various supplement brands
Find it on AmazonAffiliate link — we may earn a commission at no extra cost to you.
“I do use L-tyrosine from time to time for enhancing focus and motivation, but I want to emphasize from time to time.”— Andrew Huberman
“at a subjective level, I can feel a meaningful increase in alertness and focus from 500 milligrams of L-tyrosine”— Andrew Huberman