Pre-Training Formula for Bigger, Better Workouts
Food Supplement Powder
9.1  out of 10  (559 Reviews)

Product Overview


The Most Seething Intensity Pre-Workout Experience

1.5g Arginine
Creatine Free
3g Citrulline Malate
1.5g Beta Alanine

Nitraflex Advantages

  • Highly Concentrated
  • More Than 3X Strength
  • Clinically Studied CFB+
  • Vasoactive Compounds
  • Amazingly Delicious Flavors
  • 1 Scoop Potency

Unique Properties of Some of the Key Compounds in Nitraflex:

High Citrulline: Arginine Ratio: Arginine is a proven precursor to nitric oxide (NO), a vasodilator.

Effective Dose of Beta-Alanine: The clinically-proven performance enhancer beta-alanine was not "fairy dusted" in this formula.

NITRAFLEX contains no creatine, making it ideal for pre-contest prep and lean muscle physique.

Cognitive Enhancers: NITRAFLEX contains unique ratios of scientifically validated compounds that help you remain alert, intense and focused while TRAINING.

Ratings & Reviews

Overall Rating
559 Ratings
Verified Buyer Rating
304 Ratings
Average Flavor Rating
13 Flavors
Top Rated Flavor
Pink Lemonade
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.
Nov 23, 2019
Verified Buyer
  • 10 Grape

The flavor is just amazing. It gives me great pump to, great job GAT! Wold buy this product again and try other flavor.

Nov 16, 2019
Verified Buyer
  • 1 Peach Ice Tea

Showed a 10/10 rating but tastes AWFUL. Worst tasting pre I’ve ever tried.

Oct 17, 2019
Verified Buyer
  • 10 Peach Ice Tea

The peach iced tea tastes great, only flavor I've tried so far so I don't know about any other ones. As for results I experience zero fatigue working out so I really know where I'm at with weight , rep, and set amounts, and what I can do. As for a pre-workout I like it more than energy drinks plus its cheaper than other energy drinks I've been using as a pre-workout. I take this in combination with Nitra flex pump as well as the multi-vitamin with test, only been taking for three weeks a few times a week and I have seen results. Works for maximizing gains when I workout. It helps my cardio's both and my workouts. This is a product that I always talk about with people I love it and will buy again and again. It has so many flavors to choose from as well. I've taken medication with this and it says not to on the labeling, just drink water if that happens to anyone else. It helps if you actually workout when you take it so you can kind of metabolize it faster. Just set a time of day to take it and workout. No crash as well as will give you energy to do other things that day too.

Oct 01, 2019
Verified Buyer
  • 10 Grape

I've taken different pre-workout supplements. I will say the grape Nitea-flex is by far the best tasting I've tried. Decent pump. Lots of energy. Read the warning on the label! Do not consume more caffeine for around 8 hours. I'm a truck driver, & wanted to THROW my rig at someone after a small cup of coffee an hour after drinking this.

Sep 24, 2019
Verified Buyer
  • 9 Black Cherry
  • 5 Green Apple
  • 9 Orange

They changed something, new proprietary is not as effective

Aug 18, 2019
  • 10 Pink Lemonade
Jun 16, 2019
Verified Buyer
  • 10 Fruit Punch

Take this with NitraFlex Pump. Very good results of energy and more pumps when it comes to reps. Use these for early morning workouts to start the day.

Jun 02, 2019
Verified Buyer
  • 10 Black Cherry
  • 10 Watermelon

very good stuff . give good boost and focus . if it was with creatine & BCAA it could be the best !

May 14, 2019
Verified Buyer
  • 6 Watermelon

Gives a good boost of energy and focus, plus a pretty decent pump. Only thing I can complain about is it seems inconsistent. Might be just me but some days it feels really strong, other days I don't feel much at all. Watermelon flavor is drinkable but not delicious by any means.

Apr 22, 2019
  • 9 Orange

Try the tolerance dosage today for the first time and I got a pretty decent pump out of it. I slept like crap last night but still had a great workout. Started feeling it in my hands first, tingly feeling, then the face about 5 min later. At the gym, an itchy face which is pretty standard for me when I use pre-workouts so it really didn't bother me. The only reason I didn't give it a perfect 10 was because of the flavor. Don't get me wrong its good, it's just not great. Still, a solid product and will purchase again.

Apr 20, 2019
  • 9 Black Cherry

This is a **** never wrecking product, it gives you the pump you are dreaming off but downside no sleep plus very less amount of citrulline malate leaves you with soreness. PS:Tried on Indian genes here

Apr 12, 2019
Verified Buyer
  • 4 Pina Colada

Product is great, good energy boosting supp, but I wasn’t a fan of pina colada flavor, I’ll try a different flavor next time

Apr 01, 2019
Verified Buyer
  • 10 Black Cherry

This is the best pre I have used. Very easy to mix. No clumping and fast to mix. This flavor is great. Fast acting and lasts the workout. Very much worth it.

Apr 01, 2019
Verified Buyer
  • 10 Black Cherry

Eh, doesn’t work.

Feb 24, 2019
  • 10 Blue Raspberry

Great product, I only use half a scoop and it is enough for me. If I take it after 6, I am up till 2 in the morning. Highly recommend

1 Size
30 Servings
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8 Flavors
Fruit Punch
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Price: £32.99  (£1.10 / Serving)
Flavor Rating: 8.6
Food Supplement Powder

What's in GAT NITRAFLEX Pre Workout

Serving Size 1 Scoop (10 grams)
Servings Per Container30
Amount Per Serving % DV
Niacin 25 mg 156%
Vitamin B12 (as Cyanocobalamin) 6 mcg 250%
Calcium (as Calcium Silicate and Calcium Fructoborate) 34.5 mg 3%
Vasoactive Arginase-Regulating NO Precursor Complex       
N5-Carbamoyl-L-ornithine (Citrulline), 2-Amino-5-(carbamoylamino)pentanoic acid (Citrulline malate), (S)-2-Amino-5-guanidinopentanoic acid hydrochloride (L-Arginine HCl), L-Arginine Alpha-ketoglutarate, (E)-5-(4-hydroxystyryl)benzene-1,3-diol (Resveratrol), 4-((E)-2-(3,5 dimetho-xyphenyl) ethenyl)phenol (Pterostilbene)
Acute Energy, Focus, Intensity, Neuromodulating, Endurance Complex       
3-Aminopropanoic acid (as CarnoSyn®), ethanol, 2-acetylamino-3-(4-hydroxyphenyl)-propanoic acid (N-Acetyl-L-tyrosine), 1,3,7-Trimethyl-1H-purine-2,6(3H,7H)-dione (Caffeine), 2-Aminoacetic acid(Glycine), 2-Amino-4-(ethylcarbamoyl) butyric acid (Theanine)
EU GAT Sports Nitraflex Clinically-Studied Testosterone-Enhancing Complex       
Calcium Fructoborate (CFB) US Patent #5,962,049
[Each scoop contains 325 mg of Caffeine]
Other Ingredients:
Pineapple Fruit Powder, Citric Acid, Silicon Dioxide, Calcium Silicate, Natural And Artificial Flavours, Acesulfame Potassium, Sucralose, FD&C Red #40.

Directions For NITRAFLEX Pre Workout: Training days: Day 1: Begin by assessing your tolerance with half a serving of NITRAFLEX® mixed with 180-240 mL of cold water. Days 2 and beyond: Depending on tolerance, mix 1 serving (1 scoop) of NITRAFLEX® with 295 mL of cold water and consume within 30 minutes before working out. Non-training days: Take 1 serving (1 scoop) upon 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. Optional - Stack with PMP Stim-Free: Take 1 serving of Nitraflex® with 1 scoop of PMP Stim-Free Powder 30 minutes before training for even more dramatic effects.

Warnings: This product is strictly intended for use by healthy persons 18 years of age or older. Each serving (1 scoop) contains 325 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 medication of any kind including but not limited to MAO inhibitors, anti-depressants, 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. This product contains a chemical known to the Stateof California to cause birth defects or other reproductive harm. KEEP OUT OF THE REACH OF CHILDREN. Do not exceed daily recommended dose. Food supplements should not be used as a substitute for a varied diet and a healthy life style. Store in Cool Dry place. Color Additive: Tartrazine (E102) Yellow 5 & Allura Red (E129) Red 40 may have an adverse effect on activity and attention in children.

Hight caffeine content (300 mg per serving). Not recommended for children or pregnant or breastfeeding women.

Food Supplement with Caffeine and Sweeteners

DISTRIBUTED BY: NUTRITION SYSTEMS 216 Walters Road, Arndell Park NSW 2148

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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