Sports Research Double Strength L-Theanine Supplement - Suntheanine Softgels for Focus, Relaxation & Alertness - Non-Drowsy Support Made with Coconut Oil, Non-GMO & Gluten Free - 200mg, 60 Count

I'm a fifty year old health care provider who will always remain skeptical of any nutritional supplement making bold, 'life-changing', or disease modifying claims or statements . I like to place my faith in conventional medicine, and prefer to see evidence of successful scientific studies before I feel comfortable recommending any product to a patient, friend, or family member. I purchased this Suntheanine Supplement on Amazon as an experiment a few weeks ago, and chose it mainly because of the overwhelming tide of other positive reviews. Over the past few months, I have been seeking a safe and 'natural' nutritional supplement to help me with some anger management and 'irritability' issues I sometimes have in my workplace environment. Patience with difficult people has never been one of my strengths, and my daily irritability is made all the worse by my caffeine consumption. To make a lengthy story shorter, I take a 200mg Suntheanine capsule one hour before work and--astonishingly--I am alert, focused, and relaxed throughout the course of my eight hour work day! I was stunned and pleasantly surprised that I had finally found a supplement that did exactly what it claimed---and more. I was elated and recommended the product to a fellow 'highly strung' colleague of mine who, after using Suntheanine for several days, informed me the product made him feel 'happy' and relaxed for the first time in a long time. It was important for me to have another health care professional confirm what I suspected and have the same-- or at least a similar--positive response to the same product. I had to rule out the role 'positive thinking' played in this experiment of mine. I have restricted my caffeine consumption a bit, but the oddest sensation I've noticed is that even after consuming copious amounts of coffee or caffeinated soda, I am still calm, alert, focused, and relaxed. I have read that theanine stimulates the production of nitric oxide in endothelial cells. This would cause blood vessels--particularly those in the heart--to dilate or relax. This action is important because many coffee, tea, and soda drinkers have related that theanine seems to work WITH caffeine to help promote concentration on mental tasks, inducing a state of alert calmness WITHOUT the unpleasant effects of caffeine overstimulation like; anxiety, irritability, repetitive behaviors,etc. Alpha brain wave activity increases and Beta brain wave activity decreases, but this is probably more than any of us needs to know about this supplements in vivo activity. Theanine is also purportedly effective in preventing certain forms of cancer, and may have some application in the future vs Alzheimer's disease. More studies need to be performed, but this is a supplement that obviously has multiple health benefits. It is for these and so many other reasons that I highly recommend this supplement for those seeking a unique product capable of inducing mental clarity and relaxation without inducing drowsiness. I am the same person I always was before Suntheanine, but these days I find that I am much more relaxed throughout the course of my hectic days at work. 5 stars for this life-changing supplement!

I’ve had intense anxiety (social and general) for as long as I can remember. Years ago I turned to alcohol to help—a couple of drinks when I felt anxious, or before a social situation calmed everything down, and I felt as though I could manage. But it quickly spiraled out of control to the point where I wasn’t drinking and getting drunk, but instead “dosing” throughout entire days and evenings. The moment I’d try to stop the world would come crashing down and it became a choice between feeling “normal” by drinking something, or dealing with nonstop racing heart, shortness of breath and severe depression. Well the latter was absolutely horrible to live with, so I kept choosing the former. I was hiding liquor bottles in the house so I could pop back to a room and take a nip the moment I would start to feel overwhelmed. Obviously this wasn’t sustainable. My epiphany occurred when my senior dog had a seizure, and to cope, I begged my partner to go and pick up a pint of alcohol, just to get through the worry and fear (she’s okay now). I realized SOMETHING had to change. I read and did research and decided to try L-theanine. This brand was the first brand I tried. I began with 2, and then upped the dose each day until I found the perfect “sweet spot” for me at 1200mg*. That seems like a lot, but my brain had been depleted of natural anxiety defense for years. The day I took at the amount for the first time changed the entire course of my future. For once I was able to breathe, to think clearly, to feel calm and normal without a drop of alcohol. The effect lasted nearly 12 hours, and that night I slept like a baby. I tried it the next day, when that familiar anxiety and urge to drink crept up... and it worked again. Within the hour, my heart began to beat normally, and I was calm and content, and once again drifted off to sleep that night genuinely looking forward to waking up (a rare thing when you drink every night). So far I’ve been sober for three weeks, and I feel amazing. There are no sedation, stimulating or uncomfortable side effects, it kicks in within 30-60 minutes (depending on whether you’ve eaten), and one dose lasts me 12+ hours. I have zero urge to drink, I sleep great, my mood is amazing, and my typical ADHD brain is clear and focused! It’s my belief that when my brain finds equilibrium and begins to produce its own dopamine again (which I’ve read takes about 6 months for alcoholics and problem drinkers) that I’ll only need the L-theanine on difficult or stressful days. For someone who spent every waking moment suffering the pain of severe anxiety, I could really cry from joy for this mental, physical and emotional reprieve. For once I’m truly excited about the future. *1200mg is a high dose, and over the recommendations based on studies looking at changes in alpha waves (200-400mg). I am not a doctor or health practitioner, nor am I suggesting people follow my dosage right out of the gate. If you’ve never had substance abuse issues, you likely will not need such a high dose. Research and consult your doctor before adding any supplement, especially if you intend to take more than the recommended amount. I began with two (the highest recommended dose) and did not increase that dose until 24 hours later. I stopped at 1200mg because that was the dose that gave me the relief and results I was looking for; I do not intend to exceed that amount for myself in the future. Edit to Update: it’s over a year later, and I no longer drink, nor do I need to take Theanine (even in social situations!). My brain is clear, I’m genuinely happy, and so so glad I discovered this. Quitting drinking can be hard, but this absolutely saved my sanity and my life. I still will always keep a bottle on hand, and I can’t recommend it hard enough for folks desperately looking for aid. Good luck out there friends!

High quality, natural L-Theanine. Great for focus, sleep, or just taking that edge off. I've used the product both during the day and before bed and it works fantastic for me with zero side effect. I only take it as needed and not daily and it's my go to supplement for such. If you've never tried L-Theanine before but were recommended to try it then this is your best bet no doubt

It did not work for me, I have been taking for week straight and took a break and took today as well. It doesn't make me tired or anything, I could say it does give a balanced calming effect though.

I will be purchasing more again soon. Excellent product, I purchased it to help with anxiety symptoms, and it is amazing. But one should definitely discuss with a health provider to see if it's right for you.

I’ve been taking Sports Research Double Strength L-Theanine for a few months now, and it’s made a noticeable difference. I feel calmer and more focused throughout the day without feeling sluggish or tired. What I really like is that it helps take the edge off stress, but it doesn’t knock me out. it’s more of a smooth, steady calm. I’ve also found it works especially well paired with magnesium and glycine in the evenings for better rest. I wanted something natural that wasn’t habit-forming, and this has been a solid addition to my routine. Definitely recommend if you’re looking for a way to support relaxation and focus without melatonin or heavy sleep aids.

High quality product that works. I bought these for my daughter and I can see the difference in her. When I give at the same time as her regular meds I don't see the difference. But if I give it to her a few hours after her meds, I definitely see the difference!

Very potent. I drink energy drinks with 200mg L-theanine and it does not affect me like this does. I guess because energy drinks combine it with caffeine that it offsets the restful feeling. I tried taking this in the morning, but it dragged me down with extreme relaxation feeling. I found myself sitting there staring into space feel relaxed, but too relaxed to do anything. So I tried taking this with dinner for a few nights. While waking up with that really relaxed feeling in my chest (like waking up from deep sleep cycle) felt nice, I wasn't energized the following morning. Instead, the relaxation feeling carried through the following day making me, again, overly relaxed and not really motivated to do anything. I stopped taking this version and tried this brand's other version (L-theanine + Caffeine) and have a much better response. I don't feel overly relaxed. It actually helps me go from yawning and low energy, to normal and functional (nothing beyond that). The combination of LT and Caffeine really does make a difference. I will continue to take the combo version.