HavoK® Pre-Workout - Blue RazzBlue Razz | GNC

American Metabolix HavoK® Pre-Workout


Item # 505218



  • Flavor
Size: 30 Servings

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Product Information


Intense Pump*
Euphoric Energy*
Explosive Workouts*
Amazing Taste*

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As a dietary supplement, take up to 8 weeks before discontinuing for a minimum of 4 weeks. Take only on workout days.
Pre-Workout: 1 Scoop 30 minutes before workout with 6-8oz water.
Pre-Workout: 1 Scoop 30 minutes before workout with 6-8oz water.


Do not use if pregnant or nursing. Not intended for use by those with a medical condition and only intended to be consumed by healthy adults 18 years of age or older. Before using this product consult with your physician if you are using any prescription or over the counter medication or if you have any pre-existing medical condition including but not limited to: high or low blood pressure, cardiac arrhythmia, stroke, heart, liver, kidney or thyroid disease, seizure disorder, psychiatric disease, diabetes, difficulty urinating due to prostate enlargement or if you are taking a MAOI (Monoamine Oxidase Inhibitor) or any other medication. Discontinue use and consult you health care professional if you experience any adverse reaction to this product. Do not use if safety seal is broken or missing.

Other Ingredients

Maltodextrin, Citric Acid, Natural & Artificial Flavor, Sucralose, Acesulfame Potassium, Calcium Silicate , FD&C Blue #1
American Metabolix
1083 FM 812, Cedar Creek, TX 78612

Nutrition Facts

Serving Size  1 Scoop
Servings Per Container  30

Amount Per Serving     % DV

HavoK® Strength & Pump Matrix (CreatineMonohydrate, L-Arginine, L-Citrulline malate)  3450 mg   **
HavoK® Anti Muscle Fatigue (Beta Alanine)  1750 mg   **
HavoK® Energy & Focus Blend  1102 mg   **
   N-Acetyl L-Tyrosine   **
   Caffeine Anhydrous (250mg)   **
   Hordenine HCL 98%   **
   Synephrine HCl   **
   L-Taurine   **
   D-Ribose   **
   Niacinamide   **
   Rauwolscine   **

** Daily Value (DV) not established.


3.7 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Blast off!!
This thing gets me going crazy in my workouts. It is definitely the strongest pre workout I have used since DMAA. I am a girl, and this is perfect for me. I run and then lift, and this tastes so good, i actually look forward to using it all the time!!!

I even replace my coffee in the morning with this, bc the focus at work is so incredible. Thanks American Metabolix for making this! Bikini time!! ;)
March 24, 2017
This is the only concentrate preworkout that has enough energy for me. I start with cardio and this helps me kill that at the beginning of the workout, and lasts the whole way through my weight training. I get great pumps and the energy is so positive feeling. I used to use the wal mart stuff, but this is just as affordable, and twice as good. Tastes great too. They really hit a homerun with this one.
March 24, 2017
Do not get this! You'll feel it in you right before you lift but it makes you crash super fast. After I was done with an hour and a half lift I would feel tingley again after 10 minutes of sitting.
August 8, 2016