Capsule bottle

The most common materials are High-Density Polyethylene (HDPE), which offers excellent moisture barriers and durability, and Polyethylene Terephthalate (PET), known for its glass-like clarity and gas resistance. For premium or light-sensitive products, Amber-colored PET or opaque HDPE is essential to protect contents from UV degradation. Ensure all materials are BPA-free and FDA-approved food-grade to meet safety standards.

Effective sealing is critical for shelf-life. You should prioritize bottles that support Induction Heat Seals (IHS) or Pressure Sensitive Liners. The cap design should ideally feature a tight-thread pitch to prevent air ingress. For highly hygroscopic capsules, consider bottles with integrated desiccant canisters or built-in desiccant chambers in the cap to maintain a low-humidity environment.

For the US market, compliance with CFR Title 21 (FDA) is mandatory. If the product is intended for households with children, the bottles must feature Child-Resistant Closures (CRC) compliant with ISO 8317 or 16 CFR 1700.20. For the European market, ensure the manufacturer provides REACH and RoHS certifications, as well as CE marking if classified under medical packaging.

Suppliers on Made-in-China.com generally offer OEM/ODM services including custom mold development for unique shapes, silk-screen printing, UV coating, and hot stamping. You can also request specific neck finishes (e.g., 28/400 or 38/400) to ensure compatibility with third-party dispensing pumps or specialized caps.

Capsule bottles are lightweight but bulky, making them prone to crushing. Insist that the supplier uses 5-layer corrugated export cartons and inner polybags to prevent dust contamination. For large orders, request palletization with stretch wrap and edge protectors to ensure stability. Always include a clause for a maximum 2% breakage rate in your purchase agreement.

Start by requesting a sample orifice test to ensure the bottle neck matches your filling machine specifications. Negotiate based on Total Cost of Ownership (TCO) rather than just the unit price; ask for tiered pricing (e.g., 10k, 50k, 100k units). Mention that you are looking for a long-term strategic partner to secure better payment terms (such as 30% deposit, 70% against BL).

Check if the supplier is an Audited Supplier on Made-in-China.com. Look for ISO 15378 certification, which specifically addresses primary packaging materials for medicinal products. Request a Pre-Shipment Inspection (PSI) by a third party like SGS or Intertek to verify wall thickness consistency, thread accuracy, and color uniformity across the batch.

Due to the high volume-to-weight ratio, Sea Freight (FCL - Full Container Load) is the most economical method. If you are buying different sizes, use 'nesting' techniques (placing smaller bottles inside larger ones if packaging allows) to optimize container space. Ensure the HS Code (typically 392330) is correctly declared to avoid customs delays and verify the import duty rates in your specific country.