Metabolic Nutrition E.S.P Extreme High – Stimulant Pre-Workout 50/25

Metabolic Nutrition E.S.P. Extreme is a hardcore pre-workout created for advanced users who demand maximum energy, intensity, and focus from their training. What makes this formula stand out is its fully adjustable dosing system, which allows users to choose between 1, 2, or 3 scoops, depending on their stimulant tolerance and training demands. This isn’t a pre-workout for beginners — it’s designed for those who want a no-compromise kick before hitting the gym.

With three distinct blends targeting energy, focus, and endurance, E.S.P. Extreme delivers a robust and sustained training experience from start to finish.

Ingredient Breakdown (per 3 scoops / 16.5g):

Extreme Energy Matrix – 600mg total caffeine
This formula combines:

• Caffeine Anhydrous (400mg) – Delivers fast-acting energy, mental alertness, and drive.

• Di-Caffeine Malate (100mg) – A slower-releasing form of caffeine that helps prevent the crash.

• Theobromine (100mg) – A milder stimulant related to caffeine, supporting mood and longer-lasting stimulation.

Together, these three ingredients form a high-energy matrix that delivers an intense yet balanced wave of energy, characterised by a rapid onset and extended duration.

Extreme Mental Matrix – 1,000mg

• Choline Bitartrate – 600mg
  Included for its role in acetylcholine production, which is associated with sharper focus and faster reaction times during training.

• N-Acetyl L-Tyrosine – 400mg
  A stable form of L-Tyrosine that supports dopamine and norepinephrine production — neurotransmitters involved in mental alertness, motivation, and stress response.

• Eria Jarensis – 300mg
  A well-known focus enhancer and mood booster, Eria Jarensis is a popular choice in high-stim pre-workouts for its euphoric-like effects and heightened mental drive.

Extreme Endurance Matrix – 5,001mg

• Beta-Alanine – 5,001mg
  Included at an aggressive dose, beta-alanine supports endurance and training volume by buffering lactic acid. The tingling (paresthesia) sensation is intense with three scoops and is often used as an indicator of intensity by experienced users.

Extreme Absorption Matrix

• Black Pepper Extract – 15mg
  Enhances the bioavailability of the entire formula, ensuring faster uptake and greater ingredient effectiveness.

Electrolyte & B-Vitamin Matrix
The product also includes a blend of key vitamins (B6, B12, B3), minerals (sodium, potassium, calcium, magnesium), and electrolytes. These support hydration and muscle function, especially during intense training sessions where sweat loss can impact performance.

Who is it for?

E.S.P. Extreme is best suited for:

• Experienced pre-workout users with high stimulant tolerance

• Individuals training in high-intensity or strength-focused disciplines

• Athletes who prefer customisable dosing depending on their session

• Users seeking sharp focus, long-lasting energy, and a strong mental push

Not recommended for beginners, stimulant-sensitive individuals, or those training late in the day.

Dosage – Timing – Follow-Up

Start with one scoop (5.5g) mixed with water 20–30 minutes before training to assess tolerance.
Depending on your caffeine tolerance and training intensity, increase to 2 or 3 scoops.
Do not exceed three scoops (16.5g) in 24 hours.
Stay hydrated and avoid combining with other sources of caffeine.

Our opinion

E.S.P. Extreme does precisely what it promises — the energy hits fast and hard, and the mental focus is one of the best we’ve felt in this category. The three-scoop system makes it super flexible, and even one scoop packs more of a punch than many full servings of other pre-workouts. There’s no pump blend here; it’s all about pure drive, alertness, and energy. If you’re stim-tolerant and want a product that delivers consistently, this is a safe bet.