Don’t waste your money on NALT (N-Acetyl L-Tyrosine). The bioavailability is remarkably poor. If you want to supplement Tyrosine, might as well get the (usually) more cost-effective and more bioavailable L-Tyrosine.

Depends on the person. I prefer NALT, but some people like L-tyrosine better. The idea that NALT is useless has been said for years and years, but the anecdotes don't match it. That is a 30 year old study. I too assumed NALT was shitty waaaaaaaay back before I even started a nootropics company. However, then I personally tried each, and NALT was much better for me personally. This is why we offer both. I much prefer NALT. Other people prefer L-tyrosine. Everyone is different. However, the idea that NALT is useless or a waste of money is silly.