between 40 mcg and 100 mcg depends on how you respond to it. I dont think you need to go with recptor grade media grade is fine it works just as well :) and costs much less. I love it!
the war on drugs is a major waste of resources that would be much better spent in education and supporting physical fitness. Most children in fith grade can not pass the presidential physical fitness test. They can barely do one push up and cant even run for a quarter of a mile. Yet we are...
wouldent hurt to take a gram of tyrosine 3 times a day it will increase metabolism some but that will help force the protein into your muscles too so increase protein too.