| 1 | Define the product format first | Choose standard lipstick, slim lipstick, refillable tube, balm tube, or magnetic tube. | Common lipstick fill weights are approximately 3–4.5 g; slim formats may hold about 2–3 g, depending on the formula and pan design. | Confirm the actual fill weight, bullet diameter, bullet height, and usable internal volume with a physical sample. | The bullet may not fit correctly, or the package may look oversized for the amount of product inside. |
| 2 | Match the tube to the formula | Check formula hardness, oil content, wax content, fragrance, and temperature sensitivity. | Creamy or high-oil formulas generally need stronger bullet support and tighter inner-component control than firm, wax-rich formulas. | Run compatibility, insertion, twist, leakage, and heat-aging tests using the final formula. | The lipstick can loosen, deform, stain the inner tube, or become difficult to raise and lower. |
| 3 | Select materials for the target market | Specify the material for the shell, inner cup, mechanism, cap, and decorative parts. | PP is widely used for lightweight inner components; ABS is commonly used for rigid outer parts; aluminum may be selected for a premium metal appearance. | Request material declarations, recycled-content information where applicable, and migration or compatibility documentation. | Material restrictions, recycling claims, or market-entry requirements may not be met. |
| 4 | Set precise dimensional tolerances | Define outer diameter, total height, cap fit, bullet clearance, and mechanism alignment. | A practical starting point for molded cosmetic components is often a dimensional tolerance around ±0.10–0.20 mm, but the final value depends on the feature and process. | Approve a dimensioned drawing and inspect samples with calibrated gauges or measuring equipment. | Caps may wobble, stick, fail to close, or create visible gaps between components. |
| 5 | Evaluate the twist mechanism | Confirm smooth travel, locking behavior, back-drive resistance, and product retention. | The mechanism should raise and lower the bullet consistently without visible wobble; the cap should remain securely attached during normal handling. | Perform repeated open-close and full-travel cycles, then inspect for looseness, noise, cracking, or incomplete retraction. | The bullet can twist unevenly, fall out, scrape the cap, or remain exposed during transport. |
| 6 | Choose decoration based on sales positioning | Select color matching, printing, hot stamping, metallization, soft-touch coating, or embossing. | Gloss, metallic, and soft-touch finishes can show fingerprints or abrasion more easily than uncoated or textured surfaces. | Approve a signed color standard and conduct adhesion, rub, scratch, and alcohol-resistance tests on decorated samples. | Color variation, peeling decoration, and surface marks can increase returns and reduce shelf appeal. |
| 7 | Plan logistics around packaging dimensions | Define individual cartons, inner boxes, master cartons, pallet loading, and shipping protection. | Typical finished lipstick tubes are compact, often approximately 18–25 mm in diameter and 65–85 mm in height, excluding retail cartons. | Request packed-carton dimensions, gross weight, units per carton, and a drop or vibration test for the final pack-out. | Freight calculations become inaccurate, or caps and decorative surfaces are damaged in transit. |
| 8 | Check regulatory and labeling needs | Identify the destination markets and applicable cosmetic packaging, labeling, recycling, and chemical requirements. | Requirements vary by market; packaging may need material identification, responsible-party information, batch coding, or recycling-related disclosures. | Review the packaging specification with a qualified regulatory professional before mass production. | The finished product may require relabeling, rework, or delayed customs and market release. |
| 9 | Compare the total landed cost | Include tooling, decoration, assembly, inspection, packaging, freight, duties, and product-development samples. | A lower unit price may be offset by higher tooling, decoration setup, minimum order quantities, or freight volume. | Request a written quotation separating one-time costs, recurring unit costs, payment terms, lead time, and shipping assumptions. | The project exceeds budget after sampling, customization, or import costs are added. |
| 10 | Approve quality standards before production | Define acceptable limits for appearance, function, dimensions, color, contamination, and assembly. | Use a documented inspection plan with agreed defect classifications, sample size, inspection level, and acceptance criteria. | Approve a golden sample, signed artwork, master color standard, and pre-shipment inspection checklist. | Quality disputes become subjective, and inconsistent products may reach distributors or consumers. |