take ALC at around 1 to 2 grams a day. I like closer to 2. The powder from BAC works great and is real cheap, its definetly best on an empty stomach especially right in the morning, and in conjunction with ALA or r-ala (I use BAC's ALA). It took a couple weeks to kick in, didn't really notice anything and then one day felt kind of like I was on ritalin. I am a big fan now.