I am very rarely impressed by the credentials and/or effects of a commercially available supplement. However, 6-OXO is one of those few products that made my list. Not only was I able to find a published study that demonstrated the main chemical is 6-OXO was able to significantly increase the amount of free testosterone and reduce the amount of a certain estrogen in the body, but when I tried it, I actually noticed a significant difference. Though it is marketed as an estrogen reducer, it is actually far more effective as a testosterone booster. (more…)