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

Excelente Producto. Soy Hipotiroidea, tengo Hashimoto y Sjogren, MTFHR 6c 77 t heterocigodo y tengo un cerebro muy activo pues soy HSP y mi desgaste mental en el día necesita fortalecerse.Lo tomo no para tiroides pero si como apoyo a mis neurotransmisores ya q es un aminoácido precursor clave en la síntesis de varios neurotransmisores importantes. Es como la “materia prima” que el cuerpo utiliza para fabricar ciertas sustancias que regulan el estado de ánimo, la motivación, la atención y la respuesta al estrés. Lo tomo solo dos veces al dia en la mañana 30 mins antes del desayuno temprano y luego en el almuerzo mas tardar 1 pm ya q en la tarde no favorece..Realmente quisiera una dosis un poquito mas baja como de 250 mg pero no he encontrado.La L- Thyrosina no es tan efectiva para tiroides pero si Favorece la producción de neurotransmisores bajo demanda, especialmente en condiciones de:• Estrés• Privación de sueño• Sobrecarga cognitiva• Fatiga✅ Mejora el rendimiento mental bajo presión (por eso se estudia en soldados y pilotos).✅ Puede apoyar el estado de ánimo y la motivación, especialmente si hay bajos niveles de dopamina o norepinefrina.⸻¿Cuándo podría no ser recomendable?• En casos de hipertiroidismo, porque también es precursor de hormonas tiroideas.• Si hay ansiedad severa, puede aumentar un estado de hiperactivación.• En personas con trastornos debe consultar con un mèdico.

These definitely help to boost my Dopamine and make me feel happier and more energized. I pop one on an empty stomach right when I wake up and another with my coffee about an hour later. Just remember to get enough of the other amino acids from protein throughout the day too, to avoid any amino acid imbalances!

Works just as it should. I’ve been taking NOW Foods L‑Tyrosine 500 mg to support mental alertness and overall focus, and it delivers. The capsules are easy to swallow and don’t upset my stomach. I’ve noticed sharper concentration during busy workdays. Definitely a product I’ll reorder.

If you have ever taken Adderall or Vyvanse or some kind of ADHD medication and you are looking for something to replace it and have the same effect, it’s never going to happen with ANY product you can find on Amazon, those aren’t meant to be able to be replaced by an over the counter pill, with that being said if you are not used to having a prescribed Med this might do you wonders, it’s worth a try, 4 stars

Why did you pick this product vs others?:Great supplement now products are all great

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.