Leading Edge Health is the company behind TestRX and many other natural supplements that are very popular globally. Products of Leading Edge Health are 100% natural and without side effects. Few famous doctors worked with the company and reviewed their products. One of them is Dr. Steven Lamm, the medical director of the Preston Robert Tisch Center for Men’s Health and specializes in internal medicine. The company gives you a 67-day money-back guarantee, which means that the company is confident in its product.