They claim that their skin medica tns serum is authentic, but they are not a registered retailer. When I got my bottle, some of the writing was etched off and it did not take even 1 pump for product to come out. The writing was also a bit off center. Customer service was also poor, when I called to complain, they said that they needed to inspect it before issuing a refund rather than refund upon receipt of the product like any other reputable company. Do not waste your money here. If you are going to spend the money for this product, go through a registered dealer so you know the product is legit.