Shipping & Returns

Delivery time depends on the destination country or region, customs clearance, carrier handoff, local delivery conditions, and any special handling requirements for the product. Any delivery estimate shown at checkout is an estimate, not a guaranteed arrival date unless explicitly stated.

Tracking details will be sent after the order ships. Tracking updates may take time to appear after the carrier receives the package.

International orders may be subject to import duties, taxes, customs fees, brokerage fees, or local handling fees. These charges are determined by local authorities and are the customer's responsibility unless otherwise stated at checkout.

Customers are responsible for ensuring that the products they order can be legally imported, received, stored, and used in their destination country or region.

Returns may be accepted within 30 days of delivery if the item is:

• Unused and unopened
• In its original packaging
• In resalable condition
• With all seals, labels, manuals, accessories, and original documentation intact
• Not expired or damaged due to improper storage or handling after delivery

For safety and quality-control reasons, we cannot accept returns for:

• Opened or used test kits, reagents, sample collection materials, or diagnostic consumables
• Products with broken seals or damaged original packaging
• Items that have been exposed to biological samples, animals, chemicals, moisture, heat, or improper storage conditions
• Temperature-sensitive or cold-chain products, unless the item is defective or damaged upon arrival
• Customized, special-order, clearance, or final-sale items
• Products returned after the 30-day return period

If an item arrives damaged, defective, incomplete, or incorrect, please contact customer support within 7 days of delivery.

Please provide:

• Your order number
• A short description of the issue
• Clear photos or videos showing the problem
• Photos of the outer packaging and shipping label, if shipping damage is involved

After review, we may offer a replacement, exchange, store credit, or refund, depending on the situation.

Unless the return is due to our error, a defective product, or shipping damage confirmed by us, customers are responsible for return shipping costs.

Original shipping fees, customs duties, taxes, payment processing fees, and other third-party charges are generally non-refundable, unless otherwise required by applicable law or unless the issue was caused by our error.

Once we receive and inspect the returned item, we will notify you regarding the approval or rejection of your refund.

Approved refunds will be issued to the original payment method used during checkout when possible. Refund processing may take up to 3 business days after the returned item has been inspected. Additional time may be required for the refund to appear on your bank or credit card statement, depending on your financial institution.