Product Overview
Calcium L-Threonate is a specialized form of calcium derived from the salt of L-Threonic acid, a natural metabolite of Vitamin C. Unlike traditional calcium salts, Calcium L-Threonate is recognized for its exceptional absorption rate and its unique role in supporting the bone’s collagen matrix.
SRBio Calcium L-Threonate is manufactured to a minimum 98% purity, providing a highly soluble, neutral-tasting powder. It is the premier choice for manufacturers looking to develop next-generation bone health supplements that go beyond basic mineral supplementation.
Technical Specifications
| Parameter | SRBio Standard Specification | Test Method |
| Chemical Name | Calcium L-Threonate | HPLC / Titration |
| CAS Number | 70753-61-6 | N/A |
| Purity (Assay) | ≥98.0% | HPLC |
| Calcium Content | 12.0% – 14.0% | ICP-OES |
| Loss on Drying | ≤ 1.0% | Vacuum Oven |
| Heavy Metals (Pb) | ≤ 0.5 ppm | ICP-MS |
| Appearance | White Crystalline Powder | Visual |
Key Advantages
1. Exceptional Bioavailability (95%+)
Calcium L-Threonate is highly water-soluble and utilizes passive diffusion to enter the bloodstream. Clinical studies on this specific molecular form indicate an absorption rate significantly higher than calcium carbonate or citrate, requiring no Vitamin D for initial intestinal uptake.
2. Dual-Action: Bone & Collagen Support
Unique to the “Threonate” form, this ingredient does more than provide elemental calcium. L-Threonate is a key metabolite that supports the natural synthesis of Vitamin C-dependent collagen. By strengthening the collagen matrix (the “framework” of the bone), it provides comprehensive structural integrity for the skeletal system.
3. High Gastrointestinal Tolerance
Because it does not require stomach acid for dissolution and has a neutral pH, SRBio Calcium L-Threonate is exceptionally gentle on the digestive system. It eliminates common side effects associated with high-dose calcium, such as bloating, gas, or constipation.
Manufacturing Excellence
Advanced Synthesis & Purification
We utilize a controlled reaction between L-Ascorbic Acid and Calcium sources to yield a highly pure, stable crystalline lattice. This ensures the removal of unreacted precursors and results in a clean-label ingredient with excellent flowability for manufacturing.
Quality & Safety Compliance
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Molecular Identity: Every batch is verified via FTIR to ensure the correct L-Threonate chelation structure.
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Contaminant Control: Rigorous testing for heavy metals (Pb, As, Cd, Hg) ensures compliance with USP <232> and Prop 65.
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Allergen-Free: Produced in a facility free from soy, gluten, and dairy; 100% Vegan and Non-GMO.
Applications
SRBio Calcium L-Threonate is designed for premium, science-led nutrition brands:
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Advanced Bone Health Capsules: The “gold standard” for products targeting long-term skeletal density and joint structural support.
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Fortified Drink Mixes: 100% water solubility and neutral taste allow for high-dose inclusion without impacting the flavor profile.
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Active Aging Formulations: Pairs perfectly with Vitamin K2 (MK-7) and Magnesium for a multi-pathway approach to structural wellness.
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Nutraceutical Tablets: High bulk density allows for easy tableting with minimal excipients.
Technical Partnership Program
Custom Formulation & Global Logistics
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Synergistic Blends: Expertise in formulating Calcium L-Threonate with Liposomal Vitamin C or Manganese for enhanced connective tissue support.
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Supply Chain Security: Large-scale production capacity with pre-positioned stock in global hubs for rapid fulfillment.
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Compliance Documentation: Full access to COA, MSDS, and manufacturing flowcharts for your quality audits.
Request a Sample
Elevate your bone health category with the advanced science of SRBio Calcium L-Threonate.
Contact our technical team for a 50g / 500g trial sample and a complete product dossier.
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Email: admin@plantextractssr.com
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Certifications: cGMP, ISO 22000, Halal, Kosher, Vegan Verified.
Shipping & Packing Information
OEM SERVICE
We offer all-inclusive product development from consultation to delivery.
We make product proposals based on the customer’s requirements, from small to large lots.
