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Potent Hyperemia & Testosterone Enhancing Pre-Training Formula
  • Buy 3 for $29.00 each and save 4%
4.75 stars, based on 18 reviews
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Size :300g
Servings :30
SKU :nitraflex

Availability: In stock

  Description    Directions    Ingredients    Reviews  

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Hyperemia & Testosterone Enhancing Pre-Training Formula

  • 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.  NITRAFLEX will have you conquering the weights with screaming muscle energy and testosterone-fueled intensity.

Ideal for hard-training athletes, especially those who feel that they may have hit a training plateau or your existing pre-workout just isn’t delivering those earth shaking workouts any more.

•Helps reduce feelings of fatigue and support energy, stamina and healthy nitric oxide (NO) and testosterone levels.

•Potent muscle building ingredients L-Citrulline malate, L-Arginine, L-Arginine alpha-ketoglutarate (AKG) amino acids have been added to NITRAFLEX to support healthy nitric oxide levels and muscle performance. 

•With calcium fructoborate (CFB), a nature-identical, high-quality form of boron with clinically tested bioactivity.

•Tested in an IRB-approved clinical pilot study using experienced athletes. After taking NITRAFLEX for 2 weeks, all subjects increased their maximum bench press strength 5-10 lbs. Subjects also increased their muscular endurance, training volume and blood testosterone levels.

* Individual results may vary.

comparison chart

Day 1: Begin by assessing your tolerance with half a scoop (1/2 scoop) of Nitraflex mixed with 6-8 oz of cold water.
Days 2 and beyond: Depending on tolerance, mix 1 serving (1 scoop) of Nitraflex with 6-8 oz of cold water and consume within 30 minutes before working out.

Take 1 serving (1 scoop) open arising in the morning or before any physical activity.

Do not take more than 1 serving in a single 24-hour period. Do not take within five hours of bedtime.

Special Times to use (Take 1/2 to 1 Scoop): take before martial arts, Take before powerlifting meets, Take before long distance runs or intense cardio sessions, Take before any type of weight training, Take before sporting events, Take anytime extreme energy/focus is needed, Take before exams or anything that requires mental recall.

WARNINGS: This product is strictly intended for use by health persons 18 years of age or older. Each serving (1 scoop) contains 350 mg of caffeine. Do not combine with other caffeine or stimulant-containing products. Follow the instructions for assessing your tolerance. DO not use if you are pregnant, nursing or trying to become pregnant. Do not use if you are currently unaware of your health status or if you have a medical condition including but not limited to heart, liver, kidney or thyroid disease, psychiatric or epileptic disorders, high or low blood pressure, cardiac arrhythmia, recurrent headaches, enlarged prostate or glaucoma. Do not use if you are taking prescription or non-prescription medications, aspirin or non-steroidal anti-inflammatory drugs. Do not use if you are prone to overheating or dehydration. After 8 weeks of use, take 1 week off before resuming use. Discontinue at least 2 weeks prior to surgery or if you experience rapid heartbeat, dizziness, severe headache or shortness of breath.

Supplement Facts

Serving Size: 1 Scoop (10 grams)

Servings Per Container: 30

                                                      Amount Per Serving                  %DV

Niacin (as nicotinic acid)                                     25 mg                     125%

NITRAFLEX PROPRIECEUTICAL BLEND     7240 mg                     **

  Vasoactive 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, Raulwolfia Canescenes (Extract)

Clinically-Studied Testosterone-Enhancing Complex

Calcium fructopyranose borate (CFB) US Patent #5,962,049

** Daily Value not established

Customer Reviews

  • Rick
    Solid Preworkout May 28, 2017

    Overall a solid preworkout. In the beginning it gives a high level of energy and strong pump that lasts throughout your workout. I did find that you get used to this quickly and need to increase dose within a week or do

  • Kevin
    Perfect December 5, 2016

    Solid pre-workout..

  • Christopher
    Explosive April 8, 2016

    Cannot really say enough about this product. Gains all day!

  • Robert
    Lots of energy December 15, 2015

    I like this stuff...Doesn't get me jittery, just lots of energy!

  • Brett
    Works, but tastes so bad I threw it out October 26, 2015

    I don't know about the other flavors, but green apple tastes like green sidewalk chalk. I don't know why everyone is so positive of it, I mean it does help get you boosted but its nothing special. It won't give you the jitters like c4 will. But c4 will get you way more hyped and will get you to sweat, this won't. Vortex will do the same thing but tastes way better.

  • Robert
    Overall great October 22, 2015

    I like this pre workout more than any others I've had before. I only rated the taste a 4 because like all the other powders its not the greatest tasting drink...just have to slam it real quick

  • Mohammed
    YES!! May 14, 2015

    Mark, the owner told me this was the best pre workout out and HE WAS RIGHT!! Works the same everyday and gives the same results. That's all I want in a pre workout.

  • Angel
    Great stuff! April 10, 2015

    This is my fav pre-workout! I've tried diff ones from jack3d, noxplode, to c4. Nitraflex delivers everything you need to hit the gym hard. Great pump, energy, and focus! I will always be a customer to the Gat supplements and especially with FirstfitnessUsa prices. Thanks guys

  • preston
    Excellent April 6, 2015

    By far the best pre-workout I have experienced in terms of blood flow, pump and concentration. I have noticed the duration of my workout becoming longer as well.Does not have the best after taste but the results are way worth it.

  • Jarid
    Great energy March 29, 2015

    Great energy and pump

  • David
    Terrific Pump February 6, 2015

    This is the best pre-workout I've ever used. Fantastic pump that lasts well into and after the workout. I feel fired-up in the gym and just kill it! After an arm-focused day it feels like I'm going to burst.
    A bit expensive, but FFUSA deals make it a great value given the results. Flavor is a bit funky, but hey, it is amazing!

  • Veronica
    Black Cherry is awesome January 19, 2015

    My bf has been using this product for about half a year, he says that he gets super pumped, high energy, and no crash.

    Best preworkout! January 7, 2015

    Best preworkout I have tried!

  • Lance
    whoa April 14, 2014

    this stuff came highly recommended from the people here at FFUSA and whoa does this stuff get you amped up. Completely destroyed my workout this morning and never once had to step back from the weights, no tingle, no jitters, no fade just go go go.

  • JerryM
    Great Product March 27, 2014

    NITRAFLEX gives me the intensity and focus I need in the Gym. Great rush of energy and long lasting with no downs

  • BOB
    Heart Pounding Energy and Focus March 7, 2014

    NITRAFLEX delivers the intensity as advertised. The workouts can continue with increased concentration and less fatigue. Compared to other pre-workout products I have used, NITRAFLEX is at the top of the list.

  • Nick G
    Love it December 5, 2013

    I have tried most of the major pre-workouts and Nitraflex is my favorite- by far. Its intense but not so much so that I cant get nervous about my health. My head is right and my muscles get full and hard early in the workout. Taste is fine - I like the Pineapple the best - then the apple. Ive gone through three bottles and so far I havent had to up the dose like I do with others. Good price too

  • adrian
    Can't go wrong with this product December 5, 2013

    Nitraflex gave me just the right energy and focus for a high intensity workout.

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