







🔥 Elevate your workout game with science-backed power and zero compromise!
GAT SPORT Nitraflex Advanced Pre-Workout Powder delivers a potent, clinically validated blend featuring Nitrosigine for sustained pumps and Boron Citrate to boost free testosterone by 28.3%. Designed for adults seeking clean energy and enhanced exercise performance, this vegan-friendly formula requires only one scoop per day, providing up to 6 hours of increased blood flow and focus without jitters or crashes. Trusted by athletes and fitness enthusiasts alike, Nitraflex fuels motivation and muscle gains with every serving.







| ASIN | B00J20YV04 |
| Age Range Description | Adult |
| Best Sellers Rank | #13,610 in Health & Household ( See Top 100 in Health & Household ) #57 in Sports Nutrition Pre-Workout Powders #1,305 in Sales & Deals |
| Brand | GAT SPORT |
| Brand Name | GAT SPORT |
| Color | Brown |
| Container Type | Tub |
| Customer Reviews | 4.5 out of 5 stars 6,191 Reviews |
| Diet Type | Vegan |
| Dosage Form | Powder |
| Flavor | Black Cherry |
| Global Trade Identification Number | 00859613647009 |
| Item Dimensions | 3.15 x 1.57 x 2.36 inches |
| Item Form | Powder |
| Item Nype Name | Pre-Workout |
| Item Weight | 300 Grams |
| Manufacturer | GAT Sport |
| Model Name | Sport Nitraflex Advanced Pre-Workout Powder |
| Number of Items | 1 |
| Primary Supplement Type | Caffeine, Nitrosigine, Boron |
| Product Benefits | Energy Management |
| Total Servings Per Container | 30 |
| UPC | 859613647009 |
| Unit Count | 10.5 Ounce |
I**T
This is an amazing product! - This is not a paid review I'm an actual consumer -
This is one of the best pre workouts I've used in a long time. I'm a "stimulant junkie" and get a great feeling with Nitraflex. No tingles, great focus, good energy, no made up ingredient names for marketing, great pumps and no crash. To see if it was me or the product, I purchased a different pre workout to find out. Sure enough the other product I bought gave me uncomfortable tingles and left me lagging through out the remainder of the day (I used it for a week for my own study). I'm an early morning gym guy, so feeling sluggish wasn't good for me. So I turned around and immediately purchased my third container of Nitraflex. Even if you're an evening gym goer this product is still a good choice. It's a clean transition from your "high" to being on your natural energy. So it won't keep you up all night. I also tried it in the evening just to see if it would keep me awake. Over all; the taste is great (I've used fruit punch and black cherry both were good), the results for the use of a pre workout are legit, no crash, clean energy (no tingles or jitters), and the price compared to other pre workouts can't be beat. I'm making my comparisons based off uses of C4 Ripped, Beyond Raw LIT, BPI Best Pre, and Nitro Surge to name a few of the previous products I've used. As always, test your tolerance first, know the ingredients, and be sure to cycle off at least a week between the end and start of a container.
E**Z
Great product
I’ve used this product for years .. and it will give you consistent energy without any crash. Good pumps but most importantly the energy and focus it gives you. I did notice that prior years to now product has changed in color (watermelon) is white and is not as potent. But overall good product.
A**N
Thoughts on the Product!
Thoughts on the product- Ill start off by saying I am 21 years old, 5'10 and 183-185 pounds, I have been working out seriously for about 2 years now and I have tried many prework outs. Some of my favorites being Superpump max, SAN fierce domination, and a lot of the small scoop high stimulant products like craze, so I have a high tolerance for stimulants. First of all this was my first time using any GAT product and I must say I have been very impressed. Ill start with the flavor, I chose Green Apple flavor, which was very unique tasting compared to other green apple flavors I’ve tasted, it gave off a very sour aftertaste but was sweet as well, the closest thing to compare it too would be sour candy which was a plus for me, I thought the flavor was outstanding. One thing I also noticed was compared to other pre-workouts that sometimes can take 20-30 minutes to really kick in you start feeling the effects of Nitraflex minutes after you take it , which is a plus for anyone in need of very quick energy. I personally have never been a fan of the tingles that Beta-alanine provide, however this preworkout features beta-alanine (as carnosyn) dosed at just the right amount, it was not too overpowering to handle. When it comes to vascularity this product is hands down the best I have experienced. The pumps were outstanding and it was a product that left me feeling pumped even hours after my workout, it really works as a great vasodilator where some products claim to fail this one does not. Energy wise it was great, this product contains 325 mg of caffeine in each scoop, as well as a few other stimulants, so it is not for someone who is very stimulant sensitive, but it is for someone that needs a great boost of energy before a workout. This product also mixed rather well, there was usually no residue left in the bottom of the shaker when I was done drinking it. I also thought this product was unique as a preworkout because it also claims to boost testosterone, using Calcium fuctopyranose borate CFB US PATENTED, although I can not back up these claims nor did I see any significant effects over the past few weeks using the product testosterone boost wise, I must say it has worked well all around as a preworkout. I have just purchased a second tub of watermelon, the flavor is good, but not as good as green apple in my opinion. Overall I really liked Nitraflex, it retails anywhere from $32-$38 and contains 30 servings per container, so that puts you at a minimum of $1.06 per serving which is a little high but if you have the money and are looking for a good pre I would say its well worth it. Rating- Mixability-10 Taste-10 Price Per Serving- 8 Energy-10 Pumps-10 Overall Rating- 9.6/10
J**T
Excellent pre-workout, my go to for years now.
There are many other reviews on here that will do the product more justice than I can. All I can say is I love the taste of Nitraflex GAT and I love how it makes me feel. I did want to share something I recently did that's a "cool" quality of life improvement for all my supplements. I got long handled measuring spoons. I was tired of the little plastic scoops that come with supplements, especially for my protein. Reaching down in the bottle and scraping my hand got annoying. When I bought a large bottle of Vital Protein and it didn't come with a scoop at all, I thought, this is the last straw. So I looked at the sizes that I needed, and found a set of long handled measuring spoons that were very close to the same volume as the scoops that come with my supplements. These are the ones I got and the ones pictured: https://amzn.to/3vWHxNX Once those came in I was like, this is GREAT... but one thing still annoyed me. Having to actually locate the spoon everytime I needed to scoop. And then I remembered I had these bands (https://amzn.to/3UqCPl1). When I put them on the bottle, it was an absolute eureka moment. The little plastic black cleats that come on the bands are PERFECT for sliding the measuring spoon right down beside, making reinsertion effortless. Now I keep my spoon with each supplement. A place for everything, and everything in its place. I also purchased a larger spoon for my protein. You can find it here: https://amzn.to/4aZGqfc Just wanted to share this in case any others are OCD like I am. I am loving this setup, I've been running it for around a month now and I won't go back.
M**T
Good, but it could be Great
The ingredients within this pre-workout are good, and it's clear the quality is there. Of the flavors I have tried I've got to give the best flavor to Fruit Punch hands down, it mixes clean and the taste isn't ridiculously overpowering like say, the blue raspberry. When I take the pre-workout I definitely feel a huge boost during my workout, and I experience a slight "tingling" sensation in my fingers, ears, etc. There are two issues I've had with the product, however. 1. The first is that the first time I purchased the powder, it was extremely caked and clumped. I had to bust it up myself and it was as if moisture had infiltrated the package, even though it was clearly wrapped and sealed. I only had this issue one time, the rest of the time the powder was good and clean. 2. The second is the "proprietary blend". I'm not a fan of hidden blends, I like to know just how much of each item is in the mix. For instance, this could have a huge amount of fillers or the inappropriate amounts of the elements you need for a good blend, but you'll never know how much since it's hidden behind the "proprietary" label. Realize you are also getting 325mg of caffeine per serving. I have a massive caffeine tolerance, but it's possible someone else might have a different experience. The entirety of the mix is also 10g. I'm not sure that's enough to get what you'd really want in a strong pre-workout mix, especially if you are shooting for say, 5-8g of Citrulline Malate. You could double up the mix, but it says it's not a good idea, and you'd be dealing with 650mg of caffeine from your pre-workout alone, which is an insane amount. All in all, it's a good pre-workout, but not the best. I will be looking for a pre-workout that gives me exact measures of the various items within its blend so I know what I'm getting.
E**I
Good supplement
Good supplement
E**R
Works perfectly!
All of the flavors are very tasty and It'll give you quite the boost of energy but use caution, I'm now addicted to this stuff.
L**A
Good
Second time I bought this product. I always have half dose because I workout almost during the evening, but it definitely helps to push through the workout, sometimes I get I bit itchy and once got my arms itchy and red but totally worth it for my needs
Trustpilot
5 days ago
2 weeks ago