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Questions? Call us at 888-855-7919.
Questions? Call us at 888-855-7919.

PRE-WORKOUTS WITHOUT STIMULANTS

Hi-Tech's stimulant-free pre-workout collection is built for lifters who want the pump, blood flow, and muscular endurance benefits of a pre-workout supplement without the caffeine. These non-stim pre-workout formulas focus on nitric oxide production and nutrient delivery, so they fit evening workouts, caffeine-sensitive users, and anyone who already gets their stimulants elsewhere.

 

  • N.O. Overload™ Hi-Tech Pharmaceuticals

    N.O. Overload™

    $ 24.75

    Pre-Workout Formulation that Blasts Muscle with over 30 Compounds! Utilizes the Novel Approach of Arginase Inhibition to Push the Boundaries of Ni...

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    $ 24.75
  • N'Gorge® Xtreme Hi-Tech Pharmaceuticals

    N'Gorge® Xtreme

    $ 37.95

    Massive Muscle Pumps Roadmap-Like Vascularity Increased Endurance Nitic Oxide Production Are you looking for massive muscle pumps and vascularit...

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    $ 37.95
  • HEMAVOL™ iForce Nutrition

    HEMAVOL™

    $ 29.99

    Introducing the world's first plasma volumizer, HEMAVOL™! Hemavol™ was specifically engineered to generate skin splitting muscle pumps and myofibr...

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    $ 29.99
  • HydroMax® APS Nutrition

    HydroMax®

    $ 29.95

    Bodybuilders know that glycerol provides some of the most massive and engorging muscle pumps possible. HydroMax® helps increase visible vascularity...

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    $ 29.95

N'Gorge® Xtreme

N'Gorge® Xtreme

N'Gorge® Xtreme is a caffeine-free pre-workout built entirely around the pump, with no stimulants at all. It supports nitric oxide production and blood flow for fullness and vascularity that shows up from the first use, with no loading phase. Because it is a stim-free formula, it works late in the day or stacked on top of a stimulant pre-workout without adding to your caffeine intake.

  • Delivers muscle pumps and vascularity without any stimulants
  • Tablet format, easy to stack with other products
  • Works for evening workouts with no effect on sleep
  • 40 servings per container
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N'Gorge® Xtreme Hi-Tech Pharmaceuticals

Why Shop Hi-Tech Pharma

We have built sports nutrition products in the United States since 1997, with formulation, manufacturing, and testing handled in our own facilities rather than outsourced to an outside packer. Our incoming raw materials go through as many as 20 purity and potency checks, helping us verify that the ingredient amounts listed on the label match what is in the bottle. Our in-house R&D lab is also where the delivery technology behind our stim-free formulas is developed.

Learn more on our About Hi-Tech Pharmaceuticals page, explore our manufacturing process, browse all products, or send us a question through our contact page.

Frequently asked questions

A stimulant-free pre-workout is a pre-workout formula with no caffeine or other stimulants. Instead of raising energy, it focuses on the pump and performance side, usually through nitric oxide ingredients like citrulline and agmatine that support blood flow. Products like N'Gorge® Xtreme and HemaVol™ are built this way for people who want training support without the stimulants.

A few reasons. Some people are sensitive to caffeine, some train at night and do not want it disrupting sleep for hours afterward, and some already hit their 400 mg daily caffeine ceiling through coffee and other sources. A non-stim pre-workout gives you the pump and endurance benefits without adding to that total, which makes it a practical option for evening workouts.

Yes, and this is one of the main reasons they exist. Because a stim-free formula adds no caffeine, you can pair it with a stimulant-based pre-workout to control energy and pump separately, or add it to a lower-caffeine option for more pump. Just do not double up on two stimulant products, since caffeine adds up fast across sources. Watch for ingredient overlap the same way you would with any supplement stack.

They work on the pump and endurance side, not the energy side. The nitric oxide ingredients in these formulas support blood flow and vasodilation, and beta-alanine supports muscular endurance on longer sets. What they will not do is give you the alertness or drive of caffeine. If you want measurable strength support to pair with your pre-workout, creatine monohydrate is the most studied option and is also stimulant-free.

They can be a better fit, since they avoid stimulants that some sports organizations restrict, but the responsibility is on the athlete. When in doubt, choose products third-party tested for your sport and clear anything with your team's medical staff.