These are mostly on the mental side of things. I'd say about 95% mental, 50-60% sexual (didn't test it, girlfriend wasn't feeling well). I'm assuming (from what I've read), that the sexual sides are the last to go away.....those are the slowest improvements I've had.

Also, I tried caffeine and had no problems with it. Taking all my herbs with coffee afterward now, and I can tell a major difference. Thanks for the heads up on that CD.