Overall Rating
4.8 out of 5 stars
Reviews (496)
Verified Buyers (464)
Review Graph
  • 5 star
    81%

  • 4 star
    16%

  • 3 star
    2%

  • 2 star
    0%

  • 1 star
    1%

Top Rated Flavors
  • 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)
  • Pink Lemonade (4.7/5)
  • Grape (4.7/5)
  • Pineapple (4.7/5)
  • Black Cherry (4.7/5)
  • Green Apple (4.6/5)
  • Orange (4.6/5)
  • Fruit Punch (4.6/5)
  • Blood Orange (4.5/5)
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  • Most Recent
  • Most Helpful
  • All Reviews (496)
  • Verified Buyers (464)
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Overall Rating
  • Grape
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Ravi B
Verified Buyer
crazy focus... pump last the whole workout... no complains...*
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2023-05-27 14:45:26Z
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Overall Rating
  • Black Cherry
  • Grape
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Jer W
Verified Buyer
Black cherry flavor is surprisingly good, smooth pre-workout with good energy*
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2023-05-26 11:42:42Z
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  • Black Cherry
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Nathan N
Healthy Lifestyle
Verified Buyer
Taste is fine, pump and focus are there.  Always a relaible product and a good deal this time.*
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2023-05-22 11:21:50Z
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  • Fruit Punch
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Anthony T
Build Muscle
Verified Buyer
Great focus and energy, really felt the extra get up when working out! Will order again.*
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2023-05-20 12:18:02Z
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  • Black Cherry
  • Green Apple
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Nathaniel Z
Verified Buyer
I was surprised at how good this made me feel - it is a nice change up to my regular preworkout - highly recommended*
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2023-05-19 14:59:25Z
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  • Green Apple
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Jordan G
Verified Buyer
Not bad but not great either. Flavor is kinda bland and chalky as well *
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2023-05-17 13:37:38Z
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  • Black Cherry
  • Green Apple
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James P
Verified Buyer
The power mixes easily in water, great flavor and provides good pumps!*
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2023-05-16 10:47:54Z
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  • Fruit Punch
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Brandon R
Verified Buyer
Great focus, energy, and pump not a fan of the flavor though*
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2023-05-12 13:01:53Z
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  • Fruit Punch
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Sagar C
Increase Strength
Verified Buyer
Amazing flavor and Amazing quality Perfect for strength gains*
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2023-05-09 13:35:11Z
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Overall Rating
  • Watermelon
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Edgar M
Build Muscle
Verified Buyer
Don't really like the flavor and also don't feel a lot of changes after using it*
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2023-05-06 15:02:21Z
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  • Fruit Punch
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Keith M
Verified Buyer
Has been one of my "goto" products for several years. Excellent taste and energy.*
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2023-04-28 16:09:14Z
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  • Black Cherry
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Douglas R
Burn Fat
Verified Buyer
Great taste and very easy to mix!!! I would highly recommend this product*
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2023-04-28 16:08:46Z
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Overall Rating
  • Green Apple
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Mario F
Verified Buyer
By far my favourite pre workout supplement, works really well*
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2023-04-28 15:16:17Z
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Overall Rating
  • Grape
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John H
Verified Buyer
Grape flavor is on point.  Nice clean energy focus and pumps. *
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2023-04-21 16:41:59Z
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  • Grape
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Alex L
Verified Buyer
Nitraflex always a good brand and good product will always buy again*
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2023-04-20 14:09:03Z
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  • Blood Orange
  • Grape
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Roneel N
Verified Buyer
My go to pre-workout never can you go wrong with nitraflex been using this for years*
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2023-04-18 21:29:31Z
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  • Green Apple
  • Watermelon
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MUSTAFA A
Verified Buyer
Has Good taste for every flavor. One of legendary preworkout*
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2023-04-17 22:50:22Z
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  • Black Cherry
  • Grape
  • Green Apple
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Fulvir
Other
Verified Buyer
nitra flex is great pre workout,as well performance going up in couple days.if somebody wanna get result in few days order it today.thanks.*
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2023-04-16 07:17:24Z
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  • Fruit Punch
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Steve A
Verified Buyer
Mixes well and good taste. Good price if you can purchase it on sale.*
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2023-04-15 22:29:03Z
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Overall Rating
  • Watermelon
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GERALD STAGNO
Build Muscle
Verified Buyer
mixes well along with a good taste plus I do enjoy the niacin and boron*
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2023-04-08 05:08:04Z
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  • Black Cherry
  • Watermelon
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Alejandro A
Verified Buyer
Awesome energy & pump! Love it. Would recommend to anyone who needs that extra kick. *
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2023-04-08 00:57:10Z
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  • Blood Orange
  • Grape
  • Watermelon
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Jesus M
Healthy Lifestyle
Verified Buyer
This pre workout is one of the Best ones Ive ever tried. I felt a big difference during my workout. I highly recommened.*
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2023-04-07 21:48:14Z
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  • Grape
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Jer W
Verified Buyer
Solid pre-workout with consistent energy, flavor is good as well*
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2023-04-05 10:24:03Z
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  • Green Apple
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Jesus M
Healthy Lifestyle
Verified Buyer
Very very very very good, 100% recomended ..................*
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2023-04-05 03:47:56Z
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  • Green Apple
  • Watermelon
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ERNESTO R
Verified Buyer
I always get a good workout after drinking Nitraflex. Love the pump it gives*
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2023-04-01 12:20:28Z
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  • Green Apple
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Jesus M
Healthy Lifestyle
Verified Buyer
Very very very very good....................................*
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2023-03-31 21:33:34Z
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  • Green Apple
  • Watermelon
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Ryan K
Build Muscle
Verified Buyer
Great pre workout! Pumps are insane! I will definitely buy again.*
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2023-03-31 18:01:06Z
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  • Blood Orange
  • Fruit Punch
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Ravi B
Verified Buyer
Feel the pump... stay focus and kill the workout session with this pre.....*
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2023-03-30 12:00:52Z
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  • Fruit Punch
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sergio a
Build Muscle
Verified Buyer
It is the best pre-workout, its reaction is immediate and the taste is very, very good*
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2023-03-30 06:27:50Z
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  • Green Apple
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Jody R
Verified Buyer
Always love any product from this company. High quality as always. *
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2023-03-28 15:56:01Z
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  • Blood Orange
  • Watermelon
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Cameron P
Verified Buyer
Delicious flavor and great workouts when taking this preworkout.*
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2023-03-27 15:16:20Z
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  • Watermelon
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Kyle S
Build Muscle
Verified Buyer
This is one of the best pre workout powder out there. I highly recommend when you can get it on sale*
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2023-03-27 14:24:34Z
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  • Watermelon
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Brenton P
Verified Buyer
Taste good, awesome focus and energy during my work out. Will buy again.*
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2023-03-16 14:36:13Z
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  • Blood Orange
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Wandson S
Verified Buyer
it's not so bad, you can use the flavor it's different I thought I would have more performance in training*
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2023-03-15 10:56:58Z
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  • Watermelon
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Steve A
Verified Buyer
Good product. Mixes well with no residual powder at the bottom of shaker. Good value when purchased on sale.*
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2023-03-12 20:25:01Z
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  • Green Apple
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Big e money
Verified Buyer
Incredible prework,I just love the flavor and it also gives you out of this world energy !*
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2023-03-08 15:56:15Z
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  • Blood Orange
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Billy C
Verified Buyer
Best preworkout on the market in my opinion. The L-citrulline is NOT Malate, which means its purity is in tact and thus more effective. Boron citrate provides the T boost effect which is icing on the cake. Excellent, excellent product.*
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2023-03-01 16:39:56Z
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  • Black Cherry
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Douglas R
Burn Fat
Verified Buyer
Easy to mix and taste great!!!! No chalky taste and I like the pump and NO CRASH!!!!*
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2023-02-23 00:07:20Z
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  • Fruit Punch
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Robert V
Healthy Lifestyle
Verified Buyer
Este es un excelente producto ideal para los resultados que estoy buscando para tener mas rendimiento y mejor perfomance durante el entreno*
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2023-02-14 02:41:08Z
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  • Green Apple
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Alen R
Verified Buyer
Excellent! Tasty, gives a lot of energy, not heavy for my digest system*
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2023-02-05 21:39:25Z
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  • Green Apple
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Miguel B
Verified Buyer
Green apple taste great! Great pre workout in the morning. Helps you wake up and get a good session in. *
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2023-02-01 11:52:49Z
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Overall Rating
  • Lemon Tea
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Gabriele P
Build Muscle
Verified Buyer
Good pump but not so special, very nice taste. I suggest it and I'll buy it again.*
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2023-01-23 19:33:10Z
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  • Blood Orange
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Kent J
Verified Buyer
After taking pre-workout for years, this is still one of the only ones that gives me the energy and pump I'm looking for*
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2023-01-19 19:09:00Z
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  • Green Apple
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Steve C
Build Muscle
Verified Buyer
I really like the energy, focus and pump this preworkout gives me. The green apple is tasty*
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2022-12-21 18:34:01Z
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  • Watermelon
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Ramon G
Verified Buyer
Great product. Gives me good energy without dehydration. Use it before my workouts.*
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2022-12-13 09:51:31Z
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  • Grape
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Josue G
Verified Buyer
Nice flavor and pump!! This pre has helped me to increase my strength and my focus in every work out*
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2022-12-08 02:26:21Z
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  • Blue Raspberry
  • Grape
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Zebadiah J
Increase Strength
Verified Buyer
Excellent pre-workout. I've been training for years and this has definitely been one of the best products for price value. I take it before lifting or running.*
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2022-11-28 12:07:06Z
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  • Watermelon
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Eric C
Verified Buyer
Best pre workout to me hands down. Flavor of s good and it mixes excellent *
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2022-11-21 20:45:53Z
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  • Green Apple
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Yuri F
Verified Buyer
very good pre workout, the taste is very good and you get the pump*
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2022-11-21 19:39:35Z
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  • Green Apple
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Yuri F
Verified Buyer
the taste is very good, not artificial. The focus and pump is very strong. I like it*
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2022-11-21 19:38:33Z
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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.