Pure EncapsulationsL-Tyrosine - Amino Acid Supplement - for Brain Support, Dopamine & Thyroid Function* - Vegan & Non-GMO - 90 Capsules

I cannot say more good things about this. I am 45 experiencing brain fog, fatigue, night sweats, burn out, terrible sleep and someone told me to take this along with glutathione (core science) in the mornings and i have never felt better. It was immediate, on day one i noticed a HUGE difference. I am always skeptical of supplements and nothing ever works. I went ahead and already ordered my next bottle and getting on subscription of both supplements. I was told that this brand or the quicksilver are the best. The quality matters, there are cheaper options but not sure they would work.

Have been using this product along with turmeric to help with my brain and energy levels.I read where L-tyrosine and turmeric are good for brain injuries (I think I had an untreated concussion from a car accident years ago). I could be wrong, but I have tried numerous products trying to get me to just be "normal".I was always weary, unmotivated, poor memory and focus, and just existing. Since starting to take this product and turmeric, I would say I am about at 80%. I still have a ways to go, but feel this regimen is a huge step in the right direction. (I'm hoping if I get more serious about my eating and exercise habits, that will be the final piece of the puzzle to be back at 100%).

I started taking Tyrosine because my TSH number was a bit higher. Tyrosine is an amino acid (part of protein). I started taking it an hour before breakfast, the same way you are supposed to take thyroid medication. I had so much energy, that I decided to tone it down a little, and take my tyrosine after eating breakfast. I was taking bulk powder, but that involved measuring, and trying to make sure I was getting exactly the right amount for a dose. Then I found this Pure Encapsulations tyrosine -- it is pure tyrosine, without fillers, cellulose, etc. And so convenient. I find that 500 mg (one capsule) is plenty for the full day. I take it after breakfast with my other morning supplements. Thank you Pure! and thank you Amazon for such fast shipping!

This is pure L-Tyrosine. just take TWO on an empty stomach and feel the Motivation and energy within 10-13 minutes.I am and have been a long term user.PURE delivers every time the high quality.I have tried many other Brands of L-Tyrosine and there is NO OTHER BRAND/Company out there that has the high quality Pure consistently delivers.

Very good quality. Arrived in perfect condition, decent price.

I took l-Tyrosine for the first time today. I read that it should be taken on an empty stomach. So I took one capsule this morning before breakfast, then I had breakfast about two hours later.About 30 minutes after taking the capsule, I felt a little nauseated, dizzy, and hot. That lasted about 20 minutes. I felt normal for the rest of the day.I don't know yet if this supplement deserves the credit, but I was more productive than usual today. I was more motivated and focused. My mood was better as well. Not huge changes, but I felt better today than I have in months.

I have to give this product 5 stars because the company has a great history and because I can personally say the product just WORKS!!! I've tried other brands and they don't all get the same good results. I believe this must be because the way an active ingredient is made and what inactive ingredients/excipients are included makes a difference, but ... whatever the case ... this is a superior product.I'm reluctantly giving the product five stars because Pure Encapsulations was recently purchased by Nestle which ... doesn't have the same great reputation as Pure Encapsulations so hopefully, the corporate culture and dedication to a truly great product (not just great advertising) of Pure Encapsulations affect Nestle more than the other way around.... time will tell.

First, I felt great. I feel like I have a ton of energy after taking these and more stamina.But I have to say I did it without doctor or dietician advice and my TSH (free T4 reflex) blood test looks like I have hyperthyroidism!Check with doctor or dietician! Don’t just buy and use without knowing what you are doing to your system. It’s not a free ride, even if you have healthy kidneys.