Don't waste your money on most aminos because most of them are just digested and used in protein synthesis. Instead just eat a well balanced diet with enough complete protiens in it. I only use two GABA and glutamine. GABA is taken 30 minutes preworkout and 30 minutes before bed. Glutamine is added to a
protein shake immediately postworkout.
Each one has a different way it needs to be taken so that it does not go to waste so be sure to read the directions on the packaging and follow them if you do decide to use them.