Calcium Powder Manufacturer for Bulk Supplement Production

Our powder lines run at up to 500,000 units per month, covering stick packs, sachets, jars, and bulk drums. We handle both small-scale pilot runs and full commercial batches. Mixing, blending, and filling are done in humidity-controlled rooms to prevent caking. For calcium carbonate, we use direct compression or roller compaction depending on the dosage form. For citrate and other soluble grades, we adjust the blending time and order of ingredients to maintain flowability.

Every batch starts with a 7-10 day sample cycle. You receive a physical sample with a certificate of analysis, ingredient breakdown, and packing options. Once approved, mass production takes 20-35 working days. We can hold inventory for staged releases if you need to manage cash flow or launch timing.

Calcium powders are rarely standalone. We blend with vitamin D3, K2, magnesium, zinc, or collagen. For flavoured powders, we use natural or artificial flavours, stevia, monk fruit, or sucrose. Particle size matters: a D90 of 100-200 microns gives good mouthfeel without grittiness. We can also produce effervescent calcium powders with citric acid and sodium bicarbonate.

If you are developing a vegan product, we source calcium from algae or plant-based citrates. For organic lines, we use certified calcium carbonate or citrate. Each ingredient is tested for heavy metals, microbials, and potency before blending. We do not use fillers like maltodextrin unless your formula calls for it.

Our facility is GMP-certified and FDA-registered for dietary supplements. We hold ISO 22000 and HACCP, and we can produce halal and vegan batches on dedicated or shared lines with full cleaning validation. Every batch is tested for calcium content, heavy metals (lead, cadmium, arsenic, mercury), and total plate count. We provide a certificate of analysis for each shipment.

For logistics, we ship FOB Shenzhen or Hong Kong. Typical transit times: 25-35 days to US West Coast, 30-40 days to EU ports, 20-30 days to Middle East. We handle export documentation, including health certificates and free sale certificates. MOQs are 1,000 units per SKU for retail bottling, with lower thresholds for pilot runs.

Every calcium powder batch is tested at three stages: incoming raw material, in-process powder, and finished packaged goods. Identity is confirmed by FTIR or HPLC against a reference standard, and potency is assayed by titration for calcium carbonate or HPLC for calcium citrate. Microbial testing covers total aerobic count, yeast and mould, E. coli, and Salmonella, with limits aligned to USP <2021> or your market's pharmacopoeia. Heavy metals (lead, arsenic, cadmium, mercury) are screened by ICP-MS, and particle size distribution is verified by laser diffraction for powder grades.

A Certificate of Analysis (COA) is issued for each batch and includes the product name, lot number, manufacture and expiry dates, tests performed, specification limits, results, and the analyst's signature. Disintegration testing is not applicable to powders but is performed on any tablets or capsules produced from the same blend. We retain samples of every batch for 24 months beyond expiry under controlled temperature and humidity, so a stability or investigation request can be supported without relying on finished stock.

Stability protocols follow ICH Q1A(R2) guidelines. Accelerated conditions (40°C ± 2°C, 75% RH ± 5%) run for six months, with real-time data at 25°C ± 2°C, 60% RH ± 5% for 24 to 36 months depending on the intended shelf life. For calcium powders with vitamin D3 or K2, we also monitor potency loss and moisture uptake at three-month intervals. You receive interim reports at six and twelve months, and a final report at the end of the study.

Batch documentation is compiled into a batch record that includes raw material COAs, weighing and blending records, line clearance checks, in-process control results, packaging and labelling verification, and the finished-product COA. This record is available for your review during audits or upon request. If your market requires a specific format, such as a summary COA for retail partners, we can prepare that from the same underlying data.

Calcium powder can be filled into high-density polyethylene (HDPE) jars, stick packs, sachets, or blister packs if a tablet format is also required. Common fill weights range from 2 g to 30 g per stick pack or jar, and we can run up to 500,000 units per month on powder lines. Jar sizes typically range from 100 cc to 500 cc, with induction seals and child-resistant closures where needed. Stick packs are supplied in cartons of 20 to 30 units, and sachets can be printed with variable data for lot and expiry.

For the US market, labels must include the statement of identity, net quantity of contents, ingredient list, allergen declaration if applicable, and a Supplement Facts panel with serving size, nutrients, and % Daily Value. We also print the lot number and expiry date in a legible format, typically inkjet or laser coding on the base or crimp of the pack. For EU markets, labels follow Regulation (EU) No 1169/2011 and the Food Supplements Directive 2002/46/EC, including nutrition declaration and advisory statements.

Cartons are specified with dimensions, board grade, and print requirements. A typical carton for a 300 cc jar holds 12 units, with a gross weight of 4.5 to 5.5 kg. Pallets are built to 1,200 mm × 1,000 mm or 1,200 mm × 800 mm depending on destination, with a maximum height of 1,800 mm including the pallet. We shrink-wrap and strap each pallet and can apply corner boards for sea freight. Pallet labels include SKU, lot, quantity, and gross weight.

For Amazon FNSKU and retail compliance, we can apply FNSKU labels, poly-bag units, and print carton labels to your specification. We do not manage Amazon seller accounts, but we prepare shipments to the labelling and packing requirements you provide. Retailer-specific requirements, such as Tesco or Walmart vendor standards, are reviewed during the sample stage so that artwork and coding are correct before mass production.

The sample timeline starts with a brief and formulation review, typically 3 to 5 working days, followed by sample production and dispatch within 7 to 10 working days. Samples are provided free of charge for standard formulations, with freight collect or prepaid at cost. If a custom flavour or blend is required, add 5 to 7 working days for development and sensory approval. Sample approval in writing triggers the production window.

Mass production takes 20 to 35 working days after sample approval and receipt of deposit, depending on packaging complexity and line scheduling. MOQ is 1,000 units per SKU, with lower quantities available for pilot runs. We confirm the production slot at order acknowledgement and provide a weekly progress update. For repeat orders with unchanged specifications, the lead time can reduce to 15 to 25 working days.

Air freight is typically 5 to 10 days door to door for samples and small orders, while sea freight takes 25 to 40 days depending on port and routing. We ship from Shenzhen or Hong Kong and can arrange EXW, FOB, or DDP terms. DDP is available for the US, EU, UK, and Australia, with duties and taxes included in the quoted rate. For sea freight, we provide a packing list and container loading photos.

Documents provided with each shipment include the commercial invoice, packing list, bill of lading or airway bill, Certificate of Analysis, Material Safety Data Sheet (MSDS), and a free-sale certificate where required. For plant-based ingredients, a phytosanitary certificate can be arranged if your import authority requests it. Certificates of origin can be issued for preferential tariff treatment under applicable trade agreements. We do not provide guarantees of import clearance, as that depends on your customs broker and local regulations.