Returns & Refunds

Unopened, undamaged vials may be returned within 14 days of delivery for a refund less shipping.

For reasons of chain-of-custody and material integrity, opened vials cannot be returned or resold. This is standard practice for reference materials.

If your own analysis materially disagrees with the certificate for a lot, contact us with your method and results. Where we can reproduce the discrepancy we will replace the lot and re-run the assay at our cost.

Report within 72 hours with photographs. Verified damage is replaced at no charge, on the next dispatch run.

Refunds are made by the method you paid with. Bank transfers are refunded by ACH to the account the payment came from. Card payments, where offered, are refunded to the card.

USDC payments are refunded in USDC on the Ethereum network, to an address you confirm to us in writing. We do not refund automatically to the address the payment came from, because withdrawals from an exchange are sent from shared wallets that are not yours.

If a USDC payment does not match the amount shown for your order, contact us: we will either take the balance or refund what was sent.

Email us with your order number and the lot in question. Do not ship anything back before receiving a return authorisation.