Testosterone is an important hormone. It can boost libido, increase muscle mass, sharpen memory, and bump up energy. Yet, most men lose testosterone with age. A reported 20 to 40 percent of older men ...

Xyosted (testosterone enanthate) is a brand-name injection prescribed for testosterone deficiency in adults. The cost of the drug, with and without insurance, can depend on several factors, such as ...

In the U.S., testosterone is a controlled substance, so you’ll need a prescription to acquire it. While you take it, your provider will order blood tests and monitor you closely to ensure treatment is ...