What is the difference between the different prefixes on phenylalanine. I remember the Kowles guy saying DL is easier on the pallet. I can vouch for that. But as far as enhancing the activity of depreny,l as he alludes to in Smart Drugs II, is one from betther than any of the others ?[leaving taste out of the question] Do the prices vary much between them in bulk amounts?
Thanks loads
Ron