Vitamin C Effervescent Manufacturer for Global Brands

Our Guangdong facility operates two dedicated effervescent compression lines with a combined capacity of 1.2 million tablets per day. We control temperature at 20–24°C and relative humidity below 25% RH throughout production, blending and packaging. This prevents premature acid-base reactions that cause crumbling or staining. Tablets are produced on rotary presses with force feedback, targeting a hardness of 80–120 N. We run in-process checks every 30 minutes for weight variation, thickness and disintegration time. Disintegration typically completes in 60–90 seconds in 200 ml of water at 20°C.

Packaging options include PP tubes, aluminium tubes, blister packs and sachets. We fill tubes from 10 to 20 tablets. Blister lines run 6 to 12 tablets per card. Secondary packaging covers cartons, labels and leaflet insertion. For brands scaling from pilot to full production, we hold raw material safety stock for 60 days. This shortens repeat order lead times to 18–25 working days.

We source ascorbic acid from EU and Chinese suppliers with documented purity of 99.0–100.5%. Each batch is tested for heavy metals, residual solvents and microbial limits before release. The effervescent base uses citric acid and sodium bicarbonate in a 1:1.2 molar ratio, with sodium carbonate to adjust pH to 3.8–4.2 in solution. This gives a clean, mildly tart taste without chalkiness. Sweetener systems include sucralose, stevia or a sugar-free blend. We can also produce with 2–4 g of sugar per tablet for traditional profiles.

Common co-actives include zinc gluconate at 5–15 mg, vitamin D3 at 400–1,000 IU, elderberry extract at 100–300 mg and rosehip powder at 50–200 mg. Flavours range from orange, lemon and berry to tropical and cola. We run stability tests at 40°C/75% RH for 3 months and 25°C/60% RH for 24 months. These studies confirm less than 10% ascorbic acid loss over shelf life. We also test for tablet swelling and colour drift in tube packaging.

EUPHM holds GMP, ISO 22000 and HACCP certifications. Our facility is FDA-registered for dietary supplements. We provide Certificate of Analysis, MSDS, allergen statements and flow charts for each batch. For halal claims, we maintain certified supply chains for gelatine-free and alcohol-free formulations. Organic certification is available under USDA NOP or EU organic standards when using certified ascorbic acid. We do not claim FDA approval of any product.

We ship from Shenzhen and Hong Kong ports. Air freight samples arrive in 3–5 days to the US and EU. Sea freight for full orders takes 18–28 days to Los Angeles, 25–35 days to Rotterdam and 12–18 days to Jebel Ali. We handle documentation for customs, including commercial invoice, packing list, bill of lading and certificate of origin. DDP terms are available for first orders to simplify import for new brands.

Every batch of Vitamin C effervescent tablets is tested at three stages: incoming raw material, in-process granulation and finished tablet. Ascorbic acid identity and potency are confirmed by HPLC against a reference standard, with a specification of 95.0 to 105.0 percent of label claim. Microbial testing covers total aerobic count, yeast and mould, E. coli and Salmonella, with release limits of under 1,000 cfu/g for total aerobes and absence of pathogens in 10 g. Heavy metals are screened by ICP-MS for lead, arsenic, cadmium and mercury, each below 1 ppm. Disintegration is checked in water at 20 degrees Celsius, with a target of under 5 minutes for a 3.5 g tablet.

In-process controls run every 30 minutes during compression: tablet weight, hardness (target 60 to 120 N), thickness and friability. Effervescent tablets are sensitive to humidity, so the compression room is held below 25 percent RH and 25 degrees Celsius, with dew point monitoring logged hourly. A batch is only released when all finished-tablet results meet specification. Any out-of-specification result triggers a documented investigation before release.

The certificate of analysis (COA) issued with each batch lists batch number, manufacturing date, expiry date, tablet weight, active content, microbial results, heavy metals, disintegration time and appearance. It also states the specification and the test method for each parameter. A retention sample of at least 200 tablets per batch is stored under controlled conditions for the full shelf life plus six months. Stability is monitored at 25 degrees Celsius and 60 percent RH for 24 months, with additional accelerated data at 40 degrees Celsius and 75 percent RH for six months to support label claims.

Documentation is available in English and can be translated for your market. We provide the batch manufacturing record summary, raw material COAs and packaging records on request. For markets requiring a free-sale certificate, we arrange it through the local authority, typically within 10 to 15 working days. This documentation package is designed to support your own regulatory filing and retailer audits.

Vitamin C effervescent tablets are packed in three main formats: PP tubes with a desiccant stopper, aluminium blister strips, or single-dose sachets. Tube formats commonly hold 10, 20 or 30 tablets of 3.5 g, with a foil seal and child-resistant cap optional. Blister strips are typically 10 tablets per strip, with 2 to 10 strips per carton. Sachets are available as stick packs of 4 g to 5 g for single-serve use. All primary packaging must provide a moisture barrier; we specify WVTR (water vapour transmission rate) limits for each format and test sealed tubes at 40 degrees Celsius and 75 percent RH for six months.

For the US market, we set up FDA dietary-supplement labels with the required elements: statement of identity, net quantity, supplement facts panel with serving size and percent daily value, ingredient list, directions for use, and the manufacturer or distributor address. We also include allergen statements where applicable and the required 'Keep out of reach of children' warning. Lot number and expiry date are inkjet-coded on the tube, carton and shipper, with a minimum character height of 2 mm. We can print your FNSKU barcode or retail barcode on the carton and provide a label proof for approval before production.

Carton specifications are agreed per SKU: typical retail carton is 60 x 60 x 120 mm for a 20-tablet tube, with 24 tubes per shipper carton. Shipper cartons are printed with lot, expiry, quantity and handling symbols. Pallet configuration is standard 1,200 x 1,000 mm or 1,200 x 800 mm, with 48 to 60 shipper cartons per layer and up to 5 layers, giving 240 to 300 cartons per pallet. We can shrink-wrap and label pallets to your warehouse requirements.

For Amazon and other e-commerce channels, we can apply FNSKU labels, poly-bag the retail unit where required, and prepare cartons for direct-to-fulfilment-centre delivery. We do not print marketplace-specific claims without your written approval. All artwork is checked against your market's labelling rules before printing, and we retain a signed proof for traceability.

The standard MOQ for Vitamin C effervescent tablets is 1,000 units per SKU for retail bottling. Pilot runs of 1,000 to 2,000 units are available for market testing, with a separate pilot fee that is credited against the first mass-production order. Sampling takes 7 to 10 working days after formula and packaging confirmation. Samples are sent by courier at your cost, and we provide a proforma invoice and packing list with the shipment.

Mass production runs 20 to 35 working days after sample approval and receipt of deposit. This window covers raw material release, granulation, compression, packaging and quality release. If your order includes custom printed tubes or cartons, add 10 to 15 working days for print production. We confirm the production schedule in writing at order acceptance and provide weekly progress updates.

We ship under EXW, FOB Shenzhen or Hong Kong, and DDP for selected destinations. Air freight is typically 5 to 8 days door to door and is suitable for pilot orders or urgent replenishment; sea freight is 25 to 40 days depending on destination port and is more economical for full containers. We provide a commercial invoice, packing list, bill of lading or airway bill, COA, MSDS and, where required, a free-sale certificate. Phytosanitary certificates are not applicable to these products. For DDP shipments, we handle import clearance and delivery to your named address, with duties and taxes included in the quoted price.