My uncle is 47 and has been bodybuilding since he was 17. I'm a ripe 20 years old, and I wouldn't be surprised if he could still kick my ass. He has never taken any supplements except for mere proteins and amino acids, but is now looking for an extra boost. Today he was talking to me about how he is getting discouraged because he can no longer make any gains, and is continually dropping in strength and muscle size- which he attributed to his dropping testosterone levels. He asked me to research a testosterone booster that would help him out. Can anyone recommend any good test boosters for a 47 year old? Also any suggestions about any type of supplement that would help him would be greatly appreciated!!