This how to use Ulta points online FAQ suggests you ensure that you are logged into Ulta.com with your Ultimate reward member ID. Then, add your items to the cart before checking out, whereby you will be required to fill in your shipping information. You will then be directed to the payment page, and at the bottom of the page, where you will be asked to insert the number of points you want to redeem. That will be the final stage, and you can now checkout!