Hi. If you are looking for a product that is supposedly produced in a Shark Tank, but you doubt its legality, then it probably is not. There are many smaller companies that usually claim to have major deals with the shark tank products. They buy ad space on Facebook, search engines (such as Google and Bing), and on websites. They usually sell skin care products, anti aging products, performance enhancers, CBD, hair loss products, keto, or weight loss products. Most people who have purchased products from these companies successfully receive a refund by calling their bank or credit card company.