Testosterone pellets are a form of hormone replacement therapy (HRT) that is used to treat low testosterone levels in men. Testosterone pellets are small, rice-sized pellets that are inserted under the skin, usually in the hip or buttocks area. The pellets slowly release testosterone into the bloodstream over a period of several months. Testosterone pellets are a safe and effective way to treat low testosterone levels, and they can provide many health benefits. Here are some of the ways that testosterone pellets can enhance your health.