I have just received my lenses, but I noticed that the color is not exactly the same as what I have been purchased before. What makes the lens color become darker or lighter than before?

We won't change the colors of our contact lens. There is no intentional change for the color opacity from year to year but it can be that the production of one production lot varies slightly from another production lot under very specific conditions, such as temperature and humidity. But these variations are always within the quality controlled ISO standards.

One Piece Hema Contact Lenses for Comfortable Vision

Name: One Piece Hema Contact Lenses for Comfortable Vision
Brand: Henan UNK Vision Co.LTD
SKU: 2149861282

Henan, ChinaHenan UNK Vision Co.LTD

US$2.00

5-99 Pair

US$1.60

100-999 Pair

US$1.40

1,000-4,999 Pair

US$1.20

5,000+ Pair

Product profile

Customization

Available

Base Curve

8.4mm~8.7mm

Luminosity

-0.00

Center Thickness

0.24mm

Diameter

14.0mm

Lenses Material

Hema

Lenses Color

Three-Colour

Water Content

40%-60%

Abandonment

Year Disposable

Using Cycle Periods

Long-termed

Package Quantity

One Piece

Materials

Hema

Package

PP Blister

Power

0.00

Transport Package

Carton

Specification

pieces

Trademark

Origin

China

HS Code

9001300000

Production Capacity

500000pieces/Month

Key features

FDA Compliant Materials: Manufactured using imported high-precision equipment and FDA-compliant raw materials.

ISO13485 & GMP Certified: Adheres to dual standards of ISO13485 and GMP for rigorous quality management.

Yearly Disposable Design: Designed for long-term use with a recommended replacement cycle of one year.

Customization Available: Offers full, minor, and flexible customization from samples or designs.

High Water Content: Features a water content range of 40%-60% for comfortable vision.

100% Quality Inspection: Every finished product undergoes functional and visual inspection.

Sandwich Production Method: Utilizes advanced sandwich method for superior lens clarity and safety.

OEM & ODM Services: Provides OEM and ODM services for custom branding and packaging.

Company profile

High Repeat Buyers ChoiceR&D CapabilitiesProduction Process VisualizationManagement Certification

Henan UNK Vision Co.LTD

Henan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 2 years CertifiedNearest Port: Zhengzhou PortAverage Response Time: ≤5.67h

AI-Powered supplier vetting

SummaryThe supplier is a combined company with manufacturing, quality-control, R&D, export, and service capabilities. It reports nine quality inspectors, multiple production and inspection facilities, flexible customization, OEM and ODM services, and in-stock capacity. However, it lacks an effective manufacturing-capacity contract with related subcontractors, overseas agents, branches, warehouses, showrooms, and offline trade-show experience. Quality assurance is reported, but corrective-action and complaint-handling procedures lack written records. R&D partnerships and customization are stated, while no new products were introduced in the past year and no SDK is available. Financial-period and cash-flow references are provided, but the slices do not establish financial strength. Customer-case evidence is limited to OEM service for known brands and own-brand quality-control information.

Supplier typeThe supplier is explicitly identified as a combined company and offers information covering manufacturing, export trade, service, quality control, R&D, and sustainability. This indicates a multifunctional supplier structure rather than a narrowly defined service provider.

After-Sales capabilityThe supplier has in-stock service capacity and states average peak- and off-season lead times within 15 working days. However, it has no overseas agents or branches, overseas warehouse, showroom, or written procedures or records for complaint handling and corrective and preventive actions, limiting evidence of a formal after-sales system.

Production capacityThe supplier lists multiple production, printing, packing, sterilization, inspection, and testing facilities, employs nine quality assurance and quality-control inspectors, reports in-stock capacity, and states lead times within 15 working days. However, it also reports no valid manufacturing-capacity contract with related subcontractors, creating a documented weakness in capacity governance.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization, and also provides ODM services. These repeated, specific capabilities support a strong customization assessment.