PWD para intensificação de testosterona e hiperemia.*
Compostos CFB e vasoativos clinicamente estudados.*
9.1  out of 10  (545 Reviews)

Product Overview

Testosterone Supporting Pre-Workout*
GAT Nitraflex. Hyperemia and Testosterone Enhancing Powder*


TeamGAT Athlete 2015 Arnold Champion

Citrulline Malate

The Most Seething Intensity

The Most Seething Intensity. GAT Sport Nitraflex bottle image
New Instant Exhilarating RTDs
12 Pack Case - 10 oz. Single Serving Bottles
The NITRAFLEX Advantages:
  • highly Concentrated
  • More than 3X Strength
  • Clinically Studied CFB+ Vascoactive Compounds
  • Amazingly Delicious Flavors
  • 1 Scoop Potency

NITRAFLEX is a clinically tested, high-intensity pre-training formula with potent ingredients to help magnify energy, alertness, strength, stamina, pumps and enhance Testosterone during workouts.*

GAT Sport Nitraflex. Same level potency on key ingredients!

Ratings & Reviews

Overall Rating
545 Ratings
Verified Buyer Rating
294 Ratings
Average Flavor Rating
10 Flavors
Top Rated Flavor
Pina Colada
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Feb 21, 2019
  • 10 Fruit Punch
Jan 07, 2019
Verified Buyer
  • 9 Orange
  • 10 Pineapple
  • 9 Green Apple
  • 8 Blue Raspberry

I love this product the boost it gives me before the gym is amazing i get in there and max out all the time and still have energy after to go home and do family thing. (2-4 hr. Workout)

Dec 21, 2018
Verified Buyer
  • 10 Blue Raspberry

Love this product in the gym. Best I’ve taken in reguardless to both flavor and effect. Stay away if you frequently finding yourself in bed lol. This product is not you little guys best friend

Dec 13, 2018

I have diabtes can I use it ? Type two

Dec 04, 2018
Verified Buyer
  • 1 Black Cherry

Product is ok. Black Cherry is identical to Nyquil cough medicine. The flavor gets a 0/10. Its disgusting unless you like taking meds before you work out.

Nov 03, 2018
Verified Buyer
  • 10 Pina Colada

Good pre-workout for any occasion. Pros: Good pump lasting ~1.5 hours Moderate paresthesia - Not too much like old Cellucor C4 but definitely noticeable Great flavor - Could drink this everyday and not hate myself Cons: Noticeable crash after workouts Definitely worth a try.

Nov 02, 2018
Verified Buyer
  • 10 Black Cherry

I cycle through my Preworkouts and Nitraflex is always the #1 go to!

Aug 24, 2018
  • 10 Blue Raspberry
  • 8 Green Apple

GAT Nitraflex is an excellent pre workout, it gave me a lot of energy when i didn't want to go to the gym and gave me a lot of energy when i was lifting heavy, on the other side it made me a little bit anxious and kind of felt nervous, it also made my arms a bit itchy for a very short period, but after starting to workout it went away. I find this product very efficient, it definitely gave me an amazing pump. Instagram: Iron_nephilim

Aug 15, 2018
Verified Buyer
  • 10 Pineapple
  • 10 Black Cherry
  • 6 Blue Raspberry

LOve this Pre Work

Jul 22, 2018
Verified Buyer
  • 9 Orange

I've just started using this so my thoughts are limited to time factors. I'm in my 60s but this product so far has been VERY helpful. I not only get fired up after taking it, I've notice a good pump during the workout. It has stuck w/me as well. I'll use it again when this is gone.

Jul 21, 2018
  • 10 Pina Colada

Nitraflex didn't necessary blow me away, but it was a solid product overall. Taste isn't a huge factor to me when it comes to a product, but the pina colada flavor is pretty much dead nutz on. It was a pre-workout treat, no doubt. Could feel the beta-alanine kicking in with each and every serving I took, so that was a welcomed plus, as it never seemed to diminish over the course of time. Pumps we're decent and for the money I'd say it's a good value as well. A solid 8 in my book. Just my 2 cents..

Jul 19, 2018
Verified Buyer
  • 10 Peach Mango

I've been using GAT Nitraflex for a few years now and I have yet to come across a flavor that I don't like, but Peach Mango has taken the trophy. Tastes just like the peachy-0's candy that I grew up on. I hope they never stop making this flavor.

Jul 16, 2018
Verified Buyer
  • 9 Black Cherry
  • 9 Green Apple

Every Person Is Different But While Using This Product I Get The Energy And Focus I Need. I’ve Used Other Pre Work Outs And This Is The One I Constantly Keep Buying. I Always Take Half A Scoop, I’m Usually In The Gym For 3-5 Hrs So This PWO Definitely Helps. I Recommend To Try This Product!!!

Jul 12, 2018
Verified Buyer
  • 9 Fruit Punch
  • 9 Pina Colada
  • 5 Peach Mango
  • 10 Blue Raspberry

It’s not rage workout educingbit it by no means a weak pre-workout. I used to come way down after my workouts with those vein exploding preworkouts and couldn’t get through the rest of my day. This is the perfect balance between the two. On another note regarding flavor. Some of the best tasting preworkout I’ve had so far. For those looking into the peach mango, it tastes just like you’re drinking peach -Os. I don’t taste any mango. Take that however you want

Jun 26, 2018

They are literally advertising how under dosed this supplement is. Absolute trash

4 Sizes
8 Packets
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1 Flavor
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Price: $12.23  ($1.53 / Serving)
Flavor Rating: 9.0
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8 Packets Variety Pack
Serving Size: 1 Packet (10 g)
Servings Per Container: 8
Amount Per Serving %DV
Niacin (as nicotinic acid) 25 mg 125%
Vascoactive Arginase-Regulating NO Precursor Complex       
Citrulline, Citrulline Malate, L-Arginine Malate, L-Arginine, Alpha-ketoglutarate, Resveratrol, Pterostilbene
Acute Energy, Focus, Intensity, Neuromodulating, Endurance Complex       
Beta-Alanine (as CarnoSyn®), Caffeine, DMAE Bitartrate, N-Acetyl-L-Tyrosine, Theanine, Rauwolscine (Rauvolfia Canenscens L. (Root Extract))
Clinically-Studied Testosterone-Enhancing Complex       
Calcium fructopyranose borate (CFB) US Patent #5,962,049
** Daily Value not established
Other Ingredients:
Pineapple Fruit Powder, Citric Acid, Silicon Dioxide, Natural and Artificial Flavors, Acesulfame Potassium, Sucralose, FD&C Red #40

Instruções de NITRAFLEX: Períodos de treino: Dia 1: Comece avaliando a sua tolerância com meia medida (½ medida ) de NITRAFLEX™ misturado com 180-240 ml de água fria. Dia 2 e depois: Dependendo da tolerância, misture 1 porção (1 medida) de NITRAFLEX™ com 180-240 ml de água fria e beba 30 minutos antes do treino.
Período de descanso: Tome 1 porção (1 medida) ao se levantar pela manhã ou antes de qualquer atividade física.

Advertências: Este produto destina-se apenas ao uso por adultos saudáveis, de 18 anos de idade ou mais. Cada porção (1 medida), contém 325 mg de cafeína. Não misture com outros produtos que contenham cafeína ou estimulantes. Siga as instruções para avaliar a sua tolerância. Não use o produto se você estiver grávida, amamentando ou se estiver tentando engravidar. Não use esse produto se você não estiver de sua condição médica atual, incluindo mas não limitado a, coração, fígado, rim ou doenças da tiroide, distúrbios psiquiátricos ou epilepsia, pressão baixa ou alta, arritmia cardíaca, dores de cabeça recorrentes, aumento da próstata ou glaucoma. Não use esse produto se você estiver usando medicamento sujeito a prescrição médica ou de venda livre de qualquer tipo, incluindo, mas não limitado a inibidores da MAO, antidepressivos, aspirina ou anti-inflamatórios não esteroides. Não use se você for propenso a superaquecimento ou desidratação. Após 8 semanas de uso, faça uma pausa de 1 semana antes de retomar a utilização. Interrompa o uso por 2 semanas antes de cirurgias ou no caso de taquicardia, vertigem, dor de cabeça severa ou falta de ar. Não tome no período de cinco horas antes de dormir.

* Essas afirmações não foram avaliadas pelo Food and Drug Administration. Este produto não é voltado ao diagnóstico, tratamento, cura ou prevenção de nenhuma doença.