over traditional hard tablets or liquid drops provides crucial operational and lifestyle benefits:
Liquid iron drops often leave an unpleasant, lingering metallic taste in the mouth and can stain teeth over time. Capsules completely seal the active raw materials, ensuring a smooth, neutral taste profile.
Hard pressed tablets require heavy synthetic binders, lubricants, and chemical coatings to hold their shape. Ausreson Iron Bisglycinate Capsules utilize clean, plant-based HPMC (Vegetarian/Vegan) capsule shells, delivering pure powder without unwanted excipients or artificial dyes.
Capsules dissolve rapidly in gastric fluids within minutes, allowing the chelated iron and Vitamin C complex to enter the upper intestine promptly for steady absorption.
Technical Standard & Quality Benchmarks
When sourcing white-label or custom OEM supplement formulations, verifying ingredient quality and testing standards is essential for market success in the US and EU:
| Quality Parameter | Premium Chelated Capsules (e.g., Reson / Ausreson) | Standard Ferrous Sulfate Tablets |
| Iron Source | Ferrochel™ / Pure Iron Bisglycinate Chelate | Ferrous Sulfate / Ferrous Fumarate |
| Absorption Rate | Up to 4x higher bioavailability | Low absorption; high unabsorbed residue |
| Gastrointestinal Tolerability | Excellent (Non-constipating, low nausea) | Poor (High incidence of cramps & constipation) |
| Capsule Shell | Vegan HPMC / Vegetarian Hydroxypropyl | Synthetic Film Coated Pressed Tablet |
| Synergistic Actives | Bio-available Ascorbic Acid (Vitamin C) | Often missing or minimal dosage |
| Compliance & Safety | cGMP, Non-GMO, Heavy Metals Tested (ICP-MS) | Variable raw material sourcing |
FAQ:
Q1: Will Iron Bisglycinate turn my stool black?
- Yes, this is a normal and harmless side effect of iron supplements. However, Iron Bisglycinate is less likely to cause the "hard" stools associated with constipation.
Q2: Is this product suitable for Vegans?
- Our capsules are 100% Vegan and Gluten-Free, meeting the "Clean Label" standards popular in the EU and North American markets.
Q3: Can I take this during pregnancy?
- Iron requirements increase significantly during pregnancy. While Iron Bisglycinate is often recommended by doctors for its gentleness, always consult your OB-GYN before starting a new supplement.
Q4: How does it compare to Ferrous Sulfate?
- Studies show that Iron Bisglycinate is up to 4x better absorbed than ferrous sulfate and results in significantly fewer gastrointestinal complaints.
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.
