it's not tyrosine.<br /><br />the price (much cheaper than all other tyrosine supplements for sale on Amazon) seemed too good to be true, so i ordered some (much more expensive!) tyrosine powder from a different supplement manufacturer i trust and have used for many years.<br /><br />this is a much softer (flour-like) powder whereas the trusted tyrosine is grittier, and this has a much lower density, a teaspoon weighing around 1.08g, whereas the same measure of the trusted tyrosine was around 1.44g.<br /><br />also, when i took the trusted tyrosine using the same scoop i'd been using to take this, i experienced overheating (which makes sense because tyrosine is used to make noradrenaline, the sympathetic neurotransmitter, which stimulates thermogenesis), whereas i had not gotten that effect using the same scoop of this powder.<br /><br />price was too good to be true, i should have known better. maybe this is flour, or tyrosine mixed with flour. either way, i'm not buying it again; i'll just spend more for the real thing from a different manufacturer.

Not sure this is real L- tyrosine . I have a medical condition that responds very well to the supplement it did not respond to this powder, when I went back on to the Now brand capsules It immediately responded. You can make your own judgment.

Good product. My mood has lifted and I have MUCH better energy.

Suffered from a crippling painful muscular condition that was slowly contorting my spine. Lots of doctors visits, specialists, scans, x-rays, physical therapy, etc. providing no answers and no help as I gradually got worse. Ended up in a wheelchair for six months until finally being diagnosed with DRD (Dopamine-responsive dystonia). My daughter has also been diagnosed with DRD. Prescription Carbidopa-levodopa was initially effective in treating my DRD and got me out of the wheelchair. My spine even straightened out over time but I still struggled with back pain. After reading up on DRD I found that its symptoms can be caused in some people by a Tyrosine deficiency. So I tried taking an 1/8 of a tsp. mixed in water each day and found I no longer need carbidopa levodopa and rarely have any back pain. My daughters doctor encouraged her to try it since it worked for me and she has had the same results. I hope this can help others!

Been taking this for about six weeks. Energy is more consistent and I feel less sluggish in the afternoons. Happy with the purchase.

Third-party tested, clean label. That's what I look for first. Actually works too, which is a bonus.