Softgels Resource Hub: Formulation, Fill Weights and Lead Times

A rotary die softgel line handles oblong, oval and round shapes. Fill weights run from 250 mg to 1,500 mg, with a tolerance of ±5% on most formulas. Shell thickness is typically 0.7–0.9 mm. Output depends on die size and fill: a mid-size line runs 40,000–80,000 softgels per shift. That matters when you plan a 5,000-unit retail run against a 50,000-unit launch.

Tooling is the fixed cost. A new die set takes 10–15 working days to cut and test. If your formula fits an existing die, you skip that step and move to samples faster. EUPHM holds common oval and oblong dies for fish oil, vitamin D and CoQ10, which shortens pilot timelines. For custom shapes, budget extra time and a tooling fee that amortises over repeat orders.

Softgels suit oil-soluble actives: fish oil, krill oil, vitamin E, vitamin D3, CoQ10, lutein and CBD. Suspension formulas can carry powders such as curcumin or astaxanthin, but the particle size must stay below 80 microns to avoid die clogging. Carrier oils are typically MCT, soybean or sunflower. Antioxidants like mixed tocopherols extend shelf life to 24 months in a sealed bottle.

Fill weight drives cost more than any other variable. A 1,000 mg fish oil softgel needs a larger shell and more drying time than a 500 mg vitamin D3. If your label claims 1,200 mg EPA+DHA, the fill weight must support it after overage. Typical overage is 5–10% to cover degradation over shelf life. Bring your target label claim and we calculate the fill weight and shell size before sampling.

Every batch is tested for identity, potency, microbials and heavy metals. Certificates of analysis are issued per lot. The facility is GMP-certified, ISO 22000 and HACCP, and is FDA-registered. halal and vegan certifications are available when the formula and shell meet the standard. Vegan softgels use starch or carrageenan instead of gelatin, which changes drying time and cost.

For US, EU, UK and Middle East buyers, we prepare a document pack: COA, MSDS, allergen statement, country of origin and halal certificates where relevant. Shipping from Guangdong typically runs 18–25 days to the US west coast, 25–35 days to Europe, and 10–15 days to the Middle East by sea. Air freight cuts transit to 5–8 days at higher cost. Labels must meet destination rules; we review artwork before printing.

Every softgel batch is tested at three points: incoming raw materials, the bulk fill before encapsulation, and the finished capsule. Identity and potency are confirmed by HPLC or GC depending on the active. Microbial limits follow USP <2021> or <2022> with total aerobic count under 1,000 cfu/g and absence of E. coli and Salmonella. Heavy metals are screened by ICP-MS against EU or NSF thresholds. Disintegration is run in purified water at 37°C, with a typical target of under 30 minutes for gelatin shells.

A certificate of analysis is issued per batch and lists the product name, batch number, manufacture and expiry dates, tests performed, specification limits, results and the analyst's signature. Retain samples of both bulk fill and finished capsules are held for the shelf life plus six months, stored under the same conditions as commercial stock. Stability follows a bracketed protocol: 0, 3, 6, 12, 18 and 24 months at 25°C/60% RH, with accelerated arms at 40°C/75% RH for six months where the market requires it.

Documentation is compiled before release, not after. The batch record, line clearance sheet, in-process checks (shell weight, seam thickness, fill weight variation within ±5%) and environmental monitoring results are reviewed by QA. Any out-of-specification result triggers an investigation before the batch can be shipped. Buyers receive the COA, the batch record summary and a deviation log if applicable. This package is what a notified body or a retail quality team will ask for during a supplier audit.

Softgels are typically packed in HDPE bottles with induction seals, in blisters with aluminium foil, or in single-serve sachets and stick packs. Bottle sizes range from 30 to 180 counts, with 60 and 90 being the most common for retail. Blisters suit pharmacy channels and sample packs. Stick packs are used for liquid-filled softgels where a single dose is preferred. Cartons are specified with a stated board grade, usually 300 to 350 gsm, and pallet configurations follow a 1,200 x 1,000 mm or 1,200 x 800 mm footprint depending on the destination market.

Labels must carry the FDA dietary-supplement elements: statement of identity, net quantity, supplement facts panel with serving size and per-serving amounts, other ingredients, and the manufacturer or distributor address. Lot code and expiry are printed or laser-coded on the bottle and the carton, with a recommended format of YYMMDD for lot and MM/YYYY for expiry. For Amazon, the FNSKU label must be applied over the original barcode or the carton must be poly-bagged with a suffocation warning where required.

Retail readiness also covers artwork checks against the destination market. EU labels need the nutrition declaration in the local language and allergen statements where applicable. Halal marks must be licensed for the specific SKU, not just the facility. We run a pre-press proof at 1:1 scale and a physical mock-up before mass printing. Buyers should allow 5 to 7 working days for artwork approval, as label changes after printing are charged at full plate cost.

Sampling starts with a formulation brief and a target fill weight. We provide a quotation within 3 working days, then produce samples in 7 to 10 working days. Sample quantities are typically 100 to 300 capsules, enough for stability initiation and sensory review. If tooling is required for a new shape, add 10 to 15 working days for die fabrication. Sample costs are credited against the first mass-production order above the pilot MOQ.

Mass production runs 20 to 35 working days after sample approval and receipt of the deposit. The window depends on shell type, fill complexity and packaging. Air freight from Guangdong to Europe or North America takes 5 to 8 days door to door; sea freight takes 28 to 35 days to the US west coast and 30 to 38 days to northern Europe. We quote EXW, FOB Shenzhen or Hong Kong, and DDP for buyers who want a landed cost. DDP includes duty and clearance but excludes VAT in most destinations.

Shipping documents are issued with the commercial invoice and packing list: COA per batch, MSDS for the finished product, a free-sale certificate, and a certificate of origin. Phytosanitary certificates apply only where the product contains botanical ingredients that the destination requires. For halal claims, the certificate must be issued by the recognised authority for that market. Buyers should confirm the document set before booking freight, as some markets require legalisation or consular approval, which adds 5 to 10 working days.