Nice to get going. Small amount right after waking up, go back to sleep if I feel like it, and wake up 15 or 20 minutes later (with an alarm, of course). I usually combine it with Coluracetam.

Mood lifting. I guess it could be left out, but as long as you don't take too much from the other racetam's, I guess it's ok.

In case of deficiency. Have not noticed any improvement after a month, so I might discontinue it.

To increase sleep quality. Dosage indicated in the package says 2 grams, but that is way too much. I found 200mg to make me feel fresher in the morning and it's not too much, so I don't have trouble getting up.

2.5mg. Could not find any lower. It also has valerian root. Taken an hour before intended sleep time gets me sleepy and in a good setting to go to sleep. More dreams, so that's nice. Definitely improves sleep quality.

10-15mg. Sublingual. It's a good acute mood-booster. It's a new addition, but chronic effects look promising.

10-15mg. It's the jewel of the crown; what makes the stack work. Taken twice a day. It takes around five weeks for it to work at its best; you might feel it working since the first couple of days, but starts shinning after a month. Increased motivation, increased mood and increased feelings of happiness. At the five week point, the effects go on even if you miss a day of dosing.