For laboratory research use only · Not for human or veterinary use · Purchasers must be 21+

Last updated 20 October 2026

Paying with Lightning

We accept payment exclusively over the Bitcoin Lightning Network: fast, final, inexpensive, and no card data is ever entered on this site.

How it works

  1. Place your order. We show a Lightning invoice (a QR code and a text string beginning with lnbc).
  2. Scan it or tap "Open in wallet" from any Lightning-capable wallet.
  3. The page confirms within seconds of settlement and we email your receipt.

Rate and expiry

Prices are in U.S. dollars. Your wallet shows the bitcoin equivalent at the current rate, which is locked for 15 minutes once the invoice is created. If the invoice expires, start checkout again. Nothing is charged for an expired invoice.

Payments that arrive late

If a payment settles after an invoice has expired we still honour it, or refund it in full if the item has since sold out.

Things to know