Express Checkout: Order in Two Taps
No checkout page.
That’s the whole thing.
Express Checkout remembers your shipping address, your payment method and your shipping preference — then shows you the live shipping cost and the final total before anything is charged.
If you have ordered from us before, you have already given us everything a checkout page asks for. Express Checkout stops asking again. You will see a Buy now button next to Add to Cart on any product page, and in your cart. Tap it, check the numbers, place the order.
Turning it on
There is nothing to set up in advance. The first time you tap Buy now, the panel asks you three short questions and remembers the answers.
Accept the terms once, save, and you are done. Every order after that is two taps.
On a product page, Buy now orders that product. Anything already in your cart stays exactly where it is, waiting for you. If you would rather order everything in your cart at once, open the cart and use the Buy now button there instead — it tells you how many items it covers.
Paying by Venmo, Zelle, Chime or crypto
These are manual methods, so placing the order is only half of it — you still send the payment. As soon as the order is placed, the confirmation panel shows the same instructions you would normally get on the receipt page: where to send it, the exact amount, and your order number as the reference. Your order number is what matches your payment to your order, so please always include it.
Changing it later, or switching it off
Everything lives under Express Checkout in your account. Change your payment method or shipping preference there at any time, or switch Express Checkout off entirely — the Buy now buttons disappear and checkout goes back to normal. Nothing else about your account changes.
Express Checkout has just launched. If anything looks wrong, does not add up, or simply will not work for you, please tell us — we would genuinely rather hear about it. The normal checkout is always there and works exactly as it always has.
For laboratory research use only. Not for human or veterinary consumption.