If for any reason your products are defective, damaged or you have made the wrong selection, please call or e-mail customer service within 30 days of your purchase to arrange for the product's return. Please note that we cannot accept any returns of products that have been opened unless they are damaged during transport. Call us or e-mail us if you want to sample a product before buying. The Obagi line of products does not provide any samples. We regret that 2-Day and Overnight Shipping expenses are non-refundable unless a product is clearly defective.