Met-RX sold nutritional supplements, including a line of androgen supplements under the brand name "Substrate Solutions." The products were advertised to increase strength and muscle mass, and to be safe, produce no or minimal side effects, and did not pose the health and safety risks of anabolic steroids. One of Met-RX's androgen supplements also included caffeine and ephedrine. The FTC alleged that Met-RX had violated the FTC because they did not have a reasonable basis to substantiate their representations about the lack of side effects, noting the effects of ephedrine.

Case and case summary is also available online at: http://www.mlmlegal.com/legal-cases/FTC_v_MetRXUSA.php