Refund & Returns Policy

All sales are final

Because these are research materials with strict storage requirements, we do not accept returns and do not issue refunds or exchanges once an order has shipped.

Sole exception: damage in transit

If a vial arrives broken, cracked, or otherwise damaged in transit, we will replace it or issue a refund for the affected item when all of the following are met:

• The damage is reported within 72 hours of the carrier-confirmed delivery time.
• Clear photo proof is provided showing the damaged vial, the packaging, and the shipping label.
• The order number is included in the report.

How to report

Email support@dhlaboratories.com with the subject line "Damaged in transit" and attach your photos. Claims submitted after 72 hours cannot be honored.

Order cancellation

Orders may be cancelled only before a shipping label has been generated. Store credit applied to a cancelled order is returned to your account balance.