Skin Revival is the cheapest place i have found that sells Rationale Skincare products (10% cheaper, plus i got another 10% off with the coupon code "facebook" for my first order). Shipping is free and really fast; I ordered on a Saturday and received my order on the Monday morning. I got two free Rationale samples, too. Their customer service is fantastic; I had a bad reaction to the Rationale Eye Specialist cream (due to it containing retinol) and Skin Revival issued me a full refund even though i used the eye cream for a couple of days. I can highly recommend Skin Revival if you are after medical grade, quality skincare.