Return & Refund Policy

Last Updated: [2026]

This Return & Refund Policy explains how Yuee Experiment handles returns, refunds, replacements, cancellations, and product-related claims. By placing an order with Yuee Experiment, you agree to the terms described in this policy.

1. Company Information

Yuee Experiment provides quartz cuvettes, glass cuvettes, micro flow cells, fused silica optical windows, XRD sample holders, PTFE and ceramic laboratory products, and custom quartz/glass components for laboratories, distributors, research institutions, and analytical instrument companies.

For return, refund, or product issue questions, please contact us at:

Yuee Experiment
Email: info.us@yueexperiment.com
Website: www.yueexperiment.com

2. General Return Policy

Customer satisfaction and product quality are important to us. If you receive a product that appears damaged, defective, incorrect, or does not match the agreed written specifications, please contact us promptly.

All return, refund, replacement, or remake requests must be reviewed and approved by Yuee Experiment in advance.

Unauthorized returns may not be accepted.

3. Standard Products

Standard products may be eligible for return or refund if all of the following conditions are met:

The product is unused
The product is undamaged
The product is uncontaminated
The product is in its original packaging
The return request is submitted within 14 calendar days after delivery
Yuee Experiment approves the return in advance

Standard products may include regular catalog items such as standard quartz cuvettes, glass cuvettes, PTFE products, ceramic products, or other non-custom items listed on our website.

Return eligibility is determined by Yuee Experiment after review.

4. Custom Products and Special-Order Products

Custom products, special-order products, OEM products, and products made according to customer drawings, samples, or specifications are generally not eligible for return, refund, or cancellation once production has started, unless there is a confirmed manufacturing defect or the product does not meet the agreed written specifications.

Custom products may include, but are not limited to:

Custom quartz cuvettes
Custom glass cuvettes
Micro flow cells
Flow-through cuvettes
Fused silica optical windows
XRD sample holders
OEM quartz/glass components
Products made according to drawings, samples, or customer specifications
Products with special dimensions, optical path length, channel geometry, fittings, volume, material, coating, or packaging requirements

Customers are responsible for confirming all specifications before approving production.

5. Order Cancellations

For standard products, cancellation may be possible if the order has not yet been processed, packed, or shipped.

For custom products, cancellation may be possible only before production begins. Once material preparation, production, machining, assembly, inspection, or other custom work has started, the order generally cannot be cancelled.

If a custom order is cancelled before completion, Yuee Experiment may charge for costs already incurred, including materials, labor, tooling, design review, machining, inspection, packaging, or administrative costs.

6. Defective or Incorrect Products

If you believe a product is defective, incorrect, or does not meet the agreed written specifications, please contact us within 5 business days of delivery.

To help us review the issue, you may be required to provide:

Order number
Product name or SKU
Photos of the product
Photos of the packaging
Description of the issue
Measurement results, if applicable
Relevant drawings, quotation, or agreed specifications
Any other supporting information reasonably requested by Yuee Experiment

After review, if Yuee Experiment confirms that the product has a manufacturing defect or does not meet the agreed written specifications, we may, at our discretion, provide repair, replacement, remake, credit, or refund.

7. Shipping Damage

Products such as quartz cuvettes, glass cuvettes, flow cells, optical windows, and custom glass/quartz components are fragile and should be inspected immediately upon delivery.

If a product is damaged during shipping, please contact us within 5 business days of delivery and provide:

Photos of the outer packaging
Photos of the inner packaging
Photos of the damaged product
Tracking number
Description of the damage

Please do not discard the product or packaging until the claim has been reviewed. The carrier or Yuee Experiment may require the damaged product and packaging for inspection.

Shipping damage claims reported after the required period may be difficult to process.

8. Non-Returnable Items

The following items are generally not eligible for return or refund:

Custom products
Special-order products
Products made according to customer drawings or specifications
Used products
Contaminated products
Products damaged after delivery
Products damaged by improper handling, installation, cleaning, storage, or use
Products exposed to chemicals, biological materials, hazardous substances, or laboratory samples
Products missing original packaging or accessories
Clearance, discontinued, or final-sale products, if applicable

9. Customer Responsibility for Product Selection

Customers are responsible for determining whether a product is suitable for their intended application, instrument, wavelength range, chemical environment, temperature condition, pressure condition, and laboratory process.

Yuee Experiment may provide general product information or technical guidance, but the final responsibility for product selection and application suitability remains with the customer.

Returns or refunds may not be approved if the product issue results from incorrect product selection, incomplete specifications, incompatible chemicals, improper use, or use outside the agreed specifications.

10. Return Authorization

Before returning any product, customers must contact Yuee Experiment and receive return authorization.

Returns sent without authorization may be refused or may not be eligible for refund, replacement, or credit.

If a return is approved, we will provide instructions for how and where to send the product.

11. Return Shipping Costs

Unless the return is due to a confirmed Yuee Experiment error or confirmed manufacturing defect, the customer is responsible for return shipping costs, customs duties, import fees, taxes, insurance, and any related charges.

Original shipping charges are generally non-refundable unless otherwise approved by Yuee Experiment.

For international returns, the customer is responsible for complying with all export, import, customs, and shipping requirements.

12. Refunds

Approved refunds will be processed after the returned product is received and inspected, or after Yuee Experiment determines that a refund is appropriate.

Refunds will generally be issued to the original payment method where possible. Processing time may vary depending on payment provider, bank, or platform.

Shipping fees, customs duties, import taxes, brokerage fees, payment processing fees, and other third-party charges may not be refundable.

13. Replacements and Remakes

For confirmed product defects, incorrect products, or products that do not meet the agreed written specifications, Yuee Experiment may provide a replacement or remake.

For custom products, replacement or remake decisions will be based on the agreed written specifications, drawings, quotation, inspection results, and supporting evidence provided by the customer.

Yuee Experiment may request that the original product be returned or made available for inspection before issuing a replacement, remake, credit, or refund.

14. Refunds for Custom Products

Custom products are generally non-refundable once production has started.

If Yuee Experiment confirms that a custom product has a manufacturing defect or does not meet the agreed written specifications, Yuee Experiment may, at its discretion, provide repair, replacement, remake, credit, or partial or full refund.

A custom product will not be considered defective solely because the customer later changes the application, instrument design, dimensions, quantity, or technical requirements after production has started or after delivery.

15. Restocking Fee

For approved returns of standard products, Yuee Experiment may charge a restocking fee depending on the product type, order size, condition, and handling requirements.

Any applicable restocking fee will be communicated during the return review process.

16. Time Limits

To help ensure timely resolution:

Shipping damage, missing items, visibly defective products, or incorrect products must be reported within 5 business days after delivery.
Return requests for eligible standard products must be submitted within 14 calendar days after delivery.
Custom product issues should be reported as soon as possible and must include supporting evidence for review.

Requests submitted after the applicable time period may not be eligible for return, refund, replacement, or remake.

17. Changes to This Policy

Yuee Experiment may update this Return & Refund Policy from time to time. The updated version will be posted on this page with a revised “Last Updated” date.

Your continued use of our website or purchase of products after changes are posted means you accept the updated policy.

18. Contact Us

If you have questions about returns, refunds, replacements, cancellations, or product issues, please contact us at: