We diligently develop high quality products and strive to earn your satisfaction. If for any reason you are not satisfied with your purchases, please follow our Return Policy for product return or exchange.

Certain products, for example, Ready-to-Use Kits, Growth Factors, Antibodies, Culture Media cannot be returned. If you mis-replace an order, please email us as soon as possible. We may be able to cancel your order in time before the items are shipped.

Small molecules and some chemical based Antibody-Drug-Conjugate/ADC products can be replaced for quality reasons. Please see the following instructions for replacement:

1. Email us for a replacement request prior to shipping your order back to us. All compounds returned to Xcessbio should be in the same condition as originally purchased.

2.We offer free replacement for product damage or defects upon receiving.

3. Replacement is limited to individual chemical compounds and some chemical-based ADC products, and is only applied to the orders purchased directly from Xcessbio or through our authorized distributors.

4. Once your replacement request is received and approved, we will process your order as soon as possible. You will be notified by phone/email for shipment of a replacement item.