*We promise to complete order processing and shipment within 48 hours after your successful order and payment (excluding customized products).

*After your order is shipped, you will receive an email notification with the tracking number, allowing you to monitor the package status at any time.

*Freight description:：We will charge the actual shipping fee based on the product weight and delivery address.

*Safety Packaging: All products are packed with professional shockproof and anti-drop packaging materials by dedicated personnel to ensure maximum integrity during transportation.

Weiran Biology adheres to the principle of customer-first, providing you with clear and convenient after-sales service.

Within 7 days after receipt, if the return or exchange is due to product quality issues or our incorrect shipment, it can be processed upon confirmation. In such cases, we will cover the logistics costs incurred for the return or exchange.