I've never had a food allergy in my life, but, and this is no bull, drinking this stuff makes me bleed out the ah, rear. I've never experienced such a thing before. I tried this product months apart, both times ended in blood. The first time I had no idea what the cause was and my dr's were baffled. I used it for about two weeks straight with minor discomfort but didn't connect the two as I had used the normal xtend BCAA mix before without issue. So I kept using it. Eventually enough damage was done that I bled for nearly three months and was in pretty bad shape even though I had long stopped using the product or exercising because I was so messed up. When I finally healed, I forgot I even had this stuff until about 7 months later. Still not knowing what had made me so ill before, I mixed a single glass with my evening workout. The next morning the blood was back. Luckily this time it clicked and I realized what was going on.<br />Again, I have no history of digestive problems of any kind, nor any known food allergies.<br /><br />Maybe it's just something about my body, obviously many people use this without problems but I, for one, will never touch their products again.

Just ordered my second and will continue to order. Recommended to several friends and they has been raving about feeling leaner with more energy too. My go to 'during-workout' drink. It's a tad sweet which I like, and it doesn't mix as well as the regular formula, but that's to be expected with the Capsimax. Blue lemonade is delicious!

I think my product was rancid cuz the taste was awful and it had a weird rust color to it. You've been warned...

These aminos are great, the only ones that help me not only the day of but have helped significantly with my DOMS.

Great taste, but doesn't mix nearly as well as regular Xtend.<br /><br />Also, it seems to get spicier over time if you don't drink it all right away. I made the mistake of mixing in a few scoops with a big jug of water, then drank about half of it that day during/after my training session and some afterward. Had maybe 1/3 of the jug left by the next morning and thought I would finish it off with breakfast. Immediately tasted the difference - it had some serious kick in it. Careful if you are sensitive to that kind of thing.

My first time using BCAA powder. For me, there is too much caffeine because I a coffee lover and I drink it througout the day. I've tried cutting back on my coffee - one in the am and then using this during my first workout, and passing on any further coffee until 2. It seems to be working so far.<br /><br />I haven't noticed results but I've only recently gotten back into my regular workout routine after a shoulder injury. I need to the aminos and I love the energy burst. Will update in about a month when I've been using for a while.