4 Gauge Review

Our Rating

4-Gauge pre-workout

Roar Ambition have added another quality product to their line-up – a pre workout supplement, 4 Gauge, this is our extensive review. It claims to be the most explosive and safe pre workout supplement on the market. Let’s find if it lives up to the claims.

If you’re looking for a boost in energy and strength during your workout, then 4 Gauge could be the supplement for you. With it’s unique packaging and completely natural formula, it certainly stands out from the crowd.

The 4 Gauge website claims to give you:

  • Great Muscle Pumps – the vasodilators improve blood circulation, helping you achieve your goals in the gym.
  • Strength Boost – you’ll really squeeze out those extra few reps at the end of your set.
  • Enhanced Cognitive Function – you’ll be able to concentrate solely on your workout, wasting less time and spending more working hard.
  • More Energy – the caffeine really helps to give you a boost, helping you when you’re tired and unmotivated to train.
  • No Side Effects or Energy Crashes – 100% natural ingredients, without any artificial sweeteners, ensures no harmful chemicals in your body.

These benefits are delivered due to the nutrients in this product:

  • Dilates blood vessels – you’ll feel the intense muscle pumps from the increase in nitric oxide levels thanks to the L-Citrulline and Beetroot Extract. You’ll feel amazing and work even harder in the gym.
  • Reduces effects of physical exhaustion – there’s nothing worse than being fatigued after a workout. You’ll find yourself recovering faster than ever when using this pre-workout, due to the Creatine and Rhodiola Rosea.
  • Delivers sharp mental focus – the Caffeine and Acetyl L-Carnitine will help you to stop looking at your phone and start your next set quicker than before. This means you’ll save time and energy during your workout.

The Company

Roar Ambition is a premium supplements company that prides itself on their 100% natural products, ranging from fat burners to testosterone boosters. Their products are used by top athletes around the world – from UFC fighters, like Diego Sanchez to bodybuilding legends, such as Robby Robinson.

Another thing we like about Roar Ambition is that all of their products are made in GMP certified and FDA approved facilities – this means their supplements are produced under strict guidelines and will be of the highest quality. 

The Ingredients and How They Work

It’s advised that you take 4 Gauge 20-30 minutes before your workout. For the best results, you should mix 2 scoops of the product in 300-350 ml of water, juice or drink of your choice.

Let’s take a close look at the ingredients to see exactly how they work:

L-Citrulline DI-Malate

This is an amino acid that turns into L-arginine in your kidneys. Why’s that good? Well, L-arginine helps blood circulation and increases your nitric oxide levels, meaning it helps you get intense muscle pumps during your workouts.

However L-arginine has a poor absorption rate when orally supplemented – L-Citrulline has a better absorption rate and has been proven to increase nitric oxide levels in your body, so it’s better to have this nutrient in a pre-workout.

4 Gauge even has the optimum amount of L-Citrulline at 6,000mg, so you’ll be sure to experience intense muscle pumps while lifting weights.

Creatine Monohydrate 

Creatine is one of the most well-known supplements on the market and has been used for years. It’s been proven to boost your strength and endurance in the gym, helping you push out those last few reps and make more muscle gains.

Acetyl L-Carnitine 

Studies have shown that this nutrient increases your alertness, helping you to focus on getting results during your workout. If you’re prone to check social media during your workouts, this will keep you concentrated on achieving your goals in the gym.

But that’s not the only benefit. Increased focus will enhance your mind-muscle-connection while you lift weights – so you make the most of every rep and make better progress.

You can’t argue with it – Acetyl L-Carnitine’s tried and tested to deliver results.

Red Beetroot Extract

Also known as Beta Vulgaris, it has a high nitrate content – your body converts nitrate into nitric oxide, which dilates your blood vessels and gives you an awesome muscle pump. Ultimately, this will give you an awesome feeling in the gym, pushing you to work even harder and lift more weights.

Studies have also shown that Beetroot can give you an increase in aerobic performance, and with 300mg included, you’ll experience great benefits.

Here’s another benefit – consuming Beetroot also leads to lower blood pressure, which is great (admittedly, it’s not key to a pre-workout) – the point is, there are no negatives to this ingredient.

Coconut Water Powder 

Coconut water is a great source of potassium to improve your health. But more importantly in a pre-workout, it contains electrolytes, which help to keep you hydrated during an intense training session.

This is a great ingredient that isn’t seen in many other products in the market. Small differences like this, really help 4 Gauge stand out.

L-Theanine & Caffeine

L-Theanine is a neurotransmitter that helps reduce stress levels and improve focus. However, its main benefit is seen when paired with Caffeine.

L-Theanine works synergistically with Caffeine, forming a ‘smart-caffeine’ that gives you the stimulating effects of Caffeine without any jitters. This combo also prolongs the effects of Caffeine and reduces the ‘crash’ at the end, leaving you fully energized throughout your workout.

This eliminates concerns about having a ‘crash’ and going home early.

Rhodiola Rosea

This is a herb that’s been proven to significantly reduce physical exhaustion leading to fatigue. This means that you’ll always be fresh and ready for your training session.

Rhodiola Rosea also enhances your cognitive function – as well as helping you to concentrate and focus on your workout, this ingredient also improves your mood and is effective in reducing your stress levels. This will ensure you’re always equipped with the right mindset to realize your goals.

It’s effective at doses of 50mg, so the 100mg in 4 Gauge will be more than enough to help you get results.

You can read more on the website www.4gauge.com/ingredients

Side Effects

Unless you’re allergic to any of the ingredients in 4 Gauge, you shouldn’t experience any unwanted side-effects, thanks to the safe and natural formula.

The only concern you may have is if you are sensitive to caffeine – between 300-400mg is considered safe to consume, and 4 Gauge 150mg in, so you can even have your tea/coffee in the morning.

However, as with any product containing caffeine, you shouldn’t take 4 Gauge after 5-6pm just in case it interrupts your sleep.

Pro’s and Con’s


  • Improves performance by boosting energy levels
  • 100% natural ingredients in this product
  • No side effects
  • No artificial sweeteners
  • No energy crashes
  • Contains ‘smart-caffeine’ combo (Caffeine & L-Theanine)
  • Contains useful ingredients not usually seen in most products, like Coconut Water Extract and Beetroot Extract.
  • Low calorie (5 kcal per serving)
  • Tastes great
  • Made in USA, cGMP and FDA approved facilities


  • You can only buy this product straight from the manufacturer
  • Premium priced
  • Only available in one flavor

4 Gauge Review Conclusion

This is the best pre-workout we’ve seen on the market. It’s safe for most people to use, depending on allergies or sensitivities, and has been shown to deliver results.

The nutrient profile is perfect, providing you with everything that you need (and more) in a pre-workout. With other products, you’ll see that the high caffeine content inhibits you from increasing the serving size.

The ingredients are proven to increase energy levels which helps to perform better in the gym. Helping you to reach your goals faster.

We recommend it as our best pre-workout – you’ll be sure to experience intense muscle pumps, increased focus and energy in the gym when using it.

For more info and to buy visit www.4Gauge.com

Our personal review and results

Strength 4/5

4 Gauge makes you feel unstoppable and I noticed the effects from the first use. It helped me break a couple of PB’s in the gym thanks to the boost in strength I felt.

If you’re looking for a natural product to help you to reach your goals, I can’t recommend this pre-workout enough.

Energy 5/5

After you take a serving of 4 Gauge, you notice the huge increase in energy – you’ll want to hit the gym and smash your workout within 5 minutes of consuming it.

It’s great to motivate you on days when you’re feeling too tired to travel to the gym, meaning you’ll always be making strides towards your fitness goal.

Muscle Pump 4/5

When you’re lifting weights, you can’t ignore the intense muscle pumps from using this product. You feel great and it helps you to get those last 2-3 reps out when you usually would have failed.

Again, this helps towards making muscle and strength gains in the gym.

Focus 5/5

Thanks to the L-Theanine and Caffeine working synergistically to form a ‘smart caffeine’, you’re completely in the zone, ready to smash your workout.

I usually took a long time resting in between sets, being distracted by my mobile phone, but 4 Gauge has really helped me focus on my training sessions, improving my lifts.

The Rhodiola Rosea in 4 Gauge has helped elevate my mood and reduce stress levels. This has meant that i’m happier than before, making better progress in the gym as a result.

My Results 4.5/5

While using 4 Gauge, I felt a boost to my mood, strength, energy and muscle pumps in the gym. I even made more muscle gains – this was mainly down to training more due to the energy boost provided by this pre-workout, allowing me to train when I would’ve been too tired otherwise.

I highly recommend this product. It’s unique in the market place.