i have used a plethora of nootropics, from the simple and imho weak piracetam (in some countries it is on prescription only,like Poland) through noopept with choline and the complete stacks of 5-7 different compounds together. I love these babies, help me concentrate, reasearch when writing an article is lighting speed, and translation from english-polish is much easier after living 30 years in Canada then when not using them i noticed.
http://xzfsg4xc.megaph.com/
The test in the link above helped me to choose which ones will work better for me.
