OxyBoost, Nitric Oxide Booster Dietary Supplement, Award-Winning Ingredients, Clinically Proven Ingredients. Increased Blood Flow, Cell Repair, and Energy. Senior Supplement Beet Root. 1 Pack

Work as expected!

I took half of one capsule and it obviously has a plant product (it's hard to find a listing of exactly what is in it and the warnings come with the product, not online before you buy it) that I am sensitive to. And now I can't return it. No money back guarantee. $50 down the drain. There are better more forthcoming products on the market. Save your money.

Made no difference at all even after 30 days

Nitrous Oxide has been found to increase dilation in blood vessels, which supports oxygenation and can lead to better circulation. While many athletes take L-arginine and L-Citruline to boost NO, the combination of polyphenols in this formula, derived from organic apple skin and grape skin, has been shown to outperform either of those supplements by a considerable amount. The manufactures claim this combo, along with the addition of beetroot, (also shown in studies to be an effective NO enhancer, ) performs 10x greater than arginine. While I read the summaries of a couple of legit studies of the ingredients in this formula, I wasn’t able to substantiate that claim.As a 71 year old long distance hiker, I am always looking for something to support endurance. My feeling about this formula is that athletes and very active people are going to notice the most benefits. I also feel any supplement that can increase circulation without side effects is a good addition to one’s health regimen. As a senior, I’m always looking for ways to increase my circulation and blood oxygen, so I’m onboard with this product and will continue using it.Recommended.

I just want to make it clear that these work. I can see a muscle pump and I also have other performance enhancements. At the same time, they don't function as well as others in its class, at least not at the recommended dosage.According to the label, you're supposed to take two of these for the desired effect. I experimented and found that three works much better and is comparable with other supplements of this nature. Of course, at 3 pills at a time, that takes you down to only 20 servings instead of 30.I would say that this supplement is good if you're already taking a pre workout that has an oxide booster in it already. That is, if you just want to supplement something else you're taking, this is probably what you need. But as a standalone, I think it could be done a little bit better. Still, not bad for what it is, just not best in class.