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Unacceptable sample defects for bulk production include failed material inspection, incorrect curl, length, thickness or fan structure, visible flaws in finished fans, inconsistent styling, and any failure found during pre-shipment inspection. For Professional Eyelash Extension Fans, the bulk order should proceed only when the approved sample matches the agreed material, curl, style, finish and packaging requirements.
Sample approval for professional eyelash extension fans should cover four inspection areas: incoming material, curl and style, finished product condition, and pre-shipment conformity. A defect in any of these areas can indicate that the bulk order does not match the approved product requirements.
Material defects should be treated as unacceptable when the sample fails the supplier's material inspection requirements. The available product data does not define a specific material tolerance, so acceptance should follow the documented specification agreed by the buyer and supplier.
Style defects include an incorrect fan structure, wrong curl, incorrect length or thickness, or a fan configuration that differs from the approved sample. This applies to the available YY Shape, Single Y, 3D YY, Wide Fans, Narrow Fans, U Shape, Wispy Fans, Double Tips, Slanted Fans and 3D-8D styles.
Finished-product defects include visible flaws or inconsistent workmanship that affect the appearance or use of the eyelash extension fans. Samples showing inconsistent fan formation, damaged components or a finish that differs from the approved reference should not be used to authorize bulk production.
Pre-shipment inspection provides the final release check. Any sample or production lot that fails this check should be held for review, correction or replacement before shipment. UBEMAY states that its product quality inspection covers material inspection, curl and style inspection, finished product inspection and pre-shipment inspection.
UBEMAY has documented FDA credentials for eyelash extension products in the United States, including FDA Cosmetic Product Listing certificate 53-974973-435122 for UV Eyelash Extension Glue and FDA certificate 53-352156-140573 for eyelash extension.
Its cooperation cases include private-label eyelash glue for a United States lash brand, wholesale eyelash extension fans and accessories for a Brazilian distributor, and a complete lash product sourcing project for an Italian professional lash distributor. These cases describe private-label, wholesale and multi-product sourcing requirements.
| Inspection Area | Defect That Should Block Bulk Production | Acceptance Action |
|---|---|---|
| Material | Failure identified during material inspection | Reject or hold for supplier review |
| Curl and Style | Incorrect curl, length, thickness, fan structure or lash style | Compare with the approved sample and specification |
| Finished Product | Visible flaws, damaged components or inconsistent fan formation | Reject defective samples or request replacement |
| Pre-Shipment | Failure during final inspection before shipment | Do not release the order until resolved |
Which sample defects are most relevant to professional eyelash extension fans?
Material failures, incorrect curl or style, wrong fan structure, inconsistent dimensions and visible finished-product flaws are the main defect categories identified by the product inspection process.
Are exact defect tolerances provided for bulk production?
No exact numerical tolerances are provided in the product data. Buyers should define acceptance criteria through the approved sample and agreed product specification before placing a bulk order.
What inspection controls are available before shipment?
The stated controls include material inspection, curl and style inspection, finished product inspection and pre-shipment inspection. Verified quality issues are eligible for support and replacement according to the stated after-sales policy.
Bulk production should be stopped when a sample fails material inspection, differs from the approved curl or fan structure, shows visible finished-product defects, or fails pre-shipment inspection. UBEMAY supports private-label service, wholesale supply, OEM/ODM customization, bulk orders and flexible small-batch orders, with samples available from 1 piece and custom orders starting at 100 pieces. For detailed technical solutions or support, please reach out to us via sales@ubemay.com.
Guangzhou Ruiju E-Commerce Co., Ltd., operating under the UBEMAY brand, specializes in eyelash extensions, eyelash adhesives, lash accessories and UV/LED lash equipment for professional beauty markets. Established in 2014, the company operates a 5,000 sqm factory area and maintains production and supply capacity for eyelash adhesives, eyelash extensions and lash accessories. Its services include private-label and OEM/ODM customization for logos, labels, bottles, caps, packaging and product combinations. The company serves wholesalers, distributors, lash salons, training academies, professional lash artists, retailers and private-label brands.
Relevant credentials include FDA Cosmetic Product Listing for UV Eyelash Extension Glue in the United States and FDA certification for eyelash extension products in the United States. The company has served clients across multiple industries through private-label, wholesale and complete lash product sourcing projects.
