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Pre Workout PRO ST

A pre-workout formula developed to support training performance, with efficacy assessed in a dedicated study published in Nutrients. Informed Sport certified.

A pre-workout formula developed to support training performance, with efficacy assessed in a dedicated study published in Nutrients. Informed Sport certified.

Format
€2,29
€2,29 €2,50

If you buy this product, you will earn 2 Crown points

Phases Daily health Boosters
Sports Sports Cycling Trail Running Triathlon Running Gym Crossfit
Format Format: 15 g Sachet, 300 g Tub / 20 Servings, 300 g Tub / 20 Servings + Shaker - Flavor: Blue Storm, Citric
Ingredients Flavor Citric: Glucose polymers, leucine, lysine HCl, citrulline malate, arginine base, betaine HCl, isoleucine, valine, N-acetyl-L-carnitine HCl, threonine, phenylalanine, acidulant: citric acid; taurine, tyrosine.
Informed Sport - 25 certified doping-free products 15 JCR studies - peer-reviewed science Free shipping +25 EUR - 48h in mainland Spain 30-day no-questions returns
Description

Pre-Workout PRO ST Pre-Workout PRO ST is a high-quality concentrated pre-workout powder with a perfectly balanced composition, scientifically proven by the University of Greenwich, that provides all the nutrients needed to enhance both strength and endurance training and competition.

  • Extra essential amino acids
  • With caffeine and nitric oxide precursors
  • Low in carbohydrates and no added sugars
  • Scientifically proven efficacy through our own study
  • Flavors: Citrus and Blue Storm
How to use

How to use depending on the body weight of the person:

  • People up to 80 kg: mix 15 g (3 level scoops, equivalent to one dose) in 250 ml of water and drink it approx. 45 to 30 minutes before training.
  • People between 80 and 100 Kg: mix about 22.5 g (4.5 scoops, equivalent to 1.5 shots) in 300 ml of water and drink it approx. 45 to 30 minutes before training.
  • People over 100 kg: mix about 30g (6 level scoops, equivalent to 2 doses) in 400 ml of water and drink it approx. 45 to 30 minutes before training.
Ingredients
  • Flavor Citric: Glucose polymers, leucine, lysine HCl, citrulline malate, arginine base, betaine HCl, isoleucine, valine, N-acetyl-L-carnitine HCl, threonine, phenylalanine, acidulant: citric acid; taurine, tyrosine, methionine, anhydrous caffeine, flavorings, yerba mate dry extract (Ilex paraguariensis A.), tryptophan, sweetener: sucralose; colorant: carotene. May contain traces of soy.
  • Flavor Blue Storm: Glucose polymers, (10%) L-leucine, (9%) L-lysine HCl, L-citrulline malate, L-arginine, betaine HCl, (5%) L-isoleucine, (5%) L-valine, acidulant: citric acid; N-acetyl-L-carnitine HCl, (4%) L-threonine, (3.7%) L-fenilalanine, L-tyrosine, taurine, (2.3%) L-methionine, anti-caking agent: silicon dioxide; aromas, anhydrous caffeine, extract from Yerba mate (Ilex paraguariensis) (2% caffeine), (1%) L-tryptophan, sweetener: sucralose; calcium salt of orthophosphoric, dye: brilliant blue FCF.
Format Format: 300 g tub / 20 servings, 300 g tub / 20 servings + Shaker, 15 g sachet · Flavour: Blue Storm, Citrus
Attributes Informed Sport, Gluten-free, Lactose-free, Vegan
Nutrition facts
NUTRITION INFORMATION: Per 15 g = 1 serving Per 22.5 g = 1.5 servings Per 30 g = 2 servings
Energy 139 kJ / 33 kcal 209 kJ / 49,5 kcal 278 kJ / 66 kcal
Fat 0,0 g 0,0 g 0,0 g
Carbohydrate 2,8 g 4,2 g 5,6 g
of which sugars 0,0 g 0,0 g 0,0 g
Protein 5,0 g 7,5 g 10 g
Salt 0,0 g 0,0 g 0,0 g
COMPOSITION:
Essential amino acids 6.000 mg 9.000 mg 12.000 mg
of which branched-chain (BCAAs) (ratio 2:1:1) 3.000 mg 4.500 mg 6.000 mg
Citrulline 1.250 mg 1.875 mg 2.500 mg
Arginine 1.250 mg 1.875 mg 2.500 mg
Betaine HCl 1.000 mg 1.500 mg 2.000 mg
Acetyl-L-carnitine 680 mg 1.020 mg 1.360 mg
Taurine 500 mg 750 mg 1.000 mg
Tyrosine 500 mg 750 mg 1.000 mg
Total caffeine 203 mg 304,5 mg 406 mg
Yerba Mate (2% en Caffeine) 150 mg 225 mg 300 mg
Technical sheet
Allergen table PDF Citric PDF Blue Storm PDF

About Pre Workout PRO ST

Pre-Workout PRO ST

Informed Sport anti-doping certification

Pre-Workout PRO ST is a high-quality powdered pre-workout supplement with a perfectly balanced composition scientifically proven by the University of Greenwich. It provides all the necessary nutrients to enhance performance in both strength and endurance training and competition.

  • Extra essential amino acids
  • With caffeine and nitric oxide precursors
  • Low in carbohydrates and no added sugars
  • Scientifically proven efficacy through our own study

Essential Amino Acids

Fundamental for optimal muscle function during activity. Pre-workout intake has been shown to delay fatigue and enhance recovery by reducing muscle breakdown. Delivered in an optimal ratio similar to that of muscle mass.

Nitric Oxide Precursors (NO)

The exchange between Citrulline and Arginine in the presence of oxygen releases NO. When it binds to specific receptors, it causes vasodilation, increasing blood and nutrient flow to active muscles and potentially improving performance.

Taurine

Has antioxidant, metabolic, and ergogenic effects. When combined with other ingredients, it improves muscle endurance during exercise and stabilizes cell membranes, facilitating the transport of key minerals.

Tyrosine

Enhances focus and concentration when combined with caffeine—key for maximum performance in training or competition.

Betaine

This glycine derivative enhances performance by boosting creatine resynthesis and increasing NO levels. It also improves total workload to fatigue as well as strength and power output.

Acetyl-L-Carnitine

Crosses the blood-brain barrier and acts on two fronts: improves mitochondrial metabolism by donating acetyl groups (acetyl-CoA) and supports cognitive function by aiding acetylcholine synthesis.

Caffeine and Yerba Mate

Includes pure caffeine and yerba mate extract, the top ingredient for boosting endurance and strength. Stimulates the central nervous system, delays fatigue, optimizes glycogen and fat use, and enhances muscle contraction—especially under fatigue.

Like all Crown Sport Nutrition products, it offers outstanding taste and digestibility.

Scientific study published in Nutrients: The ingredient matrix was tested using 2 servings of Pre-Workout PRO ST (30 g) with approximately 16 g of added carbohydrates. To replicate the study, add 2/3 of a serving of Isodrink & Energy Lemon (about 20 g) to maximize effectiveness.

Format and Flavors

  • Flavors: Citrus and Blue Storm
  • 300 g jar (20 servings of 15 g)

High-performance community

They do not choose us for the marketing.
They choose us for the science

Athletic Club

Athletic Club

Official nutrition supplier · LaLiga

2024 Copa del Rey champions
Oliver Zeidler

Oliver Zeidler

Single sculls · World Rowing

Paris 2024 Olympic champion · Three-time world champion (single sculls, 2019/2022/2023)
David Cantero

David Cantero

Triathlon · World Triathlon Series

5th in the 2025 World Triathlon Series · Silver at the Grand Final (Wollongong)
Claudia Tremps

Claudia Tremps

Trail Running · UTMB

Transgrancanaria champion · Top Spanish finisher at UTMB Mont-Blanc 2025
Andrey Rublev

Andrey Rublev

Tennis · ATP Tour

Tokyo 2020 Olympic champion (mixed doubles) · ATP Top 10
Oriol Cardona

Oriol Cardona

Ski mountaineering (skimo) and Skyrunning

Milano Cortina 2026 Olympic champion (skimo sprint) · Two-time world champion (2023 and 2025)
Fernando Belasteguín

Fernando Belasteguín

Padel · Premier Padel

World No. 1 for 16 consecutive years · Padel legend (230 titles)
Alain Santamaría

Alain Santamaría

Skyrunning / Trail Running

2025 Skyrunner World Series runner-up · 2026 Spanish Vertical Kilometre champion
Marta Sánchez

Marta Sánchez

Long-distance triathlon

IRONMAN Barcelona and South Africa winner
Jasmine Paolini

Jasmine Paolini

Tennis · WTA Tour

Paris 2024 Olympic champion (doubles) · 2024 Roland-Garros and Wimbledon finalist
Naiara Irigoyen

Naiara Irigoyen

Skyrunning / Trail Running

2025 Skyrunner World Series runner-up · 2025 Spanish Vertical Kilometre champion
TeamNL Rowing

TeamNL Rowing

Rowing · World Rowing

3 rowing gold medals at Paris 2024
Tim Hellwig

Tim Hellwig

Triathlon · Elite

Paris 2024 Olympic champion and 2023 world champion (mixed relay)
Adrián Ben

Adrián Ben

Track and field · 800 m

2023 European indoor 800 m champion · Olympic finalist
Sara Sorribes

Sara Sorribes

Tennis · WTA Tour

Paris 2024 Olympic bronze medallist (doubles, with Cristina Bucsa) · 2024 Madrid WTA champion
Enmanuel Reyes Pla

Enmanuel Reyes Pla

Boxing · -92 kg

Paris 2024 Olympic bronze medallist · 2022 world runner-up
Miriam Casillas

Miriam Casillas

Triathlon · Spanish National Team

Olympic triathlete (Tokyo 2020 and Paris 2024)
Daniel Arce

Daniel Arce

Track and field · 3000 m steeplechase

Paris 2024 Olympic finalist (10th)
Guillem Montiel

Guillem Montiel

Middle-distance triathlon

2025 European middle-distance triathlon champion

Verified reviews

What people who already use it say

What people ask us most

Contact Crown ->
01 How should I take Pre Workout PRO ST?
According to body weight: People up to 80 kg: mix 15 g (3 level scoops, equivalent to one serving) in 250 ml of water and drink it approximately 45 to 30 minutes before training. People between 80 and 100 kg: mix approximately 22.5 g (4.5 scoops, equivalent to 1.5 servings) in 300 ml of water and drink it approximately 45 to 30 minutes before training. People over 100 kg: mix approximately 30 g (6 level scoops, equivalent to 2 servings) in 400 ml of water and drink it approximately 45 to 30 minutes before training.
02 What ingredients does it contain?
Citrus flavour: Glucose polymers, leucine, lysine HCl, citrulline malate, arginine base, betaine HCl, isoleucine, valine, N-acetyl-L-carnitine HCl, threonine, phenylalanine, acidifier: citric acid; tyrosine.
03 Which sporting goals is it suited to?
It is especially suited to cycling, trail running, triathlon, running, gym training and CrossFit, according to the product classification and its current categories.
04 What format or variants are available?
Format: 300 g tub / 20 servings, 300 g tub / 20 servings + Shaker, 15 g sachet · Flavour: Blue Storm, Citrus
05 Is it suitable for athletes who compete?
This product is associated with Informed Sport certification in the available catalogue information.
01
How should I take Pre Workout PRO ST?
According to body weight: People up to 80 kg: mix 15 g (3 level scoops, equivalent to one serving) in 250 ml of water and drink it approximately 45 to 30 minutes before training. People between 80 and 100 kg: mix approximately 22.5 g (4.5 scoops, equivalent to 1.5 servings) in 300 ml of water and drink it approximately 45 to 30 minutes before training. People over 100 kg: mix approximately 30 g (6 level scoops, equivalent to 2 servings) in 400 ml of water and drink it approximately 45 to 30 minutes before training.
02
What ingredients does it contain?
Citrus flavour: Glucose polymers, leucine, lysine HCl, citrulline malate, arginine base, betaine HCl, isoleucine, valine, N-acetyl-L-carnitine HCl, threonine, phenylalanine, acidifier: citric acid; tyrosine.
03
Which sporting goals is it suited to?
It is especially suited to cycling, trail running, triathlon, running, gym training and CrossFit, according to the product classification and its current categories.
04
What format or variants are available?
Format: 300 g tub / 20 servings, 300 g tub / 20 servings + Shaker, 15 g sachet · Flavour: Blue Storm, Citrus
05
Is it suitable for athletes who compete?
This product is associated with Informed Sport certification in the available catalogue information.

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