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AndroGel ® (testosterone gel) 1% and % are controlled substances, available by prescription, used to treat adult males who have low or no testosterone due to certain medical conditions. It is not known if AndroGel is safe or effective to treat men who have low testosterone due to aging . It is not known if AndroGel is safe or effective in children younger than 18 years old . Testosterone products that are applied to the skin may have different doses, strengths, or application instructions that may lead to different levels of testosterone in your body .
For guys without hypogonadism, a wait-and-see approach may make the most sense. "We just don't have the data to prove that raising testosterone in men who already have normal levels confers any real benefit," says Dr. Robert Mordkin , a urologist in Arlington, Virginia. Furthermore, Mordkin adds, "Natural waxes and wanes of testosterone as we age may have some not yet entirely understood protective effects." In addition to making us better fathers, as the Northwestern study infers, declining testosterone "may lower our vulnerability to prostate cancer at a time in our lives when we're at the greatest risk for it." That said, if you have classic symptoms of hypogonadism – low libido, fatigue, erectile dysfunction – "it's probably reasonable to check your testosterone. And for those guys whose blood levels come under definitions of low testosterone, it's probably reasonable to try the therapy for a while. But that's very different from saying testosterone is the fountain of youth."