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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.
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.
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.
Metabolic Nutrition E.S.P. Extreme High-Stimulant Pre-Workout is a hardcore pre-workout powder built around an adjustable 1-to-3-scoop dosing system, giving between 5.5g and 16.5g per serving. The product page describes it as created for advanced users who demand maximum energy, intensity and focus.
Metabolic Nutrition E.S.P. Extreme combines an Extreme Energy Matrix of caffeine anhydrous, di-caffeine malate and theobromine (600mg total caffeine at three scoops), an Extreme Mental Matrix of choline bitartrate, N-acetyl L-tyrosine and Eria Jarensis (1,000mg), an Extreme Endurance Matrix of beta-alanine (5,001mg), and black pepper extract for absorption.
Yes, Metabolic Nutrition E.S.P. Extreme is stimulant based, with its Extreme Energy Matrix providing 600mg of total caffeine from caffeine anhydrous, di-caffeine malate and theobromine at a full three-scoop serving, plus Eria Jarensis. With this much stimulant content, it is not recommended to take a dose late in the day.
Eria Jarensis is included in the Extreme Mental Matrix of Metabolic Nutrition E.S.P. Extreme, dosed as part of a 1,000mg blend alongside choline bitartrate and N-acetyl L-tyrosine. The product page describes it as a well-known focus enhancer and mood booster popular in high-stimulant pre-workouts.
Metabolic Nutrition E.S.P. Extreme is built around a 600mg caffeine energy matrix, a 1,000mg mental matrix including Eria Jarensis and N-acetyl L-tyrosine for focus, a 5,001mg beta-alanine endurance matrix for training volume, and black pepper extract to support absorption of the full formula.
According to the label, Metabolic Nutrition E.S.P. Extreme should be started at one scoop (5.5g) mixed with water 20-30 minutes before training to assess tolerance, then increased to 2 or 3 scoops depending on caffeine tolerance and training intensity.
No. The product page states directly that Metabolic Nutrition E.S.P. Extreme is not a pre-workout for beginners, describing it as a hardcore formula created for advanced users who want a no-compromise kick before training.
Metabolic Nutrition E.S.P. Extreme can commonly be stacked with non-stimulant products such as creatine, intra-workout aminos, or a post-workout protein shake. Because it is a high-stimulant pre-workout, it should not be combined with other stimulant products, including fat burners or additional pre-workout formulas.
Metabolic Nutrition E.S.P. Extreme High-Stimulant Pre-Workout is intended for healthy adults over the age of 18. Do not exceed the recommended serving. Because this is a high-stimulant formula, avoid taking it late in the day and do not combine it with other stimulant products. If you are pregnant, breastfeeding, taking medication or have a pre-existing medical condition, consult a doctor before use.
Metabolic Nutrition E.S.P. Extreme High-Stimulant 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.
At Cross the Limits, we are proud of our approach to stocking only the finest quality products for our customers, and Metabolic Nutrition supplements are no different. They’re a trusted brand with over 30 years of expertise in developing fitness supplements that truly work. Founded by a clinical pharmacist and nutritionist, Dr. Cohen, Metabolic Nutrition has revolutionised the supplement industry by focusing not just on the “coolness” factor, but mixing in precision, quality, and—most of all—scientifically validated formulations.
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