Testosterone
"I have MS and the lowest testosterone levels my Doctor has ever seen, and frankly the first two months I've seen libido increase, mood elevation, even hair growing back where it was receding on my scalp line but nothing super drastic, so don't run out and get it for baldness or nothing like that. 

As for applying it, I've found leaning backwards like an desk office lounger like I have in my den slowly under each arm with shirt off and a fan going which I happen to have in the corner of that den, one of those 4 foot vertical Lasko's, and it dries almost immediately.  

I'm hoping improvements continue since I have many problems associated with MS, crippled on my left leg and foot-drop. Any improvements are welcomed with wide open arms!"