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Most Powerful Pre-Workout

We’ve all been there – it’s time to hit the gym and you’re just not “feeling it”, but you drag yourself along anyway, train as best you can, and leave the gym frustrated with your flat workout. 

What if I told you that pre-workout supplements are proven to increase muscular endurance and mental drive, resulting in enhanced training adaptations over time? [1

That’s right, with a powerful pre-workout, you can beat lethargy and smash through plateaus, reaching new personal best lifts and building more muscle. 

No matter how hard you try, you won’t always feel like working out. If you’re the type of person who gets to the gym feeling fatigued, lethargic, and unmotivated, drinking a pre-workout that packs a punch will keep you on track. Here’s a selection of the most potent pre-workouts available in the UK.

  1. Crazy Nutrition Intense Pre-Train
  2. Black Wolf Pre Workout
  3. Testo Prime Instant Energy
  4. Warrior Rage
  5. Optimum Nutrition Pre Workout Advanced

1. Intense Pre-Train by Crazy Nutrition

Crazy Nutrition Intense Pre Train

It’s no surprise that Intense Pre-Train is recommended by the likes of Mens’ Fitness and Muscle & Fitness as one of the best pre-workout supplements of 2023. After our own testing of the most popular and powerful pre-workouts, we’ve ranked Crazy Nutritions Intense Pre-Train on the top spot – here’s why…

Intense Pre-Train contains a blend of 19 all-natural nutrients specially formulated to fight fatigue by dramatically boosting energy, focus, and concentration. The key ingredients that separate this supplement from the competition are KSM-66®, En-Xtra®, and Bioperine®, combined with a synergistic stack of micronutrients. 

What does Intense Pre-Train Contain?

KSM-66 

  • This adaptogen enhances cognition and reduces stress, allowing you to focus on the mind-muscle connection and push out reps with maximum intensity. [2]
  • Contains the world’s purest form of Ashwagandha (Withania somnifera Dunal) at 300mg. 

En-Xtra 

  • Found in many nootropics, it amplifies the stimulating effects of caffeine and acts as a CNS (central nervous system) stimulant, boosting mental alertness while also reducing post-caffeine crashes. 
  • 100mg of En-Xtra is made from Alpinia galanga – a plant which is a tropical evergreen perennial with a thick rhizome and full of antioxidants.

Bioperine 

  • 5mg of Bioperine, a patented extract obtained from black pepper, (Piper nigrum) is standardized for 95% Piperine and works as a bioavailability and nutrient absorption enhancer.
  • Bioperine acts as a bioenhancer, making the entire supplement more powerful by boosting the absorption of the entire ingredient list of vitamins, minerals, and compounds to power up your workout.

Further, Crazy Intense Pre-Train contains a cocktail of caffeine, vitamins, minerals, and amino acids, all scientifically formulated to make a pre-workout drink that can dramatically improve workout intensity and drive. 

And when you’re able to train with laser focus and relentless energy, the only result is increased gains in muscle strength and size. 

  • 7g of Citrulline Malate – boost nitric oxide 
  • 2.5g of Beta-Alanine – increases high-intensity exercise endurance
  • 1.8g of Betaine Anhydrous – produces carnitine, crucial for energy production
  • 1g of Glycerol Monostearate – improves aerobic and anaerobic performance
  • 1g of L-Arginine AKG 2:1 – reduce muscle fatigue and boost blood flow
  • 1g of L-Tyrosine – neurotransmitter enhancer
  • 200mg of caffeine from Anhydrous – increases alertness and concentration

It also contain the following:

  • Taurine – 1 g
  • Glucuronolactone – 400 mg
  • L-Phenylalanine-  400 mg
  • Vitamin C – 80 mg
  • Niacin – 8 mg
  • Pantothenic Acid – 3 mg
  • Iron – 2.8 mg
  • Vitamin B6 – 0.7 mg
  • Riboflavin – 0.7 mg
  • Vitamin B1 – 0.55 mg
  • Folic Acid – 100 mcg
  • Biotin 25 – mcg
  • Vitamin B12 – 1.25 mcg

Ready to take your next gym training session to the next level? – Try Crazy Pre-Train with 30% off.

2. Black Wolf Pre Workout

Blackwolf pre workout tub

Black Wolf Pre-Workout is chosen by accomplished athletes like Professional Boxer, Ekow Essuman, and Olympic Swimmer, Ekaterina Avramova. Not simply because of Black Wolf’s three delicious flavours, but because it’s blended with 11 key ingredients backed by over 20 clinical studies proving this formula’s effectiveness at enhancing focus, vitality, and stamina. 

What’s inside Black Wolf Pre-Workout?

BlackWolf Supplement facts
  • 6000mg of L-Citrulline Malate
  • 3200mg of Beta-Alanine
  • 3000mg of Creatine Monohydrate
  • 2000mg of Betaine Anhydrous
  • 1000mg of L-Arginine Alpha-Ketoglutarate (AAKG)
  • 1000mg of Taurine 1000mg
  • 600mg of L-Tyrosine 600mg
  • 200mg of Caffeine Anhydrous 200mg (*Blue Raspberry and Green Appleflavours. Fruit Punch is Caffeine free)
  • 150mg of DMAE 150mg and 10mg of Huperzine (*in Fruit Punch, only)
  • 125mg of Dynamine
  • 300mg of Powdered Coconut Water
  • 5mg of BioPerine

You don’t need to stack Black Wolf with a creatine monohydrate supplement before a workout, as it includes an ideal dose of 3g per serving. 

Some other notable ingredients are Beta-alanine and betaine anhydrous, a body-produced non-essential amino acid that is responsible for making carnosine, a chemical that aids high-intensity muscular endurance. You’ll also notice arginine-alpha-ketoglutarate which can boost nitric oxide synthesis, leading to vascularity and the much-desired muscle pump.

There’s also a caffeine-free version because the Black Wolf team understands that coffee doesn’t agree with everyone. In fact, I’d rate this as the most powerful caffeine-free pre-workout available, because they’ve used DMAE and Huperzine as a replacement. 

Elite athletes use and rely on Blackwolf because it works, providing the body and brain with an intelligent profile of nutrients and components to function at their best.

Built with clinically effective doses of substances with solid scientific support. That means you’re taking a pre-workout supplement with the ideal ratio of each component to ensure your highest level of athletic performance in the gym.

3. Testo Prime Instant Energy

TestoPrime Instant Energy

From Wolfson Brands, the makers of TestoPrime – arguably one of the most potent testosterone boosters you can buy – legally. 

They’ve entered the pre-workout supplement arena with Testo Prime Instant Energy, a tub of pre-workout sachets packet with ingredients to provide an increase in energy levels, boosting mood and mind, giving that “instant energy” feeling before working out. 

Testo Prime Instant Energy isn’t just a pre-workout, you can take a dose in the morning to get you going instead of a coffee, or as a “pick me up” any time during the day. 

It’s used by bodybuilders to push more weight during workouts, runners who need a boost in endurance to run for longer distances, but also your average Joe who works the night shift, students who need to focus on completing that assignment, late night gamers, long-distance drivers – anyone who needs more focus and energy. 

How does Testo Prime Instant Energy Work?

Testo Prime combines a nootropic blend of CAFFEINE ANHYDROUS, L-THEANINE, L-TAURINE, L-TYROSINE, B VITAMIN BLEND, L-CHOLINE BITARTRATE, KSM 66® ASHWAGANDHA EXTRACT, and VITAMIN C to create a sugar and calorie free energy drink with the power to boost mood and energy, without the jitters associated with other pre-workouts.

It’s only available in a refreshing Mango and Orange flavour. Each tub contains 30 sachets of powder to mix with water that will last one month if taken daily. 

Get 20 OFF TestoPrime Instant Energy

4. Warrior RAGE

Warrior Rage pre workout

From the makers of the best-selling Warrior Creatine, the same team brings you Warrior RAGE- a Pre-Training supplement designed with a “Power Matrix” to surge energy levels while controlling cortisol.

And so you never get bored of the taste, it comes in 9 amazing flavours:

  • Blazin’ Blue Razz
  • Blazin’ Berry
  • Lightnin’ Lemonade
  • Savage Strawberry
  • Wicked Watermelon
  • Krazy Cola
  • Energy Burst
  • Charged Cherry
  • Brutal Bubblegum

It’s not a solo pre-workout, it contains instantiated Branch Chain Amino Acids – Leucine, Isoleucine, and Valine – to stave off muscle protein breakdown and boost muscle protein synthesis, greatly aiding in muscle growth. It’s one of the only pre-workouts with additional amino acids to help build muscle, making it a favourite for bodybuilders. 

The stimulating properties come from Arginine AAKG, Citrulline Malate, Taurine, Caffeine, and Vitamin B6, all of which work synergistically to increase a sense of well-being, focus, drive, and energy.

There are also Beta Alanine, Creatine Gluconate, and Sodium Bicarbonate Pump in the mix, which help with increasing muscle contractions and strength. 

All in all, this pre-workout is designed with three goals in mind – to boost energy, increase strength, and built muscle. It does this with the ingredient in the Power Matrix, Endur-Strength Synergistic Complex,  MTOR Activation and Cortisol Control System – a very unique and well-thought-out training supplement. 

5. Optimum Nutrition Gold Standard Pre-workout Advanced

Gold Standard Mighty PRE-WORKOUT Advanced

Optimum Nutrition is a bodybuilding supplement brand that’s been around longer than any other pre-workout on this list. They know what works when it comes to formulating an effective pre-workout powder. 

Gold Standard Pre-Workout contains premium ingredients such as Beta-Alanine CarnoSyn®, L-Citrulline Malate and other ingredients such as Acetyl-L-Carnitine HCI, and of course, caffeine. The caffeine is not synthetic, it’s from natural sources – tea and coffee beans.

Optimum Nutrition is renowned for its use of the most premium ingredient, mixability, and great-tasting flavours. The only thing this supplement is lacking is good creatine, not sure why Optimum Nutrition chose to make this a creative-free pre-Workout. But it works at boosting mental focus and giving you more energy to power through workouts, and that’s all that matters, so it has earned its place as a top 5 pre-workout pick.