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US GEN FORCE – INJECT Pre-workout

U.S. Gen Force

from £41.08

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Orders placed before 4 pm are shipped on the same day

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What Is US Gen Force Inject?

INJECT by US Gen Force is a concentrated pre-workout built for users who prefer compact servings with a broad spectrum of amino acids, botanicals and functional stimulant categories. The formula is structured to deliver a multi-layered activation experience with a combination of citrulline, carnitine, adaptogenic herbs, and energy-driven compounds.

What We Think After Using It (CTL Experience)

INJECT delivers a compact yet surprisingly dense serving profile. Testers at CTL described a rapid rise in training readiness, a focused drive at session start, and a layered feel from its combination of adaptogens, amino acids, and energising components. The overall experience sits in the category of concentrated, high-intensity pre-workouts suited to users who prefer multi-phase blends.

Ingredient Breakdown (per 1 scoop / 5.9 g)


Core Performance Matrix




  • Citrulline Malate 3000 mg – A combination of citrulline and malic acid used in high-intensity formulas.


  • ALC 500 mg – Acetylated form of L-carnitine.


  • Arginine AKG 250 mg – Arginine bonded with alpha-ketoglutarate.


  • AgmaMax 250 mg – Agmatine sulfate in standardised form.


  • Taurine 250 mg – Sulfur-based amino compound widely used in sports supplementation.


Explosive Energy Blend 1500 mg




  • Methyliberine 200 mg – Xanthine-type compound used in advanced formulas.


  • Rhodiola Rosea – Adaptogenic root extract.


  • Ashwagandha – Traditional adaptogenic herb.


  • Bacopa Monnieri – An Herbal extract commonly used in focus blends.


  • N-Acetyl L-Tyrosine – Acetylated tyrosine form supporting mental readiness.


  • Vitamin C – Water-soluble essential vitamin.


  • Caffeine Anhydrous 150 mg – Purified caffeine source.


  • Mucunа Pruriens – Botanical extract containing a natural L-DOPA source.


  • Niacin – B-complex vitamin.


  • Syn HCL – Protoalkaloid from citrus species.


  • Higenamine HCL – Plant-origin compound.


  • Hordenine HCL – Natural phenethyl-type component.


  • Sultiamine – Enhanced form of thiamine.


  • Folate – Folic acid source.


  • Vitamin B6 – Pyridoxine-based vitamin.


  • Vitamin B12 – Methylcobalamin variant.


  • Halostachine HCL – Botanical alkaloid derivative.


  • Higenamine HCL – Plant-based functional compound.


  • N-Acetyl L-Tyrosine – Additional tyrosine input.


  • Vitamin C – Additional ascorbic acid portion.


  • Caffeine Anhydrous – Additional activator.


  • Mucuna Pruriens – Secondary inclusion.


  • Niacin USP – B-group vitamin source.


  • Syn HCL – Additional protoalkaloid source.


  • Higenamine HCL – Additional inclusion.


  • Sultiamine – B-complex related form.


  • Folate – Folic acid.


  • Vitamin B6 – Pyridoxine.


  • Vitamin B12 – Cyanocobalamin-class variant.


Other Ingredients


Natural flavours, sucralose, citric acid, silicon dioxide.

How to use Inject by US Gen Force?


Mix one scoop with water and consume 20–30 minutes before training.Do not exceed the recommended serving.

Warnings


For experienced users only. Contains multiple stimulant categories.

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INJECT by US Gen Force is a concentrated pre-workout formula built for users who prefer compact servings with a broad ingredient profile. Each scoop weighs just 5.9g and combines amino acids, botanicals, adaptogenic herbs, and energising compounds for a multi-layered training experience.

INJECT is a concentrated pre-workout with a compact 5.9g scoop size. The small serving format is designed to deliver a comprehensive ingredient profile in a dense, high-potency serving without the bulk of larger scoops.

INJECT is formulated to support rapid training readiness, focused drive, pump, endurance, and a multi-phase activation experience. Users at CTL described a fast-onset of training readiness combined with sustained focus from the adaptogen and stimulant combination.

The Core Performance Matrix includes Citrulline Malate (3,000mg), Acetyl L-Carnitine (500mg), Arginine AKG (250mg), AgmaMax Agmatine Sulfate (250mg), and Taurine (250mg) to support blood flow, muscle pump, and endurance.

The Explosive Energy Blend (1,500mg) includes Rhodiola Rosea, Ashwagandha, and Bacopa Monnieri alongside Methyliberine (200mg) and N-Acetyl L-Tyrosine. These adaptogens are included to support focus, stress resilience, and sustained performance.

Methyliberine is a xanthine-type compound dosed at 200mg in the Explosive Energy Blend. It is included in advanced pre-workout formulas for its role in supporting rapid energy onset and mental drive.

AgmaMax is a standardised form of agmatine sulfate included in the Core Performance Matrix at 250mg. Agmatine is commonly used in pre-workout formulas for its role in supporting nitric oxide pathways and pump.

Mix one scoop (5.9g) with water and consume before training. Due to its concentrated formulation and stimulant content, users should assess tolerance before use and avoid combining with additional stimulant products.

INJECT is designed for experienced pre-workout users who prefer concentrated, multi-phase formulas. Its combination of adaptogens, amino acids, and energising compounds suits those seeking a structured, high-intensity pre-training product.

US Gen Force INJECT Pre-workout is available through Cross The Limits, an authorised UK retailer. Orders placed before 4pm are dispatched the same day, with free UK shipping on orders over £89.