| Bottle Material | PET, HDPE and PP are widely used cosmetic-packaging plastics. PET offers high clarity; HDPE provides good chemical resistance and stiffness; PP is commonly used for closures and selected bottle applications. | Request the exact resin specification, technical data sheet, grade information, and compatibility statement for the intended formula. | Material selection affects appearance, chemical compatibility, recyclability, weight and product shelf life. |
| Common Volume Range | Common cosmetic bottle formats include approximately 30 mL, 50 mL, 100 mL, 150 mL, 200 mL, 250 mL and 500 mL. Actual fill volume and overflow capacity must be confirmed separately. | Confirm nominal fill volume, overflow volume, neck dimensions, bottle height, maximum diameter and allowable dimensional tolerances. | Accurate dimensions are essential for filling-line compatibility, labeling, cartons and retail presentation. |
| Neck Finish and Closure Fit | Thread specifications such as 18/410, 20/410, 24/410 and 28/410 are commonly used in plastic packaging. The first number generally refers to the neck diameter in millimetres; the second identifies the thread finish style. | Obtain a technical drawing and test the bottle with the final pump, sprayer, flip-top cap or screw cap. Check torque, leakage and application rate. | Correct neck matching prevents leakage, poor dispensing performance and assembly failures. |
| Formula Compatibility | Compatibility testing should evaluate the filled package under expected storage conditions, including exposure to the actual formula, temperature and light where relevant. | Request compatibility-test protocols and results covering appearance, odor, weight change, leakage, stress cracking, discoloration and formula stability. | Alcohols, essential oils, surfactants, acids and solvents can affect plastics, closures, liners and decoration. |
| Leakage and Seal Performance | A suitable package should pass the buyer’s specified leak, inversion, pressure and transport tests using the final bottle-and-closure combination. | Define test orientation, duration, temperature, internal pressure and acceptance criteria before mass production. | Seal failures can cause product loss, contamination, damaged cartons and customer complaints. |
| Dimensional Consistency | Critical-to-function dimensions include neck finish, thread profile, sealing surface, wall thickness, bottle height and base diameter. Tolerances must be stated on the approved drawing. | Review inspection reports, capability data or sampling records for critical dimensions. Approve a production-quality reference sample. | Consistency supports automated filling, capping, labeling and reliable secondary packaging. |
| Decoration and Label Compatibility | Available options may include pressure-sensitive labels, screen printing, hot stamping, coating and sleeves. Decoration adhesion depends on the substrate, surface treatment and ink system. | Test artwork on production-intent bottles after exposure to formula, water, oil, abrasion and the planned shipping conditions. | Decoration quality affects brand presentation, barcode readability and resistance to handling damage. |
| Recycled and Recyclable Content | PET and HDPE containers can be recyclable where local collection and sorting infrastructure accepts them. PCR content is available in some grades, but its percentage, color and performance vary by supply. | Request a material declaration, PCR percentage by weight, chain-of-custody documentation where applicable, and confirmation that additives and decoration do not prevent the intended recycling route. | Sustainability claims must match the actual material composition and the destination market’s recycling system. |
| Quality Management System | ISO 9001 is an internationally recognized quality-management-system standard. Certification scope, site address and validity should be checked rather than relying only on a certificate image. | Request the current certificate, certification scope, issuing body and recent audit or corrective-action information. | A documented quality system improves process control, traceability and corrective-action management. |
| Cosmetic Packaging Hygiene | ISO 22716 provides Good Manufacturing Practices guidelines for cosmetic products. For packaging components, buyers should also define cleanliness, handling and contamination-control requirements. | Review hygiene procedures, clean-area controls where applicable, pest control, employee practices, cleaning records and contamination-prevention measures. | Clean packaging reduces the risk of particulate, microbial and foreign-material contamination. |
| Product Safety Documentation | A professional supplier should be able to provide relevant declarations and technical documents for the packaging material, additives, colorants, inks and coatings used in the finished component. | Request material declarations, restricted-substance statements, safety data where relevant and destination-market compliance documents. | Documentation supports regulatory review, customer audits and import clearance in different markets. |
| Packaging and Transport Testing | ASTM D4169 is a recognized practice for performance testing of shipping containers and systems under distribution hazards. The selected test cycle must reflect the actual supply chain. | Confirm pallet configuration, carton strength, drop or vibration testing, temperature exposure, container loading and transit route assumptions. | Proper testing reduces breakage, deformation, leakage and transport-related claims. |
| Minimum Order Quantity | MOQ is not a universal technical standard. It commonly varies according to bottle size, molding process, color, decoration, mold ownership and PCR requirements. | Obtain separate MOQs for standard stock, custom color, custom tooling, decoration and different closure combinations. | The MOQ directly affects inventory investment, unit cost and the feasibility of market testing. |
| Tooling and Development | Custom bottles may require new molds, prototypes, dimensional approval and pilot production before mass manufacturing. Tool ownership and maintenance responsibility must be documented. | Confirm tooling cost, lead time, ownership, storage, maintenance, modification charges and the approval process for engineering changes. | Clear tooling terms reduce disputes and protect continuity of supply for custom packaging. |
| Lead Time and Supply Capacity | Lead time should be separated into sampling, tooling, first production, repeat production, decoration and shipping. Capacity should be evaluated using the specific bottle and closure configuration. | Request a written production schedule, monthly capacity estimate, raw-material planning method and contingency plan for demand changes. | Reliable planning helps prevent launch delays and stockouts across international markets. |
| Traceability and Batch Control | Finished packaging should be identifiable by production date, batch or lot number, material information and inspection status according to the agreed quality plan. | Check how raw materials, molding records, decoration batches, inspections and retained samples are linked to the finished shipment. | Traceability supports targeted investigations, recalls and supplier corrective actions. |
| Total Landed Cost | The relevant comparison is not unit price alone. Total landed cost may include tooling, decoration, closures, inner packaging, inspection, freight, duties, warehousing and scrap. | Compare quotations using the same specifications, Incoterm, quantity tier, packaging configuration, currency and delivery destination. | A lower ex-factory price may result in a higher final cost after logistics, quality losses and additional processing. |