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blue raspberry one blue raspberry two blue raspberry three blue raspberry four blue raspberry five Splash of blue preworkout liquid floating container of Killer Instinct

The Apex Predator of Preworkouts

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Killer Instinct™

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floating container of Killer Instinct
  • Arm Flexing Icon

    Maximum Muscle Pump

    Experience heightened vascularity and muscle fullness through optimized vasodilation and hydration. Achieve a powerful pump with improved blood flow*

  • Energy Bolt Icon

    Feel Energized and Awake

    Feel a boost of energy to last your entire workout. Enjoy a smooth descent without a crash. There’s nothing worse than starting a workout feeling tired*

  • Dumbell Icon

    Optimize Performance

    Optimize your performance with improved vasodilation and hydration. Achieve more reps, push your limits, and hit PRs*

  • Brain Icon

    Focus and Mood

    Experience an uplift in mood and heightened focus. Improved cognitive function ensures you stay fully engaged in the moment*

  • Arm Flexing Icon

    Maximum Muscle Pump

    Experience heightened vascularity and muscle fullness through optimized vasodilation and hydration. Achieve a powerful pump with improved blood flow*

  • Energy Bolt Icon

    Feel Energized and Awake

    Feel a boost of energy to last your entire workout. Enjoy a smooth descent without a crash. There’s nothing worse than starting a workout feeling tired*

  • Dumbell Icon

    Optimize Performance

    Optimize your performance with improved vasodilation and hydration. Achieve more reps, push your limits, and hit PRs*

  • Brain Icon

    Focus and Mood

    Experience an uplift in mood and heightened focus. Improved cognitive function ensures you stay fully engaged in the moment*

The Formula

Supplement Facts

Serving Size: 12.06g (1 Scoop) | 24.12g (2 Scoops)

Servings Per Container: 20-40

Ingredient Amount Per 1 Scoop Amount Per 2 Scoops
L-Citrulline 5000mg 10000mg
L-Tyrosine 2500mg 5000mg
GlycerSize™ 1000mg 2000mg
Agmatine Sulfate 1000mg 2000mg
Alpha GPC 50% 300mg 600mg
L-Theanine 100mg 200mg
Caffeine Anhydrous 100mg 200mg
Theobromine 20% 50mg 100mg
Infinergy™ 25mg 50mg

Other Ingredients: Malic Acid, Silicone Dioxide, N&A Flavors, Calcium Silicate, Sucralose, Acesulfame, Potassium, FD&C Blue 1

  • L-citrulline: Research shows it boosts nitric oxide, improving blood flow to muscles for better exercise performance and reduced fatigue. A 10-gram dose is optimal for maximizing benefits.

  • Glycerol: Enhances muscle pump by increasing fluid retention and muscle volumization, improving muscle fullness and pump intensity.

  • Agmatine sulfate: Increases nitric oxide production, improving blood flow during training for a better muscle pump and workout performance. It may also offer benefits for pain resistance.

  • Theobromine: Found in cocoa beans, it boosts exercise pump by increasing blood flow to muscles through vasodilation.
  • L-tyrosine: Boosts mood and focus by influencing dopamine and norepinephrine levels in the brain. Taking 5 grams can support cognitive function during weightlifting.

  • Alpha-GPC: Contains choline, a precursor to acetylcholine, which is important for memory and learning. Doses around 600mg have shown improvements in reaction time, memory, and physical performance.

  • L-theanine: Found in tea leaves, it enhances attention, focus, and reaction time. It also helps counteract caffeine's negative effects like jitteriness and anxiety, while preserving caffeine's mental benefits.
  • Caffeine: Increases energy, endurance, strength, and focus during weightlifting. 200mg is a common effective dose that provides a moderate boost without causing jitteriness or sleep disruptions.

  • Infinergy: Contains malic acid to slow caffeine absorption, providing a more gradual and sustained release of energy. Combining 200mg of caffeine with 50mg of di-caffeine malate can enhance energy and focus during weightlifting while reducing energy crashes.

  • Theobromine: Found in cocoa beans, it offers mild stimulant effects like caffeine, boosting alertness, energy, and mood during workouts. It also promotes better blood flow to muscles, aiding recovery and supporting overall exercise performance.

Need a Loaded, Quality Pre-Workout? You're in the Right Place

Discover the crystal-clear transparency of Killer Instinct's ingredients, leaving no room for deception. Unlike budget pre-workouts, Killer Instinct packs a powerful punch with well-dosed components that don't compromise on taste. Make your muscles the prey with Killer Instinct and experience progress like never before.*

 

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.*

Customer Reviews

Based on 4 reviews
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K
Kylie Knoblauch
Game On

I have tried numerous different types of pre-work drinks and this one tops them all. Typically with pre-works I’ve tried I either have to mix it with juice, choke it down or even plug my nose but not killer instinct. Didn’t experience any crash and burn. Killer instinct doesn’t give you the feeling all tingling. I had the energy after my workout to go on a five mile hike. Definitely would recommend it to anyone!

L
Lisa Bach
Love Killer Instinct!!

I have to say this is by far my favorite pre! It doesn't give me the jitters and yet I feel so focused and energized. Love the taste too! Not too sweet.

J
Jeff
Excellent Pre-Workout!!

Provides me with the energy and supplements I need to have a great workout with awesome results!!!

C
Casey Sandahl
Well developed!

First pre I’ve found that has enough pump and focus ingredients to make a difference

  • Pump
  • Focus
  • Energy