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GAT Sport Nitraflex

A Product
Extreme Pumps, Increased Strength*
  • 1-scoop potency
  • High citrulline:arginine ratio
  • Clinically validated Nitrosigine®
  • Creatine free
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Deals
Buy 1 Get 1 50% Off
Buy 1 Get 1 50% Off
Buy 1 GAT Sport Nitraflex 30 Servings and get 1 50% Off! Limited time only.
Buying Options
$29.99 29.9900
30 Servings
30 Servings | $1.00 Per Serving
Buy 1 Get 1 50% Off
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Nutrition Info

30 Servings Black Cherry

Serving Size: 1 Scoop
Servings Per Container: 30
Amount Per Serving
Amt
%DV
Calories
5
Total Carbohydrates
1g
0%
Niacin
25mg
156%
Sodium
85mg
4%
NITRAFLEX PROPRIECEUTICAL BLEND
6521mg
†
Vasoactive Arginase-Regulating NO Precursor Complex
L-Citrulline, Arginine Silicate Inositol (as Nitrosigine®), Resveratrol, Pterostilbene
Acute Energy, Focus, Intensity, Neuromodulating, Endurance Complex
Beta-Alanine, L-Tyrosine, Caffeine Anhydrous, DMAE Bitartrate, L-Theanine, Rauwolfia Vomitoria Root Extract
Clinically-Studied Testosterone-Enhancing Complex
Boron Citrate
200mg
†
* % Daily Value is based on a 2,000 calorie diet. Your daily values may be higher or lower based on your calorie needs.
† Daily Value (DV) not established.
Ingredients
Citric Acid, Malic Acid, Silica, Calcium Silicate, Sodium Bicarbonate, Natural Flavor, Sucralose, Natural Sweetener Blend (Erythritol, Oligosaccharides, Natural Flavors)

Contains 325mg Caffeine Anhydrous.

Begin by assessing your tolerance with half a serving of NITRAFLEX® mixed with 5oz of cold water. Consume within 30 minutes before working out. Depending on tolerance, mix 1 serving (1 scoop) of NITRAFLEX with 8-10oz of cold water and consume within 30 minutes before working out. Do not take within 5 hours of bedtime. DO NOT TAKE MORE THAN 1 SCOOP WITHIN 24 HOURS.

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. 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 State of California to cause birth defects or other reproductive harm. KEEP OUT OF THE REACH OF CHILDREN.

Directions
Warnings
Expand Info
Product Information

Nitraflex Advanced

Just when you think you’ve hit the wall and you are on your last rep of the session, NITRAFLEX ADVANCED kicks in and says, NOPE, you’re going right through that wall. For well over a decade and through grind after grind, trainers and bodybuilders who know, recommend NITRAFLEX as the preeminent pre-workout. NITRAFLEX ADVANCED is a formulaic powerhouse that crushes any session with extreme pumps, pushing beyond all expectation.*

  • Explosive Energy*
  • Intense Focus*
  • Extreme Pumps*
Male athlete performing cable pulldowns highlighting Nitrosigine, 325mg Caffeine, and 3x Strength

EXPLOSIVE ENERGY

The exclusive NITRAFLEX ADVANCED formula arms you in your fight against the gym iron with 325mg caffeine, 1000mg of nitrosigine, and a clinically researched dose of boron in every scoop. The volume of energy and focus has been cranked way up!*

Athlete performing pushups highlighting extreme pumps and increased strength

INTENSE FOCUS

The cognitive enhancers in NITRAFLEX ADVANCED contain unique ratios of scientifically validated compounds that help you remain alert, intense, and focused while you’re flying from set to set with your veins fully dilated and muscles pumped to the extreme.*

Clinically studied ingredients charts showing increases in blood arginine levels and improvement in complex cognitive task time powered by Nitrosigine

EXTREME PUMPS

Break free from average pre-workout formulas and amplify your strength and free testosterone with a high-dose of Nitrosigine and other potent ingredients for fast, explosive training results, every day!*

Nitraflex Advanced key compounds including 1-scoop potency, higher citrulline to arginine ratio, and cognitive enhancers
Reviews
Overall Rating
4.7 out of 5 stars
Reviews (622)
Verified Buyers (589)
Review Graph
  • 5 star
    81%

  • 4 star
    16%

  • 3 star
    2%

  • 2 star
    1%

  • 1 star
    0%

Top Rated Flavors
  • Strawberry Mango (5/5 )
  • Peach Mango (4.9/5 )
  • Peach Iced Tea (4.9/5 )
  • Watermelon (4.8/5 )
  • Blue Raspberry (4.8/5 )
  • Pina Colada (4.8/5 )
  • Lemon Tea (4.8/5 )
  • Blackberry Lemonade (4.8/5 )
  • Black Cherry (4.7/5 )
  • Pink Lemonade (4.7/5 )
  • Blood Orange (4.7/5 )
  • Pineapple (4.7/5 )
  • Grape (4.7/5 )
  • Guava Dragonfruit (4.7/5 )
  • Green Apple (4.6/5 )
  • Fruit Punch (4.6/5 )
  • Orange (4.6/5 )
  • Beach Blast (4.3/5 )
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  • Fruit Punch
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Matthew B
Build Muscle
Verified Buyer
Been using this product for years.  It does just what is supposed to. *
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2026-11-02 13:48:34Z
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Overall Rating
  • Black Cherry
  • Watermelon
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Jason G
Build Muscle
Verified Buyer
Flavors are very good for pre workout. Effectiveness is solid. Good price as well. Ice repurchased several times*
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2026-11-02 09:19:20Z
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  • Black Cherry
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Matthew V
Build Muscle
Verified Buyer
This has to be the best pre workout I have ever had. And I have had many. Great focus and pumps. Great product highly recommend.*
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2026-10-23 09:55:07Z
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  • Black Cherry
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Eric C
Verified Buyer
Best preworkout on the market. Have gotten for years and still works they way I like it. Flavors are great and will buy no other pre*
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2026-10-19 09:36:24Z
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Overall Rating
  • Black Cherry
  • Green Apple
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Tsvetomir N
Build Muscle
Verified Buyer
GAT products are great. Super pump, hardnes, focus, energy. One of my top picks for preworkout. Price is also great.*
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2026-09-22 15:46:04Z
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Overall Rating
  • Grape
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Jon G
Verified Buyer
A little bit chalky but good overall. I generally prefer less caffeine and added eria jarensis but this was the closest product on muscle and strength to the other ingredients I like in my pre *
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0 of 0 found this helpful
2026-09-18 09:00:06Z
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Overall Rating
  • Blue Raspberry
  • Fruit Punch
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Nicholas B
Verified Buyer
Good pre-workout- flavors both taste good - I would recommend*
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2026-07-17 17:18:04Z
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Overall Rating
  • Watermelon
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Eric O
Verified Buyer
Great flavor. Took a full scoop the first time and holy moly.  Definitely recommend a half scoop to assess tolerance.  This will get you going on the days you feel sluggish*
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0 of 0 found this helpful
2026-06-18 13:29:48Z
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Overall Rating
  • Watermelon
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Matt H
Verified Buyer
Love this pre workout, it's strong stuff and gets you sorted for you're workout. Flavour could be stronger, but mix with less water and it's not too bad*
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2026-05-27 15:12:05Z
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Overall Rating
  • Black Cherry
  • Blue Raspberry
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Ron S
Build Muscle
Verified Buyer
Awesome in every way. I've been on this product for months now.*
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2026-05-27 15:12:05Z
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* Muscle & Strength does not imply any medical claims from this review. There are no guarantees of specific results and results may vary.
* 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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