Vitamin C Tablet Manufacturer for Your Brand

EUPHM operates rotary tablet presses with output up to 500,000 tablets per shift. We run direct compression and wet granulation, depending on the vitamin C source and release profile. For 500mg ascorbic acid tablets, typical hardness is 8-12 kp and friability stays below 0.8 percent. Film coating adds 2-3 percent weight and reduces moisture uptake. Bottling lines handle 60, 90, 120 and 180 count HDPE or PET packs with induction seals and child-resistant caps. Blister options include 10, 20 and 30 count cards.

Changeover between SKUs takes 4-6 hours, including hopper and tooling cleaning. We schedule pilot runs of 1,000-2,000 units for formula and packaging validation before mass production. Line capacity supports 15-20 million tablets per month across two shifts. For sustained-release vitamin C, we use a cellulose matrix and verify release at 1, 2, 4 and 6 hours. In-process checks cover weight variation, thickness, hardness and disintegration every 30 minutes.

Vitamin C tablets can be built around ascorbic acid, sodium ascorbate or calcium ascorbate. Ascorbic acid gives 500mg or 1000mg elemental vitamin C per tablet but is acidic; sodium ascorbate is buffered and suits sensitive stomachs. We can add rose hips, acerola, bioflavonoids or zinc. Excipients include microcrystalline cellulose, stearic acid, magnesium stearate and silicon dioxide. For a clean-label claim, we can compress with only vitamin C and cellulose, though tablet size may increase to 12-13mm.

Sustained-release vitamin C typically uses 500mg or 1000mg with a hydroxypropyl methylcellulose matrix. Chewable vitamin C tablets use sorbitol, mannitol and natural flavours, with 250mg or 500mg per tablet. Effervescent vitamin C is also available at 1000mg in tubes of 10-20. We test every incoming lot for assay, heavy metals and microbial limits. Vitamin C potency is verified at 95-105 percent of label claim. Overages of 5-10 percent are added to cover degradation over 24-month shelf life.

EUPHM is an FDA-registered facility and holds GMP, ISO 22000 and HACCP certifications. We provide a certificate of analysis per batch, covering assay, disintegration, hardness and microbiological tests. For EU and UK buyers, we can supply documentation for novel food and health claim reviews. Halal certificates are available for vitamin C tablets with no animal-derived excipients. Organic certification is possible for acerola-based tablets if the ingredient supply chain holds or EU organic status.

Shipping runs from Shenzhen and Hong Kong ports. Air freight for samples takes 3-5 days to the US or EU. Sea freight for full orders takes 18-25 days to the US West Coast, 25-35 days to Europe, and 12-18 days to the Middle East. We pack bottles in cartons of 24-48 units, with palletisation for container loads. Lead time for mass production is 20-35 working days after deposit and artwork approval. Payment terms are 30 percent deposit, 70 percent before shipment.

Every vitamin C tablet batch is tested against a written specification before release. Incoming ascorbic acid or sodium ascorbate is sampled for identity by FTIR and assay by titration, with a minimum 99.0% potency requirement for raw material acceptance. During compression, in-process checks cover tablet weight variation (target ±5%), hardness (typically 8-12 kp for 500mg tablets), thickness and friability (below 1.0% after 100 drops). Coated tablets receive an additional appearance and coating uniformity check at the start, middle and end of each compression run.

Finished tablets are sent to an accredited third-party laboratory for the full release panel: identity, potency (label claim 95.0-105.0%), microbial limits (total aerobic count below 1,000 cfu/g, absence of E. coli and Salmonella), heavy metals (lead below 3 ppm, arsenic below 2 ppm, cadmium below 1 ppm, mercury below 0.1 ppm) and disintegration time (uncoated tablets typically under 15 minutes, film-coated under 30 minutes). Sustained-release formats are additionally tested for dissolution profile at 1, 3 and 6 hours to confirm the release curve matches the approved formula.

The certificate of analysis issued with each batch lists the product name, batch number, manufacturing date, expiry date, specification references, test methods, results and pass/fail status, signed by the QC manager. Retention samples of every batch are stored under labelled conditions for the full shelf life plus 12 months, so a retained sample can be re-tested if a market complaint arises. Stability protocols follow ICH Q1A(R2) conditions: 25°C/60% RH for long-term and 40°C/75% RH for accelerated, with testing at 0, 3, 6, 9, 12, 18 and 24 months to support a 24-month shelf life claim.

Batch records are retained for five years and can be shared with your regulatory consultant under a quality agreement. If your market requires a specific pharmacopoeial method, such as USP or EP assay, state this at quotation stage so the release specification is written accordingly. Deviations are documented and closed before the batch is released, and out-of-specification results trigger a formal investigation with a written report available to the buyer.

Vitamin C tablets ship in high-density polyethylene bottles from 60cc to 500cc, with induction-sealed necks and child-resistant or standard caps depending on market rules. Blister options include PVC/PVDC and alu-alu for moisture-sensitive sustained-release formulas, in 10, 20 or 30 tablets per blister. Stick packs and sachets are available for effervescent or powder formats at 2-5g fill weights. Bottle labels are applied at 100-250 units per minute, with lot number and expiry date inkjet-coded on the label and bottle base before cartoning.

For US-bound products, labels must carry the statement of identity, net quantity, supplement facts panel with serving size and percent daily value, other ingredients list, directions, warnings, and the manufacturer or distributor name and address. We can lay out the supplement facts panel from your formula data, but final label compliance review remains the brand owner's responsibility. EU labels require nutrition declaration per 100g and per portion, allergen statements where applicable, and a best-before date; we adjust the date format to DD/MM/YYYY or MM/YYYY as your market requires.

Cartons are standard single-wall corrugated, typically 12, 24 or 48 bottles per carton, with gross weight and dimensions printed on the outside. Pallet configuration is agreed at order stage: standard 1200 x 1000mm or 1200 x 800mm pallets, stretch-wrapped and corner-boarded, with a maximum height of 1.8m including pallet. For Amazon FBA, we apply FNSKU labels over the barcode, poly-bag or shrink-wrap as required, and print the box content label with the correct SKU and quantity. Retail compliance checks such as case pack accuracy and barcode scannability are performed on the first carton of each run.

Sample orders for vitamin C tablets are typically 7-10 working days from formula confirmation, including tableting, coating and packing into your chosen sample format. The sample is accompanied by a draft COA so you can review the specification before committing to a production order. Once artwork and deposit are approved, mass production runs 20-35 working days depending on tablet count, coating requirements and packaging complexity. Sustained-release matrices and effervescent formats sit at the longer end of that window because of additional drying and stability checks.

We quote EXW, FOB Shenzhen or Hong Kong, and DDP for most destination countries. Air freight is suitable for sample and pilot volumes up to around 200kg, with transit of 5-8 days door to door. Sea freight is used for full pallet orders, with transit of 25-35 days to European ports and 18-25 days to US west coast ports. For DDP shipments we handle customs clearance and duties, and provide a commercial invoice, packing list and bill of lading or airway bill as applicable.

Shipping documents include the certificate of analysis, material safety data sheet where required, free-sale certificate for markets that request it, and phytosanitary certificate only where a botanical ingredient in the formula triggers that requirement. We do not issue documents we cannot legally support, so certificate wording is confirmed against your destination country's import rules before the shipment leaves. Carton markings include the lot number, production date, expiry date and country of origin, which must match the shipping documents for customs clearance.