

💡 Unlock your brain’s full potential with L-Tyrosine!
L-Tyrosine 500mg by NOW Foods offers a high-quality, potent amino acid supplement designed to support mental clarity, focus, and sustained energy. With 120 capsules per bottle, it provides a convenient 4-month supply trusted by thousands of professionals seeking cognitive edge and calm productivity.





| ASIN | B0013OUPSE |
| ASIN | B0013OUPSE |
| Amazon 売れ筋ランキング | ドラッグストア - 4,839位 ( ドラッグストアの売れ筋ランキングを見る ) L-ロイシンサプリメント - 1位 |
| Amazon.co.jp での取り扱い開始日 | 2011/4/23 |
| おすすめ度 | 4.0 5つ星のうち4.0 (14,891) var |
| カスタマーレビュー | 4.0 5つ星のうち4.0 (14,891) var dpAcrHasRegisteredArcLinkClickAction; P.when('A', 'ready').execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( 'acrLink-click-metrics', 'click', { "allowLinkDefault": true }, function (event) { if (window.ue) { ue.count("acrLinkClickCount", (ue.count("acrLinkClickCount") || 0) + 1); } } );… |
| メーカー | NOW社 |
| メーカーにより製造中止になりました | いいえ |
| 商品モデル番号 | 0162 |
| 対象年齢 | 大人 |
| 対象性別 | ユニセックス |
| 製品サイズ | 11.18 x 6.1 x 3.05 cm; 45.36 g |
| 製品サイズ | 11.18 x 6.1 x 3.05 cm; 45.36 g |
Y**A
You really find that calm in your thoughts and clarity. This is a real thing.
A**A
気のせいか、、
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
D**A
フェニルアラニンよりは
同ブランドのフェニルアラニンも飲んでるが、フェニルアラニンよりはチロシンのほうが効果を感じる。ていうかフェニルアラニン飲んでも何も無い。チロシンは飲むとちょっと元気になるような気がする。
大**幸
問題なく使用できました
問題なく使用できました
S**R
I decided to try l-tyrosine to address my difficulties with focusing and working efficiently while coping with chronic sleep deprivation. I have been taking it for about a month, 1000mg before breakfast and 1000mg before lunch. It helps quite a bit, and improves my mood. I can really tell the difference if I skip a day. I would caution against taking this too late in the day as it can cause insomnia (I was up until 6am after taking 1000mg at 7 pm)
6***
効果があるのか。。。
正直、効果があるのかないのか。。わかりませんでした。
D**T
個人的に劇的効果
飲み始めて1ヶ月、毎日朝に服用。 飲み始める前は、以下の症状 ○ストレス常態下に置かれないとやる気にならない。やりきった後の燃え尽き感 ○特に休日や大きな仕事をやりきった後にに訪れる倦怠感、そして頭痛、吐き気 (自律神経が乱れる感じ) ○周囲の雑音が気になる時がある。 (思考が纏まらない。) 飲み始めて以降 ○集中力の持続、やる気の持続 →残業、徹夜、休日出勤が苦にならない。 ○倦怠感、頭痛の消失 →頭痛薬からの解放 ○周囲を意識しなくなる。 →神経がすぶとくなった感覚 変化が顕著過ぎて、気持ち悪いぐらいです。まだ、1ヶ月ですが、これが継続すれば、人生の質が劇的に上がると考えています。 以下、追記 集中状態が継続するため、不思議な疲労感があります。 以前は、集中→精神摩耗、思考ストップでしたが、集中が継続するため、疲労感がどっとくる(しかしメンタルは無事) という感じです。 以下、半年経過 継続して飲み続けた為、上記集中力継続がある程度常態化 この間、ストックが枯渇した期間が半月ほど生起しました。 「チロシンがない」という意識は無いつもりでしたが、焦燥感、不安感、倦怠感、思考発散。。本来の自分?に逆戻り。ふと「そういえばチロシンが切れている」と気がつき、急遽、使用している後輩に分けてもらうと。。。 効果抜群。改めて怖いですね。
2**2
肉体と頭脳が健康な人にとって、、、
脱力感と疲労感が本当にすごい。そういう意味では効果に驚く。 妙にテンション高く笑いまくったかと思うと、突如腹立って切れ散らかす。 普段の自分は脳内物質が多めで、過剰になった場合の状態が理解できたので、貴重な体験だった。
M**A
Ya casi me termino el frasco y no siento una gran diferencia. Sin embargo, el frasco llegó puntual.
G**N
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
L**O
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.
V**D
Estou usando-o há alguns dias para melhorar meu humor. Funciona muito bem, tomo dois por dia, um pela manhã e outro na hora do almoço.
R**J
It's very effective for people with adhd. Highly recommended.
Trustpilot
4 days ago
3 days ago