Koka Labz OXYSTIM GEN II Pre Workout 25servings

Supplement Facts

Serving Size: 1 Scoop (17.4 g)Servings Per Container: 25

Ingredient
Amount Per Serving

Sodium (as Pink Himalayan)
300 mg

L-Citrulline Malate 2:1
6,000 mg

Beta-Alanine
3,200 mg

L-Tyrosine
2,000 mg

Agmatine Sulfate
1,000 mg

Alpha GPC 50%
600 mg

Caffeine Anhydrous
350 mg

N-Phenethyl Dimethylamine Citrate
300 mg

2-Aminoisoheptane (DMHA)
200 mg

Theobromine
150 mg

Infinergy® Di-Caffeine Malate
100 mg

Halostachine
75 mg

Synephrine HCl
40 mg

BioPerine® Black Pepper Extract (95% Piperine)
10 mg

Yohimbine HCl
3 mg

Alpha Yohimbine 90%
2 mg

Other Ingredients: Citric Acid, Silicon Dioxide, Natural Flavours, Sucralose, Acesulfame Potassium.

Ingredient Breakdown

L-Citrulline Malate 2:1 – 6,000 mg

A proper 6-gram dose forms the foundation of the pump side of OXYSTIM GEN II. Citrulline is widely used to increase circulating arginine availability and support nitric oxide production, helping promote stronger blood flow and muscle pumps during training.
Combined with Agmatine, this gives GEN II considerably more pump support than stimulant-heavy formulas that sacrifice everything else for energy.

Beta-Alanine – 3,200 mg

The classic evidence-based 3.2 g performance dose. Beta-Alanine supports muscular carnosine levels and is primarily used to improve performance during repeated bouts of intense exercise.
This part of the formula aims to keep performance going when sets become uncomfortable, and fatigue begins to accumulate.

L-Tyrosine – 2,000 mg

A massive 2-gram dose of L-Tyrosine. Tyrosine is a precursor involved in the production of catecholamine neurotransmitters including dopamine and noradrenaline.
In a formula this stimulant-heavy, it makes sense: GEN II isn’t designed merely to wake you up—it is designed to keep your head locked into the session.

Agmatine Sulfate – 1,000 mg

A full 1 gram of Agmatine Sulfate adds another dimension to the pump complex. Agmatine is popular in hardcore pre-workouts for supporting nitric oxide signalling and the dense, full muscle pumps lifters chase during high-volume training.

Alpha GPC 50% – 600 mg

Provides 600 mg of 50% Alpha GPC material. Alpha GPC supplies choline, a precursor to acetylcholine—a neurotransmitter heavily involved in attention and neuromuscular signalling.
It complements the L-Tyrosine and stimulant complex to give GEN II a much more complete focus profile.

Caffeine Anhydrous – 350 mg

The first major stimulant hit comes from 350 mg of fast-acting Caffeine Anhydrous.
This alone already places GEN II firmly inside high-stim territory. Caffeine supports alertness, energy, concentration and exercise performance—but here it is only the beginning of the stimulant matrix.

N-Phenethyl Dimethylamine Citrate – 300 mg

A hefty 300 mg dose included in the stimulant and mood-focused portion of the formula. This ingredient separates OXYSTIM GEN II from ordinary mainstream pre-workouts and contributes to its aggressive, high-stim character.

2-Aminoisoheptane (DMHA) – 200 mg

Here is one of the main reasons experienced stim users will look at GEN II: 200 mg DMHA per full scoop.
DMHA is widely recognised within the hardcore pre-workout scene and is used in specialist formulas aimed at producing a considerably more aggressive stimulant experience than caffeine alone.
Stacked with caffeine, N-Phenethyl Dimethylamine Citrate, Synephrine, Yohimbine and Alpha Yohimbine, it makes it very clear who this formula is intended for.

Theobromine – 150 mg

Theobromine is a methylxanthine related to caffeine. At 150 mg, it adds another stimulant component and complements the faster caffeine hit.

Infinergy® Di-Caffeine Malate – 100 mg

OXYSTIM doesn’t rely on a single caffeine source. Alongside 350 mg Caffeine Anhydrous, it includes 100 mg Infinergy® Di-Caffeine Malate, a bonded form that combines caffeine and malic acid.
The dual-source approach gives the stimulant matrix a broader profile than simply throwing more standard caffeine into the scoop.

Halostachine – 75 mg

75 mg Halostachine pushes the formula even deeper into specialist high-stim territory. It is included as part of the multi-layered adrenergic/stimulant matrix rather than making caffeine do all the work.

Synephrine HCl – 40 mg

Synephrine is another sympathomimetic ingredient commonly encountered in hardcore energy and thermogenic formulas. GEN II delivers 40 mg per full serving, adding another component to an already aggressive stimulant stack.

BioPerine® – 10 mg

A branded black pepper extract standardised to 95% piperine. BioPerine is commonly included in advanced formulas to support the bioavailability of accompanying ingredients.

Yohimbine HCl – 3 mg

3 mg Yohimbine HCl adds a potent adrenergic component to GEN II. Yohimbine is particularly well known among experienced users of hardcore pre-workouts and thermogenic products.
This is another reason beginners should not treat GEN II like an everyday entry-level pre-workout.

Alpha Yohimbine 90% – 2 mg

The formula finishes with 2 mg Alpha Yohimbine 90%, adding another powerful stimulant component on top of Yohimbine HCl.
With DMHA, two caffeine sources, Synephrine, Halostachine, Yohimbine and Alpha Yohimbine all present, OXYSTIM GEN II sits firmly at the hardcore end of the Koka Labz range.