MRI Performance NO2 Nitric Oxide Original Formula All Day Perpetual Pump, Stim-Free Pre-Workout, N.O. Booster with L-Arginine Alpha Ketoglutarate AAKG, Power, Strength, Lean Muscle Mass & Vascularity

I was hesitant as I used to use this years ago and went straight to the reviews. I expected to get a chalky mess and was thinking this was the old stuff that had expired since I had a bottle before that I had in a storage unit long past the expiration date. Remember how good this paired with any pre-work out I went ahead and gave it a chance seeing that more recent ratings had claimed the issue with the capsules being broken and chalky were solved. As I get back into shape I am noticing it's impact more and more. The pumps are more insane like they used to be and my pump is sustained throughout my workout and then some. Let's hope they continue to improve the quality so that everyone who purchases this gets the same quality product.

I was a loyal customer back in the mid 2000’s when it really worked. Didn’t see it around for a while. Saw that it was back and ordered it.That was a mistake. When I opened the bottle I saw broken tablets, loose powder and noticed that tablets were not coated but had a rough powdery surface. The original style used to have coated tablets that allowed the rather large tablets to slide down your throat. These new ones are hard to swallow because of the rough surface. The worst part is, they didn’t do anything for me. I actually felt like I had less energy not more. I guess nothing is as good as it used to be. They don’t accept returns based upon a claim of safety reasons. I don’t think that’s the real reason. So, I threw them in the trash. Don’t waste your money on this current version of the product.

One of the best supplements without a doubt! Definitely satisfied with it and the results. I've been dedicated to body conditioning and strength training for over 30 years and am glad to use this supplement.

Finally, the original formula came back, I enjoy this supplement because it just boosts everything I do in my fitness goals, so far I have been using it paired with intermittent fasting (a huge window ) and very light workouts slowly building from just a few sets to a half hour a day. I have gone from 250 lbs to 235 lbs in 2-1/2 to 3 months while building muscle. This has improved my recovery times and nutrition absorption and boosted my energy levels as well as my libido. When I was younger and I first took this supplement my Main Goal was to Build as much muscle as possible and I added a solid 15- 20 pounds, but now that I'm older it's more about leaning back down. The goal is getting back to my Marine fighting shape lol. I have also got my wife on this and she reports losing 5 pounds so far ( even tho she's only done a workout here and there) but she reports her energy levels at work have also improved and her figure is toning up nicely since she started 3 weeks ago. We both only take the morning load so far and are working our way to a healthier lifestyle. I recommend this to anyone looking for that extra boost in recovery and nutrition absorption.

Big horse pills, sometimes hard to swallow.

Great supplements it lives up to its name, the pump was amazing the package was great no broken pills or damage product i would recommend this product for the serious fitness enthusias. Great job amozon 💪🏾

I took the bottle out of the bag it was delivered it. The plastic seal was still on. When I removed the plastic and the lid, the safety lid on the inside stuck to the plastic lid. There was a lot of powder. The pills are soft and chalklike and are super soft and extremely crumbly. I will not be buying these ever again.

I had one bottle in 2023 have the pills breaking apart many of them down to powder but have not experienced a single pill behaving in the aforementioned abhorrent manner across many orders of both the 90 and 180 count variations. `ActiNOS CFM Nitro P` (ActiNOS) (you'll find it labeled in several way comprised of said naming convention) is realistically the most effective means of propagating the production of nitric oxide that you can just grab (for the time being) from Amazon or platform akin to it. MRI is one of the very few companies/formulators to have consistently (all the way back to when there were the silver topped Black Powder products through products like NO2 Black, NO2 Red, NO2 Full Cycle, Pro-NOS, etc.). They took a turn for a while years back and originally dropped its inclusion in the re-release of black powder which I hope they never do again (worst business decision they could make; ActiNOS is what drives the insane pumps and resultant performance induced by their products). During that dark time of `new` black powder (without ActiNOS), I periodically called up one of the the lead chemists at Glanbia (at that time) begging him to sell me drums upon drums of raw-powderized ActiNOS but private sales were always a no go. This is to say please, MRI, never drop ActiNOS from your formulations again!