PRE-STACK: Extreme Pre-Workout*

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  • PRE-STACK: Extreme Pre-Workout*
  • PRE-STACK: Extreme Pre-Workout*
  • Pre Stack Extreme Pre Workout, fitness stacks,
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EXTREME PRE-STACK by Fitness Stack 

One of the most hard hitting, most popular and most effective pre-workout supplements is BACK at Advanced Supps!

PRE-STACK hits just right and is available in 2 delicious flavors: GUMMY BEARS & ORANGE MANGO!


As a dietary supplement, mix one (1) scoop with 8 oz of cold water. Consumer 15 to 30 minutes before exercise. Do not consume within 4 hours prior to bedtime. Do not take any other products that contain caffeine or any other stimulants while taking PRE-STACK. Obtain clearance from your health care practitioner before using this or any other dietary supplement.


Consult with your physician before using this product. Do not take this supplement if you have any pre-existing medical conditions. This product should not be used by anyone under the age of 18. Athletes, check with your testing organization before using. User assumes all risks and liabilities related to use of this product. Keep out of the reach of children. Keep in a cool, dry place.

*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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5 Reviews

  • 4
    Pre-Stack Extreme

    Posted by Troy on Jul 20th 2021

    Pre-Stack Extreme pre workout is a great pre workout in just about every way. Great mood elevation and focus, really good long-lasting energy, and a pretty solid pump effect

  • 4
    Good quality for money

    Posted by Kristina on Oct 9th 2020

    I bought the cotton candy flavor for myself and gummy bear for my boyfriend. He loves the gummy bear flavor and I agree it is pretty good. The cotton candy flavor was also good, but did not taste like cotton candy. It tastes more sour. Would get again.

  • 5
    PRE-Stack Extreme Pre-Workout

    Posted by Christopher Clay on Jul 28th 2020

    The flavor is second to none. If you are a fan of the tingling sensation then this is for you. I am able to focus & power through workouts. I find myself making a better mind - muscle connection. I stack this with Surge which is a great to sip on during a workout.

  • 4

    Posted by Vladimir on May 13th 2020

  • 5

    Posted by Vinny Beyers on Oct 5th 2019

    Hands down my favorite PW!! Been using it for several months now with no lost tolerance to the product

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