Manual capsules

B2B buyers must choose between Gelatin capsules, derived from animal collagen, and HPMC (Hypromellose) capsules, which are plant-based. Gelatin is generally more cost-effective and has a faster dissolution rate, while HPMC is ideal for vegetarian/vegan markets, has lower moisture content (making it suitable for hygroscopic powders), and is more stable under high-temperature conditions.

To ensure consumer safety and legal entry into markets, suppliers must provide FDA registration, GMP (Good Manufacturing Practice) certification, and ISO 9001. For specific target demographics, verify Halal and Kosher certifications. If exporting to the EU, compliance with EFSA standards regarding titanium dioxide (E171) usage is critical.

Capsule sizes range from 000 (largest) to 5 (smallest). The choice depends on the bulk density of your powder and the target dosage. For manual filling, Size 0 and Size 00 are the most popular due to their ease of handling and standard dosage capacity (approx. 400mg to 800mg). Always request a volume-to-weight conversion chart from the supplier.

Ensure the capsules have a pre-lock feature that prevents accidental opening during transit but allows for easy separation during the manual filling process. The dimensional tolerance should be strictly controlled (within ±0.2mm) to prevent jamming in manual loading plates. High-quality capsules should feature tapered rims on the body to facilitate snag-free joining.

Capsules are highly sensitive to temperature and humidity. Gelatin capsules can become brittle if too dry or sticky if too humid. You must specify temperature-controlled shipping (15-25°C) and humidity levels (35-65%). Ensure the supplier uses heavy-duty corrugated boxes with antistatic plastic liners to prevent moisture ingress and physical deformation.

Prioritize Audited Suppliers who have undergone third-party onsite inspections. Review their Trust Points and look for a history of large-scale exports to your target region. Request a COA (Certificate of Analysis) for the specific batch before shipment to verify microbial limits and disintegration times.

Focus on tiered pricing; for capsules, the price per thousand drops significantly when ordering in full carton increments or pallet loads. Negotiate for custom colors or branding (printing) which can be included at a lower cost if the volume exceeds 1 million pieces. Ask for free samples (approx. 500-1000 pcs) to test on your manual filling equipment before committing to a bulk contract.

Use Secured Payment services provided by the platform to ensure funds are only released upon proof of shipment. For large orders, consider a third-party pre-shipment inspection (such as SGS or Intertek) to verify that the capsule count, color consistency, and locking integrity meet your specifications before the goods leave the factory.