Pantron Corporation and Hal Z. Lederman market a product known as the Helsinki Formula. This product supposedly arrests hair loss and stimulates hair regrowth in baldness sufferers. The formula consists of a conditioner and a shampoo, and it sells at a list price of $49.95 for a three-month supply. The ingredients that allegedly cause the advertised effects are polysorbate 60 and polysorbate 80. Pantron offers a full money-back guarantee for those who are not satisfied with the product. The Federal Trade Commission (FTC) challenged both Pantron's claims that the formula arrested hair loss and promoted growth of new hair as unfair and deceptive trade practices. The FTC presented a variety of evidence that tended to show that the Helsinki Formula