Let me be more clear than I was above Joe . What I am saying is that Human Chorionic Gonadotropin (HCG) as a stand alone treatment over the long haul for the purpose of raising test levels is a bad idea. It has it's place in testosterone replacement therapy (TRT) to help maintain some testicular function and size. It also has a place in with using AAS and in helping speed recovery on that front.
At 60 his best bet, assuming he has compromised T-levels, is going to be to get put on testosterone replacement therapy (TRT) and monitored as he goes with blood work by a professional.