NOW Supplements, L-Tyrosine 500 mg, Supports Mental Alertness*, Neurotransmitter Support*, 120 Capsules

I never write reviews, but felt for this one I would. I did my research beforehand as I had read it was a good one to take for mental clarity, focus, sleeplessness and overall happiness. I have been taking it for a month now and here is my own results and observations since I started. My mental clarity and focus was improved. I have never been diagnosed with ADHD, however I have always been one to get easily distracted and never finish a project unless I’m under fire. This hasn’t been a problem per se, but since having kids it’s been harder. I get interested in something and start it, but then something else comes up and I move on and never go back. The same goes for work. I work on a project and get asked a question or for help with something and then I lose focus and motivation so it’s hard to get going again. This helped. It’s not a miracle drug so don’t expect that, but it’s makes the transition easier and getting back on track easier. It’s what I needed. My sleep wasn’t necessarily bad, but it also improved. I’ve been wearing a FitBit to bed for years and my awake time was consistently more than 10% of my total sleep time (time from when I went to bed to time I woke up). Most of this 10% was time I was technically sleeping, but my body registered “awake” even if I didn’t remember it. Since taking the l-tyrosine it’s been consistently below 10%. Again, it’s not a miracle drug, but any improvement I attribute to the one change I made to myself and that was taking this. Also, my sleep score went from a below 90 average to above 90. I feel good when I wake up now and don’t feel the need for a nap mid-day so that’s a plus! The overall happiness was something that I read, but wasn’t something I struggled with or cared about, but I did see some improvement there too. Could it be the better sleep or the happiness from staying focused more? Finishing more projects than usual? Possibly, but either way I’ll take it! What I didn’t anticipate was the curbing of any sugar cravings and this was wonderful! I always want something sweet. I crave the sweetness, but since taking this supplement I don’t crave the sugar. No chocolate, no cookies, no ice cream. I’m not saying I didn’t indulge once in awhile, but I didn’t crave it anymore. With that being said, I did manage to lose 5 lbs this month! With this being said I will say that I read taking the L-tyrosine with a B6 supplement helps it be more effective and so I did take my Vitamin B Complex, L-tyrosine and my Vitamin D all at the same time. The B Complex and Vitamin D I had already been taking and I only added the L-tyrosine in the last month. I’m not sure if it would work differently without the B Complex or not, but I figured I’d mention it just in case. Hope my feedback helps anyone else considering taking this!

So I got these pills 4 days ago and have only taken 1 a day. The first time, I almost immediately got a headache. Now I have suffered from migraines in the past, on and off, but I came here to search for reviews that mentioned headaches or migraines and found quite a few, and they were recommending avoiding this supplement. But I ordered this supplement because I really need help with my depression, so I wasn't going to give up that easily. I noticed some reviewers mentioning MTHFR which is an issue for me. Looking it up, it turns out that people with MTHFR have issues metabolizing l-tyrosine because it requires folate (also copper and vitamin C). Since most of what we get (fortified foods and the average vitamin supplements) contains folic acid (which is not natural) and our bodies have a hard time using that where folate is needed (and some can't use it at all), the l-tyrosine doesn't get rapidly metabolized as it's supposed to be and lingers. That is what I read causes the headaches/migraines. I have a methylated B complex. So as a test, I took one of those pills (and the daily dosage recommended is 2, but I've never taken that much) and the headache went away. I also have vitamin C (sodium ascorbate powder) and would have tried that next. I was actually kind of hoping to avoid taking another pill everyday. I'm a slacker in that regard. My husband has exactly the same methylation issues as I do and he got a migraine. The methylated B complex also worked for him. I didn't tell him beforehand that it would. In fact, he assumed I still had the headache. So to those who are getting headaches/migraines from this product, you could have problems metabolizing the l-tyrosine because of methylation issues. If you have already done DNA testing and you've gotten a report from Promethease, check it for MTHFR. If you've done testing but don't want to pay for Promethease, use codegen dot eu instead. If you already have vitamin C at home, give that a shot too. Maybe you're already good on methylated B vitamins but you're not getting enough vitamin C. And less likely is low copper, but I have heard of it. Best to get copper levels tested before you go supplementing with it though. Don't mess around too much with metal levels. As for how well the product works, let me just say wow, the absorption rate is incredibly fast. I feel very mellow, and even though I can still get angry, I don't feel like it consumes me like it used to. I can calm down quickly and easily without issues. My husband seems quite mellow now too. I haven't asked him how he feels. I've just been observing him. He doesn't seem to get agitated easily on this. If he does get angry, it stops almost as soon as it starts. I don't think I've heard him swear at all in the last 4 days. He's much more pleasant to be around which helps my mood as well, but I can tell you I don't usually feel this mellow. I even found myself smiling and singing and dancing randomly. I seem to have more trouble getting to sleep at night even though I take it as soon as I wake up and nowhere near bedtime, but my husband has been going to sleep earlier and actually talking about feeling tired. So there it seems to be having opposite effects on us. I don't mind though because my mood has not been this good in years, and it's amazing not seeing my husband stay up all night like he used to. I'm going to use melatonin at night long enough to see if it can help me get back on track. At least once I get to sleep, I do sleep well, even when I don't sleep enough. Usually, if I woke up after 6 hours of sleep, I felt like someone rubbed sand in my eyes and that would last until I did get enough sleep.

As a SAHM and wife, I absolutely love this product! Gives me the mental focus and clarity I need to go through my day. Boost my mood and I take 2 a day. Once in the morning and another in the afternoon. It’s apart of my daily ritual. They are super easy to swallow, has no smell, and 120 lasts me almost 2.5 months- 3 months. Has helped with my low Thyroid. Don’t recommend taking before bed maybe a couple hours before. Helps with stress, focus, and mood. Great quality and inexpensive. I say very effective!

I’ve been using NOW Supplements L-Tyrosine 500 mg for a while now, and while I do think it has its benefits, it didn’t completely blow me away — which is why I’m landing at four stars instead of five. Let’s start with the positives, because there are definitely some. I noticed a subtle improvement in mental alertness and focus, especially on days when I felt mentally sluggish or overwhelmed. It’s not a stimulant feeling — no jitters, no racing heart, no wired energy — just a smoother, calmer sense of mental clarity. I felt a bit more “online,” if that makes sense. I like that this supports neurotransmitter function rather than acting like a quick fix. It feels more supportive than forceful, which I personally prefer. On busy or mentally demanding days, it seemed to help me stay more focused and less foggy, especially when taken consistently. The capsules are easy to swallow, and the dosage feels reasonable at 500 mg. I didn’t experience any negative side effects, stomach issues, or weird reactions, which is always a big plus when trying supplements that affect mental function. NOW Supplements is also a brand I generally trust, and the quality feels solid. The bottle is straightforward, clearly labeled, and gives you a good supply with 120 capsules. That makes it a decent value, especially if you’re planning to take it regularly. Now for the reason it’s not a full five stars: the effects were subtle. Helpful, yes — dramatic, no. I didn’t experience a huge boost in motivation or a noticeable surge in energy. It was more of a gentle support than a noticeable change. If you’re expecting a strong, obvious mental kick, this probably isn’t it. That said, I think this works best when paired with good sleep, nutrition, and realistic expectations. It’s not a magic pill — it’s more of a quiet helper in the background. Some people may notice more benefits than others, depending on their baseline and needs. Bottom line: four stars because this supplement is well made, easy to take, and offers subtle mental support, but it didn’t feel strong enough for me to call it a game changer. If you’re looking for gentle cognitive support without stimulants, this is worth trying — just go in knowing the effects are more understated than dramatic.

I wanted to wait until I had used this awhile before I gave a review to see how the effects last. I was very skeptical when getting this product because I was skeptical that something over the counter could make as big a difference as some people claimed. I researched a lot about its effects and how it works and since it made sense, I thought I would give it a try, but honestly didn't expect much. For years I have suffered from a "foggy head". It doesn't seem to matter if I sleep 8 hours a night, or 4, or 10, I always wake up tired and with brain fog that persists. Along with that, I've also dealt with depression over the years and some major irritability. As I tend to be pretty sensitive to most medications, I wanted to start out with a smaller dose to see how it would affect me. I opened the capsule and dumped half the contents out, then closed it again and took it with a glass of water. I had eaten about an hour before. I noticed some mild effects and that at work I was breezing through things that usually took me a lot longer to do. There was no stomach upset at all. After reading up on it, I saw that its most effective if taken on an empty stomach, but talking anything on an empty stomach makes me nervous as I've had so many meds make me incredibly nauseous if I didn't eat. The next morning I again dumped about half of it out and took it on an empty stomach and noticed a big difference. Within maybe half an hour the brain fog cleared and I felt truly alert for the first time in years with no jitters or stomach upset at all. The effects lasted until the afternoon and I took another half which got me through the rest of a long day at work. That night I slept great, and felt pretty good when I woke up. Since then I take a full one immediately when I wake up and before I eat anything. I've noticed if I eat anything high in protein before I take it the effects are greatly lessened. This is because l-tyrosine and protein use the same transporter to the brain, so it competes with the protein if you have them both at the same time. Taking a full one every morning keeps me alert and focused all day with no nervous energy, no anxiety, no jitters and no crash. I've been on this same dose for several weeks and it still works just as well. This is now a permanent part of my morning when waking up. I was amazed at the huge difference it made in my ability to concentrate, my focus, energy and my mood. It keeps me feeling pretty uplifted and happy. My life seems much better since I started taking this. This is the only brand I've used, so I have nothing to compare it to, but I will stick with this one. If it ain't broke...

Been using this supplement for years

I take this brand of l-tyrosine daily, every morning, and it has helped me noticeably with my energy and anxiety levels. I have a fructose malabsorption problem that interferes with my uptake of certain neurotransmitter precursors, and supplementing with this on an empty stomach seems to help me focus and feel a little more motivated. I do take a much lower dose than recommended - I split the contents of each capsule up into four capsules, effectively taking 1/4 of a capsule every day, about 125mg, but I am so sensitive to medications/supplements that I typically take 1/4 to 1/3 the regular-strength dose for really everything (including things like ibuprofen and claritin). Taking a larger dose of tyrosine has a noticeable effect on my libido and also makes me feel extremely calm (and a little uncoordinated). As long as I wait an hour to eat after taking a small dose, I have mild, but positive effects. (Eating right away means I have no noticeable effects; I assume this is because other amino acids in the food I eat have higher priority and out-compete tyrosine.) If I stop taking it for a few days, I don't notice any awful withdrawal symptoms. This seems to be a much more predictable and less dependency-inducing supplement than I have heard L-DOPA to be, although I have not tried L-DOPA myself. On the flip side... I recommended this to my husband, who struggles with lack of focus and motivation (he's in a really thought-intensive occupation, so this is particularly disruptive). He took a full capsule every morning for a week or so. The first few days, he felt like he had a little more energy and motivation, and that he was able to lift a bit more on his workouts; he said it was about the same as a cup of coffee, except without the jitteriness, and the effect was strongest about 2-3 hours after taking it on an empty stomach and lasted several hours. However, after about three days, his mood shifted so drastically that he was really impossible to live with. He became extremely angry, on-edge, defensive, aggressive, critical, negative, and prone to violent outbursts. It was a complete and terrifying transformation; he became a brute, where normally he is a patient, gentle, kind man. It took a few days before I realized what was causing the change, and he stopped taking it. The next day, he returned to being gentle and loving, with no noticeable traces of the monster he'd been. Perhaps he needed a smaller dosage, although we weren't willing to try, and I'm not sure this would have helped. Really, I think his physiology wasn't meshing with the tyrosine supplementation, but I don't know how we would have predicted that before we tried it. Biochemistry is a complicated business. So, do I recommend it? I recommend that if you have difficulty focusing, getting motivated, and dealing with crippling anxiety, you try it, in low doses, and watch your moods carefully. Be prepared for the possibility that you become a raging monster, and if you do, stop taking this stuff ASAP. However, there's a chance that you'll have wonderfully positive effects from it, too, like I did. I say try it and see, just be mindful of what's happening. TL;DR: It made me calmer and more focused in small doses, but it turned my husband into a raging demon with regular-strength doses. Try it in small doses and watch the effects carefully. It may or may not be worth it. It was for me, definitely not for him.

This stuff actually makes a difference in my cognitive function! I had been taking it for over a year, and decided I would stop to save a little money since I didn’t even know if it was doing anything. For a month, I was so bothered every single day by not being able to think of the word I was looking for. It was driving me crazy! Finally I realized that the problem had started soon after I stopped taking L-Tyrosine. I started back, and the problem went away. My husband had never taken it, and was constantly complaining about forgetfulness. He would forget things he needed to take to work, etc. I got him to start taking it, and I noticed the change before he did. It has made a HUGE difference for him. I’m blown away! We take 2 a day.

Ya casi me termino el frasco y no siento una gran diferencia. Sin embargo, el frasco llegó puntual.

ابدا ما بنصح فيه تضيع فلوسك على الفاضي ، كل ماخذه بعمل قلق و يخليني عدواني و عصبي بعكس النتيجة المطلوبة تمامااااا ، ما كملته حتى و ما بنصح احد فيه نهائي

仕事の昼休みや帰った後に来る眠気や気怠さが消えます。ただ集中力とか注意力は変わらないと思います

it's fabulous for humans brains and produce natural dopamine...

飲み始めて一週間ほど、、なんだか元気になってるような、、いつもより若干テキパキ？活動的になれてるような気がします。もう少し飲み続けるもっと変わってくると期待します