Spend over £70 and get a free shaker* Spend over £100 and get a t-shirt (size large only)*
*This offer can only be used twice, these deals apply while stocks last

Xtremis Cartel El Jefe Stim Pre-Workout


Xtremis Cartel El Jefe Stim Pre-Workout – The ultimate pre-workout powerhouse.

Unleash your inner boss with explosive energy and focus. Dominate your workouts now with the Xtremis Cartel El Jefe Stim Pre-Workout!

  • Free UK & Ireland shipping on orders over £50

  • Order before 3:00pm for same day processing

Shapeshifter Nutrition Payments And Cards Accepted

Product Description:

Product Description:

Xtremis Cartel El Jefe Stim Pre-Workout

Xtremis Cartel El Jefe Stim Pre-Workout is the ultimate formula for those seeking an electrifying boost to their workout routine. El Jefe is a powerhouse formula packed with a potent blend of ingredients including L-Citrulline, Beta Alanine, Betaine Anhydrous, Pink Himalayan Salt, and more. Backed by science, this potent blend of ingredients is designed to elevate your training sessions to new heights.

Why Choose Xtremis Cartel El Jefe Pre-Workout?

  • Enhanced Muscle Pump: L-Citrulline and Beta Alanine promote nitric oxide production, leading to improved blood flow and muscle pump during workouts, enhancing muscle fullness and vascularity.
  • Increased Endurance: Beta Alanine and Betaine Anhydrous help buffer lactic acid buildup, delaying fatigue and allowing you to push through intense training sessions with enhanced endurance and stamina.
  • Improved Focus and Mental Clarity: Choline Bitartrate and Dimethylethanolamine support cognitive function and mental focus, keeping you dialled in on your workout goals without distractions.
  • Sustained Energy: The combination of caffeine anhydrous, caffeine citrate, and other stimulants provides a powerful and sustained energy boost, keeping you energized and motivated throughout your workout.
  • Metabolism Boost: Ingredients like Theobromine, Synephrine HCL, and Yohimbine HCL may support metabolism and fat burning, helping you achieve your body composition goals.
  • Enhanced Absorption: BioPerine facilitates nutrient absorption, ensuring that your body effectively utilizes the ingredients for maximum benefit.

With Xtremis Cartel El Jefe Stim Pre-Workout, you can experience unparalleled energy, focus, and endurance to crush your fitness goals and unleash your full potential in the gym. Say hello to explosive performance with this cutting-edge formula.

Serving Size: 1 Scoop (11.35 g) / 2 Scoops (22.7 g) – Servings Per Container: 40/20

Ingredient 1 Scoop (11.35 g) 2 Scoops (22.7 g)
L-Citrulline 4000 mg 8000 mg
Beta Alanine 2000 mg 4000 mg
Betaine Anhydrous 1500 mg 3000 mg
Pink Himalayan Salt 250 mg 500 mg
L-Norvaline 150 mg 300 mg
AmentoPump 100 mg 200 mg
Choline Bitartrate 750 mg 1500 mg
Dimethylethanolamine 250 mg 500 mg
EriaPuro 250 mg 500 mg
Theobromine 250 mg 500 mg
Caffeine Anhydrous 150 mg 300 mg
ThinFen 100 mg 200 mg
Halostachine 75 mg 150 mg
Caffeine Citrate 50 mg 100 mg
Infinergy 50 mg 100 mg
Synephrine HCL 40 mg 80 mg
Yohimbine HCL 1.5 mg 3 mg
Alpha Yohimbine 1 mg 2 mg
BioPerine 5 mg 10 mg

How to use Xtremis Cartel El Jefe Stim Pre-Workout:

  1. Begin with a tolerance assessment. Mix 1 scoop (11.35g) of El Jefe with 230ml – 250ml of water, 15-30 minutes before your workout.
  2. Based on your tolerance, you can gradually increase the dosage to a maximum of 2 scoops (22.7g).
  3. Do not exceed the recommended dosage.
  4. Stay hydrated throughout your workout.

Xtremis Cartel Stim Pre-Workout Ingredients:

  • L-Citrulline: Known for its ability to enhance nitric oxide production, L-Citrulline promotes vasodilation, increasing blood flow to working muscles for improved nutrient delivery and muscle pump.
  • Beta Alanine: A precursor to carnosine, Beta Alanine helps buffer lactic acid buildup in muscles, delaying fatigue and supporting endurance during high-intensity exercise.
  • Betaine Anhydrous: Betaine Anhydrous aids in hydration and cellular osmolyte regulation, enhancing muscle endurance and power output.
  • Pink Himalayan Salt: Rich in essential minerals, Pink Himalayan Salt helps replenish electrolytes lost through sweat, maintaining proper hydration levels and preventing cramping.
  • L-Norvaline: L-Norvaline inhibits the enzyme responsible for breaking down nitric oxide, prolonging its vasodilatory effects and enhancing blood flow for improved muscle pumps.
  • AmentoPump: A proprietary blend designed to enhance nitric oxide production and vasodilation, promoting increased blood flow and nutrient delivery to muscles for greater endurance and performance.
  • Choline Bitartrate: Choline is a precursor to acetylcholine, a neurotransmitter involved in muscle contractions and cognitive function. Choline Bitartrate supports focus, concentration, and mind-muscle connection during workouts.
  • Dimethylethanolamine (DMAE): DMAE is a precursor to choline and promotes acetylcholine synthesis, contributing to enhanced focus, mood, and cognitive function.
  • EriaPuro: Eria Jarensis Extract, commonly known as EriaPuro, is a natural stimulant that increases energy, focus, and alertness without the jitters or crash associated with other stimulants.
  • Theobromine: Found naturally in cocoa beans, Theobromine acts as a mild stimulant, providing smooth and sustained energy to fuel your workouts.
  • Caffeine Anhydrous: Caffeine is a well-known stimulant that enhances energy, alertness, and mental focus, helping you push through tough workouts and improve performance.
  • ThinFen: ThinFen is a proprietary blend of natural compounds designed to support thermogenesis and metabolic rate, aiding in fat loss and energy production.
  • Halostachine: Halostachine, also known as N-methylhalostachine, is a stimulant similar to ephedrine that enhances energy, focus, and thermogenesis.
  • Caffeine Citrate: Caffeine Citrate is a fast-acting form of caffeine that provides rapid energy and alertness, ideal for pre-workout supplementation.
  • Infinergy: Infinergy is a patented form of caffeine bound to malic acid, offering sustained energy and mental focus without the crash associated with other stimulants.
  • Synephrine HCL: Synephrine HCL, derived from bitter orange, stimulates fat metabolism and enhances energy expenditure, supporting weight loss and performance.
  • Yohimbine HCL: Yohimbine HCL promotes fat loss by increasing adrenaline levels and releasing stored fat for energy, making it an effective ingredient for enhancing body composition.
  • Alpha Yohimbine: Alpha Yohimbine is a more potent form of yohimbine that further supports fat loss and energy production.
  • BioPerine: BioPerine is a patented form of black pepper extract that enhances nutrient absorption and bioavailability, maximizing the effectiveness of the other ingredients in the formula.

Allergen Information:

Suitable for most dietary preferences and restrictions. However, if you have known allergies or specific dietary concerns, it’s advisable to consult with a healthcare professional before incorporating this product into your fitness routine. Produced in a facility which processes products containing nuts, milk, gluten, egg, soya, shell fish and peanuts.


  • Stick to the recommended serving size, and avoid exceeding it.
  • Intended for individuals aged 18 and older.
  • Discontinue use and seek advice from a healthcare professional if you experience any adverse reactions.
  • Not recommended for pregnant or nursing mothers.
  • Keep out of reach of children.
UK & Ireland Shipping

Free UK Mainland delivery on all orders over £50.00.

Orders under £50.00 will be charged at a flat rate of £3.98.

International Shipping

International deliveries are charged a variable rate depending on destination, order weight and courier service used.

Shipping times for international deliveries also varies depending on destination country and courier service used.

Please check your cart before checkout to see availability and pricing.

View our Delivery Information page for more details.



There are no reviews yet.

Be the first to review “Xtremis Cartel El Jefe Stim Pre-Workout”

Your email address will not be published. Required fields are marked *