Starting policy. Last updated 15 September 2026. We may update this page as operations change.
Returns.
These are research materials, not retail products. We handle problems that we caused. We do not offer a percentage-based certificate guarantee.
Inspection window
If something arrives damaged, missing, or different from the order, email us within 7 business days of delivery. Include the order number, what is wrong, and clear photos of the packaging and the item. We will say in writing what we can do (reship, refund, or another fix we can actually support).
Unopened materials
If a vial or pack is unopened and unused, you may ask us to consider a return within 7 days of delivery. Write to [email protected] before you send anything back. Acceptance is not automatic. We will confirm in writing if we can take the return and how refunds are issued through the original Tagada payment.
Opened or used materials
Opened, reconstituted, or otherwise used research materials are generally not returnable. Once a seal is broken we cannot treat the item as unused stock.
What we do not promise
We do not offer a 200% refund or any other multiplied certificate guarantee. We do not refund because a published study did not match a hoped-for result. Lot documents, when published, describe tests on an identified sample. They are not a warranty of results.
How to contact us
Use [email protected] or the contact page. Shipping questions are on the shipping page.
For laboratory and research use only. Not for human consumption.