Nada

Unsatisfactory products can be exchanged or refunded within 30 days after being received. It is impossible to process a request for a refund for non-quality issues for items that have expired during this 30-day window. Each order is eligible for a one-time exchange/return for any reason. Please kindly note that the "exchange order" is not eligible for another exchange/return.

If we made a mistake when processing the order, such as making the wrong prescription, sending the wrong items, etc, we will provide a Return Shipping Label for returning the products and will issue a full refund.
If you made a mistake in your order accidentally, we are sorry that we will be not responsible for providing the shipping label and you should return the products yourself.
1.If you want a refund, the original shipping fee on the order, if any, is non-refundable. The refund(excluding the shipping fee, if there is any) will be processed within 7 days arfter we receive your return package.
2.If you want to exchange, we will send you the new item(s) arfter we receive your return package. Please notice that the price of the new item(s) should be equivalent to the original item(s) and the price difference will be needed if there is any.