BulkSupplements.com L-Theanine Powder - L-Theanine Supplement, L-Theanine 200mg - Amino Amino Supplement, Pure & Gluten Free, 200mg per Serving, 100g (3.5 oz) (Pack of 1)

I love this collagen. Zero fish taste or smell, mixes easily and easy to take. I think it has way less of a "heavier" or collagen-y taste than typical types and sits better for me. The bag however, how I wish their package seal would work or work consistently. I got over that and just fold out air and clip, lol. I think a good price and does the trick for me, wouldn't hesitate purchasing again and again.

Great way to mitigate caffeine jitters and enhance focus. Make sure to measure 1:2 caffeine to l-theanine and you'll be golden.

Helps me to calm down. When I drink coffee, it gets off the jittery feeling when drinking too much caffeine.

I just got my first order of Theanine from this specific seller (BulkSupplements) and am very happy with what I got.I use L-Theanine for mental function and I combine it with caffeine. I find it is useful in helping me focus and that with a larger dosage of caffeine (especially caffeine from guarana extract) that the effects are very pronounced. I can stay on track of tasks, sharply focus, and especially feel I work better with numbers. As all of our bodies are different and the same medication has different outcomes with different people, I cannot say if Theanine will be effective for you or not when used for this purpose. With that said, the User reviews here (and elsewhere) show that there is a pretty sizable chunk of people who have had luck using Theanine (combined with caffeine) for improved mental function.In terms of the science behind L-Theanine, the research is varied and not nearly as vast as many other supplements used for improved mental functioning. Some research has suggested Theanine has some degree of usefulness for anxiety, hyperactivity, sleep, the immune system, and mental performance. I use the word "some" because the results of clinical research has varied. Given how the same drug will affect different people in a different manner, this isn't all that surprising to see a limited number of controlled trials yield variable findings. With that said, User reviews show that Theanine has been extremely successful for some people (myself included) and so I think this is a supplement that holds potential value. Note that most of the studies which have found beneficial effects for reaction time and memory have also utilized caffeine alongside Theanine, as these two drugs seem to have synergistic effects in potentiating each other. I do not personally get any notable benefit from Theanine without simultaneous usage of caffeine.In terms of safety, I think it is always important to be aware of what goes in the body, and to be sure that what goes in our bodies come from trustable and respectable suppliers. Another Reviewer asked the question of 'how can one know they are getting real Theanine?' It's a fair question, and this is how I went about answering that question...In terms of 'knowing' if it is Theanine, I know because the difference for me is tremendous and very pronounced: for me, it takes the stimulant side of caffeine and somehow funnels it into mental sharpness. Caffeine alone does not do this, nor has any other supplement I have used for improved mental function. In terms of knowing if the product is safe and pure, I spent some time looking at different suppliers and reviews for their company and for the products they sell. I feel that this company, Bulk Supplements, has one of the best reputations on all of Amazon. Their general transaction feedback is excellent (like 99% positive), and virtually every product they sell has outstanding reviews. These thousands of stellar reviews made me feel that Bulk Supplements was a great choice to go with, and now having the product I can say I am very happy with what they sent me. So I am not sure if that is beneficial for you, but for me it was the deciding factor in buying Theanine from Bulk Supplements over other companies. I will certainly be purchasing from them in the future and I highly recommend them as a company to buy from.This Theanine (and other supplements in bulk) go along really well with a scale and a machine for making pills. As this comes in bulk powder, dosing quantity using a scoop is not the most reliable means and being able to weigh the dose is a much more consistent route. I purchased an AMW scale a few years ago for under ten bucks, so a decent-quality scale can be had for a very low price. I also own the Capsule Machine which I use to make capsules from bulk powder supplements. While there are tons of different makers producing those kinds of products, I figured I would mention those two as I purchased both on Amazon and can say first-hand that I am very happy with each. Having this scale and capsule machine makes using supplements much easier for me.So overall, I have had really good results with Theanine, and I am very happy with the Theanine that Bulk Supplements delivered on. While I cannot say if Theanine will be helpful for you or not, I can say that this is a Seller with good-quality Theanine in a pure form, and for a very reasonable price.

This is the second time I am buying. I use it to brush my teeth and second important is I use it in my coffee or tea with caffeine. L-theanine Is helping caffeine to increase my blood pressure. I will recommend.

Makes me laser-focused and, depending on the dose, a bit buzzed. I use 1/16 - 1/8 teaspoons and mix it in my coffee or protein shake. It has no taste.

Help me to relax and reduce my stress level.

(I no longer take this, see comment section)There is no denying that this has an effect. Wow. A lot to say already and its only my first dose. First, let me say I am highly skeptical about supplements. 10 years ago I lived with hippie vegans and I was exposed to all kinds of supplements in that house and found none of them to be very effective, except L-theanine, which I took once, and was surprised by the very slight but still noticeable lift and calm it gave me.I stopped almost all supplements years ago because I decided they were likely a waste of money and I just didnt have the cash to burn to try each one to find out of they worked for me or not. I held on to a very few (milk thistle, dandelion, and burdock... these proved VERY effective for cleaning the system).Anyway, I deal with anxiety (at times some very severe panic attacks) and some depression... plus several other current life issues along with those things. I find myself lacking in motivation. and unable to concentrate or efficiently prioritize things these days. I give up often, overwhelmed... just doing the sort of bare minimum to make sure life doesnt totally fall apart and the bills get paid.The L-theanine arrived today and I accidently took about twice the amount I was supposed to right off the bat, with some of my coffee. I let it dissolve under my tongue for the most part. (I had a meal about 1/2 hour before taking the L-theanine).MY GOODNESS... I FELT THIS STUFF IMMEDIATELY. There was no way I was imagining it.I took more than I really want to take in one dose from now on, but for a good 30 minutes I actually felt ... hard to describe... but very different than I had been feeling just before taking it. It was definitely CALMING... I would say the amount I took was TOO calming... sedative-like but not in a sleepy way. I was a bit loopy from half a teaspoon. I almost tripped over my own feet a few times.Its an hour later and I feel far less irritable than I usually do .Its making me realize how touchy I have been for a long while, in fact. I didnt start this supplement to address my irritability (until now, I didnt realize how bad my irritability had become) but it is nontheless addressing it. I am calm, and I am feeling just really peacefully alert. I feel more free, more accepting. less worried and less stressed.I will most certainly update in a few weeks to show how it works for me ongoing. My plan right now is to cycle on and off of this ... skipping a day or two here and there.So far, so good, and rest assured... there is a noticeable effect to L-theanine. YMMV