PURE ORIGINAL INGREDIENTS L-Tyrosine (730 Capsules) No Magnesium Or Rice Fillers, Always Pure, Lab Verified

I prefer tyrosine over coffee as there are no draw backs to metabolism . Like coffee crashes , I never knew mechanisms but it is related to thiamine deficiency or dependency. Coffee contains a anti-thiamine molecules that retard thiamin absorption and contribute to caffeine crashes. Tyrosine will not crash you, but low B vitamins will so consume B vitamins and magnesium and tyrosine to keep energy going no fail. Just refresh every 3 to 4hrs the nutrients mentioned.

It's a very good buy. I highly recommend!

I was having problems focusing and read that these could help out. Yes they do!

The good thing is there are a lot of pills... for I need around 4 to feel any effect.

The price for the quantity is great, however the quality of the product is questionable. My order arrived with the bottle full of dust inside, when I opened it I realized that it was due to one of the capsules being opened and spreading all over the interior. The container inside is not sealed, it is only closed and has a plastic to guarantee that it has not been opened. My packaging came with an uneven orange color that resembles sun-bleached paint.

These are INCREDIBLE, I feel the “Lucy effect” (that scarlet Johanssons movie where she’s so smart and pretty much a super hero. Yes that’s what I feel when I take this. I can focus so well!!

would order again

I really love getting this in a large size. It appears to work as well as other brands. It really helps when I feel stress.