hair loss with male testosterone enhancement

I am 68 yrs old, very fit, weight lifter, and runner. I have been taking Cialis 60mg usually about 3 to 4 times a week. I also take male enhancement pills.Since I got serious about my sex drive and enjoy it almost daily, I have noticed my hair getting thinner.Could it be the Cialis, or male testosterone enhancements?

 male testosterone enhancements of all kinds are known to cause hair loss