I don't know how you can rate this kind of product unless it does something amazing in a very short time. It didn't for me. After some time maybe I will see or feel some benefits. One bottle maybe but probably will take more than one bottle and some time. I will continue to use this product and update after using this bottle.

Good quality, nothing extra added to it. It's granular rather than a powder, I've never had pure Betaine before so that may be normal. It dissolves just fine and is easy to take.

I like this stuff. I've been taking this around 3 weeks. I mix teaspoon in warm water twice daily. I take the first dose around an hour before my workout, and I take the second dose right before my protein shake. It mixes completely into the warm water, and has a very mild bitter taste. The bottle says one dose is 1.6g per teaspoon, but teaspoon measured 1.3g on my milligram scale. This could be due to a difference in my measuring spoon, and since I was going for a total of 2.5g anyway it was close enough, but if the dosage is critical for you, double check it on a scale. I workout 5 times a week (3 days on, one day off, 2 days on, one day off) doing crossfit style metcons, Olympic lifts and accessory work. My training plan has been pretty brutal while taking this as I am in a strength and capacity building phase. It's worth noting that I already have a good diet, adequate sleep and hydration, and perform mobility work like stretching and foam rolling. That being said, within a week I noticed that some of my lifts seemed easier. A couple of times I was having so much fun lifting that I accidentally did an extra set. It may be helping my recovery, since I recovered from some workouts that totally wrecked me, but that's hard to say since I do other stuff like foam rolling, heat, compression or ice as needed. It also may be helping my endurance, but that's also hard to say since I've been putting in the work. Nevertheless, my workouts today seemed easier, and I did a hero workout 3 days ago. Oh, and I hit a PR today. I feel like I'm leveling up. If you are already doing all the right things with your diet, hydration, rest and recovery give this stuff a try. I'm pretty stoked to add this to my daily stack and see what happens.

Well I've been on it for two weeks now and I have noticed having more energy to complete my workout reps. I will continue to use it until I finish the bottle to give a more complete assessment.

I've used Betaine/TMG for years for multiple purposes. This seems to be a high quality powder and is much more cost effective than capsules. I'll likely purchase again. I've also had great luck with the Now Brand in general, for 20 years or so.

This review is for the Now Sports Nutrition, Betaine Powder, Endurance*, Pure Powder, Enhances Performance*, Maintains Muscle*, 6 oz (170 g), White which had a price of $16.39 at the time of this review. I've only been taking this supplement for a short time. I usually take this supplement with water or mix it with another flavored drink mix. I haven't really noticed any real taste to it when mixed in anything. It seems to be a good value because it says that there is 106 servings per bottle. If you are taking it twice a day as directed that give you a 53 day supply which is about $0.31/day at its current price. I don't know about anyone else, but I think that makes this supplement a great value compared to others out there. I can't tell if this supplement is doing anything yet, be it positive or negative, but I hope that it is working. I will change the rating and update my review if anything changes.