I've taken the supplement ZMA previously to boost my gym gains (for those of you that do not know, it is a mix of Zinc, Magnesium, and Vitamin B - nothing shady about it). Supposedly it naturally increases testosterone production, with the main driver being zinc which is required for production of that particular hormone. The previous times I had taken it, I gave up after a month because of bad acne on my forehead and back, places where I usually had clear skin. It was not worth a bit of extra iron moved for a zit problem. I have taken it again during my trip to Asia, more of as an attempt to prevent muscle mass loss as I do not touch a weight for 2.5 months. Well, for some reason, this time around it has really, really worked noticeably. I can't actually say anything for muscle mass, because I have lost weight due to sickness, lower caloric intake, and no gym time. But as far as sex drive - jesus fucking christ. I feel like I am permanently on Viagra. I get boners from so much as glancing at a semi-attractive woman. I get boners from thinking about having sex, even if for just a brief moment. I have spent more time walking around trying to hide my boners than I have spent walking around limp. It's really hard not to think about sex all the time and it can definitely impair rational judgment on such matters. On one level, it is exciting having the sex drive of an 18 year old that has just overdosed on Cialis, but on the other hand it is making my life kind of difficult - being this horny all the time, that is. I know that my protein-lacking diet in Asia may have caused a zinc deficiency that is being corrected, but even when I was eating well in New York I was never this bad. Maybe it's just the absence of stress from not working combined with hot asian girls, but honestly there is no way this can be placebo. If you want something to naturally boost testosterone, or at the very least something to make you a sex-crazy maniac, I recommend you try it. I am taking the recommended dosage of 3 pills a day from the VitaminShoppe BodyTech brand.