
“the amino acid precursor to dopamine L-Tyrosine, something that I occasionally do to enhance dopamine levels for sake of work or energy, 500 milligrams or 1,000 milligrams”— Andrew Huberman
“500 milligrams or 1,000 milligrams even of L-Tyrosine. Sometimes I'll combine that with other things like Alpha-GPC.”— Andrew Huberman
“particular phenethylamine is very effective in doing that. 600 milligrams of that has a brief effect lasting only about 30 to 45 minutes.”— Andrew Huberman