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4 Gauge Pre-Workout Review 2023 [Updated]: Is It Scam Or Legit?

Mitchelle Morgan

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Medically reviewed by Dr G. Michael DiLeo, MD

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4 gauge pre workout review




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  • Low in calories
  • Contains no proprietary blends
  • Good to take during grueling workouts
  • Provides explosive power
  • Positive reviews
  • Great tasting pre-workout
  • No artificial sweeteners or preservatives
  • Comes in a cool bottle design
  • Can improve cognitive function

Brand Information

  • Reputable fitness product company
  • Focuses on quality products
  • Guarantees ingredient transparency

Medical Benefits

  • Improves blood flow in the body
  • Muscle gain and muscle growth
  • Stress management
  • Boosts brain health

About The Brand

Roar Ambition has been around for a while and is a sports nutrition company. Its main focus is making products that promote health and fitness. The team behind this brand works in collaboration with manufacturers and nutritionists to create the best supplements.

Among the best products from Roar Ambition is 4 Gauge pre-workout supplement. 4 Gauge focuses on making healthy and beneficial pre-workout supplements to benefit all who partake in this product. Roar Ambition focuses on making pre-workout supplements that support you during training.

What Is 4 Gauge?

4 Gauge pre-workout supplement has a unique formulation focusing on key natural ingredients. Taking the pre-workout ensures you have better support during training sessions at the gym. So, as you partake in intense muscle pumps, you have more energy levels.

The manufacturer claims 4 Gauge Pre-workout makes it possible to keep pushing yourself. You have better mental focus and experience an energy boost during each muscle pump. 4 Gauge can help you look bigger if you enjoy lifting and physical sports.

According to the manufacturer, much research has gone into making the pre-workout supplement to benefit and enhance physical performance. The nutrient profile makes this the strongest pre-workout you can include in your training session.

Feature Product & Coupon

4 gauge pre workout review

Best Reputation

4 Gauge

  • Low in calories
  • Contains no proprietary blends
  • Good to take during grueling workouts
  • Provides explosive power
  • Positive reviews
  • Great tasting pre-workout
  • No artificial sweeteners or preservatives
  • Comes in a cool bottle design
  • Can improve cognitive function

Does 4 Gauge Really Work?

This product does work. When you read 4 Gauge pre-workout reviews, many people have positive things to say. This is largely due to the nature of the product. The pre-workout is made using natural ingredients, and there are no proprietary blends.

Such transparency that even includes the exact amount of each ingredient is crucial. In addition, ingredients such as creatine monohydrate, L-citrulline, caffeine, and acetyl L-carnitine are quite beneficial. They help the body in numerous ways as you work out at the gym.


  • Made using 100% natural ingredients
  • Includes a GMP-certified formula
  • Doesn’t include any proprietary blends
  • No artificial sweeteners or preservatives
  • Comes in a cool bottle design
  • Great tasting pre-workout
  • Safest and strongest pre-workout
  • Provides explosive power


  • Can be expensive to buy a single bottle
  • Small amount of pre-workout supplement per bottle
  • The only place to purchase the product is on the company website.

4 Gauge Ingredients

4 Gauge pre-workout contains many natural and beneficial key ingredients that provide explosive power. These include L-theanine (200 milligrams), L-citrulline DI-malate (6000 millagrams), Rhodiola rosea root powder (100 milligrams), caffeine anhydrous (150 milligrams), coconut water powder (300 milligrams), red beet root extract (300 milligrams), acetyl l-carnitine (500 milligrams), creatine monohydrate (1000 milligrams), calcium (30 milligrams), sodium (20 milligrams), potassium (10 milligrams), and total carbohydrate (4 grams).

4 gauge ingredients

There’s a total of 5 calories per serving of 4 Gauge pre-workout supplements. A full serving comprises 2 scoops (14 g). There are a total of 20 scoops per tin of the product. The key ingredients are as follows:


Caffeine anhydrous is among the key ingredients in the pre-workout supplement. This stimulant is common in this and other supplements. Manufacturers add caffeine anhydrous, specifically, to improve athletic performance[1] by giving you an energy boost.


L-theanine is a beneficial amino acid found as one of the key ingredients in the 4 Gauge pre-workout. The best part is L-theanine is good to take when you need to feel calm[2] and enjoy better performance at the gym. From personal experience, this crucial ingredient even helps lessen jitters.

Creatine Monohydrate

Creatine monohydrate is present in this and other supplements. This is considered an ergogenic supplement that helps improve body composition. It’s also a crucial ingredient when it comes to enhancing performance[3].

L-Citrulline DL Malate

L-citrulline DL malate is what you need when doing intense muscle pumps. One reason for weight lifting is to increase muscle mass. L-citrulline[4] is a key ingredient in resistance training since it contributes to muscle mass growth.

Red Beet

The Red Beet Root Powder Extract contains the beneficial nutrients you need for better health. This extract includes fiber, potassium, iron, and vitamin C.

Other Ingredients

Other 4 Gauge Pre-workout supplement ingredients are silica, natural flavors, monk fruit extract, erythritol, dextrose, and xylitol. It should be noted that erythritol, dextrose, and xylitol also can be made synthetically, so you’ll have to take the company at its word that these come, instead, from their natural sources.

Alternatives To 4 Gauge

Transparent Labs BULK Pre Workout

Transparent Labs

See Transparent Labs Review

  • All-natural sports supplements
  • 100% formula transparency
  • Improves endurance and focus
  • Can be expensive
  • Some people don’t like the taste
Powher Pre-Workout For Women


See Powher Review

  • Ideal pre-workout food supplement
  • Leads to explosive power
  • Has a good taste
  • Contains an artificial sweetener
  • Product has a low amount of L-citrulline
Pre Lab Pro

Pre Lab Pro

See Pre Lab Pro Review

  • Improves muscle growth and muscle gains
  • Improves post-workout recovery
  • Replenishes nutrients in the body
  • Only available for purchase on the company website
  • The product is expensive

Health Benefits Of 4 Gauge

Are there any health benefits of 4 Gauge Pre-workout? Yes, the pre-workout supplement benefits the body in many ways, including

Improved Blood Flow

Blood pressure can affect your performance levels during gym sessions. This is why ingredients such as L-citrulline[5] are beneficial when you want to experience better physical performance. L-citrulline converts to L-arginine, which boosts nitric oxide levels in the body.

Nitric oxide is responsible for dilating blood vessels[6] and improving blood flow. As a result, you have increased pumps, which is great for bodybuilding. Good blood flow is crucial since this is how your muscles get more nutrients and oxygen. Hence, you work with enhanced circulation for the best experience.

Increased Energy Levels

Caffeine anhydrous is a crucial ingredient when you want better performance. Caffeine is a powerful stimulant[7], which when mixed with L-citrulline, makes “smart caffeine.” The body is supposed to benefit from this combination since it allegedly boosts energy levels, although a small 2022 study refutes this, concluding benefits were attributed to caffeine alone.

You need energy during training to enable muscle growth and tissue repair. The more energy you have, the better the chance of doing longer sessions that are productive. Energy is also important for normal body function.

A Boost Muscle Gains And Muscle Growth

Muscle gains and muscle growth are huge motivators to hit the gym and pump iron. The good news is ingredients such as creatine monohydrate are proven to improve body composition[3]. This is possible through muscle saturation, which leads to impressive gains.

Enhanced Transport Of Fatty Acids In The Body

Energy production is important in the body, which is possible thanks to acetyl L-carnitine. This supplement is responsible for transporting fatty acids[8] crucial for energy production. The body needs higher energy levels to keep up with intense muscle pumps and training sessions.

Carnitine is available in different forms. However, the body requires acetyl L-carnitine. This also benefits the brain by improving cognitive function[9] and is a safe therapeutic agent.

Beneficial To Mental Health

It’s important to be in the best frame of mind when working out, especially during intense sessions. One way to improve stress management and overall mental health is by consuming Rhodiola rosea[10]. This is a root that’s popular in Europe and Asia.

A study[11] was done in 2012 that included 101 participants who were exhibiting symptoms of stress. Those who took 400 milligrams of Rhodiola rosea were less stressed after 3 days. They continued to take the supplement for 4 weeks and exhibited fewer stress-related symptoms.

The positive effects are beneficial when you want to continue having the best gym experiences. While most studies discuss oxidative stress and not psychological stress (not the same thing), a 2022 review on using Rhodiola rosea as an anti-stress agent[12] (psychologically) confirmed that it is. This root extract ensures you feel more motivated, are in a better mood, and don’t have to endure fatigue.

Boost Cognitive Ability

4 Gauge pre-workout contains L-theanine and caffeine anhydrous. When these two ingredients come together, they have a nootropic effect on the body. This is what you need to boost your cognitive ability.

Essentially, the two ingredients enable your body to experience better energy levels[13] and improve heart and blood pressure. Usually, caffeine alone can cause a crush which feels awful. But, this is avoidable by adding L-theanine to the mix in the pre-workouts to form smart caffeine.

When you increase energy levels at the gym, you also tend to have less mental fatigue. You can even experience better reaction time during training sessions, thanks to the caffeine.

Potential Side Effects

One point to note is this pre-workout contains 150 milligrams of caffeine anhydrous. People who are accustomed to taking lots of caffeine won’t find this to be an issue. Alternatively, you might experience some side effects if you don’t consume much caffeine. These side effects[14] can include restlessness, dizziness, anxiety, frequent urination, and insomnia.

This is why it’s important to take small amounts first, like a scoop, and gauge how your body responds. If you feel any side effects of caffeine, it’s better to try other supplements with lower amounts of caffeine.

Other ingredients may not have adverse side effects. Still, it’s always good to keep an eye on how you feel when you take 4 Gauge Pre-workout. Some people have sensitivities that might lead to side effects when taking pre-workout products.


The best time to take 4 Gauge pre-workout is 30 minutes before you begin a workout session. You can chat with your personal trainer while waiting for the time to elapse. When you want to do intense training, take it closer to the session, perhaps 20 to 15 minutes before you start.

The recommendation is to take 2-level scoops with water or juice. Mix the powder with your drink of choice and take it immediately. If you find caffeine’s effects too much, you can opt to take only one scoop.

4 Gauge Pre-workout has only one flavor, fruity blast since it contains natural flavors. This flavor makes it more palatable as a pre-workout. The product does have a slightly sour taste, but there’s no aftertaste.

4 Gauge Pre-Workout Review: What Do Real Users Say?

According to 4 Gauge Pre-workout reviews, this is a good product to take before hitting the gym. It’s among the best pre-workout products in the market, thanks to its clean ingredient lists. Folks who’ve used it have nothing but praise for the pre-workout:

I can feel the difference with 4 Gauge compared to previous products. In the short time I’ve been using 4 Gauge I can see the gains in my muscles density and the ability to increase bench weight and reps. My goal is to be bigger and shredded. Including 4 Gauge into me diet and workout regimen will help me achieve that goal.


From personal experience, 4 Gauge pre-workout supplement really does work. I’ve come across numerous poor products ever since I began weight lifting 10 years ago. Most were purporting to be pre-workout supplements, but the ingredients list was horrifying to say the least. But, 4 Gauge was a pleasant surprise. I’ve even recommended it to some friends at the gym who were using other products with no results.


I was fed up wasting my money on pre-workouts that made me feel jittery or itchy. I’d nearly given up on them altogether then I heard about 4 Gauge. What I love about this product is that I get a clean surge of energy with a feeling of improved strength and focus too. I’ve never performed better during my high intensity resistance training. I also now am addicted to the pump feeling it gives me. Most pre-workouts I’ve tried make it so I can’t sleep. But 4 Gauge provides the perfect balance of energy and focus. All this might sound too good to be true…but it’s not.


Final Thought

This product does seem to work and doesn’t contain proprietary pre-workout blends. All the ingredients are listed on the bottle in the exact measures, which is important to many people.

Unfortunately, the product comes in a small bottle and the price is high. So, you must buy more than one to get your money’s worth. Still, this is a safe and easy pre-workout with many health benefits.

The ingredients list makes this a pretty interesting product that improves cognitive ability. You can take the 2 scoops as recommended. But, you can take more or less depending on your needs. Consult a dietitian for expert guidance before taking the supplement.

Frequently Asked Questions

Is 4 Gauge the best pre-workout?

4 Gauge is among the best pre-workouts that you can consume to improve mental performance. It contains key beneficial ingredients that you need for the best workout sessions.

Does 4 Gauge have creatine?

Yes, 4 Gauge pre-workout does contain creatine monohydrate. This important ingredient can help you achieve muscle gain[15] and growth goals.

How many servings are in a 4 Gauge pre-workout?

If you take 2 scoops of pre-workout as recommended, you’ll find a total of 20 servings in the 4 Gauge pre-workout bottle.

Is 4 Gauge pre-workout a low-calorie and low-carb product?

4 Gauge pre-workout is a low-calorie product with only 5 calories per serving. It’s also good for a low-carb diet since the product only contains 4 grams of total carbohydrates.

What good is 4 Gauge?

4 Gauge Pre-workout is good for lowering blood pressure by improving blood flow in the body. The product also boosts mental performance, which is important when you want to achieve your fitness goals. It’s great when you need that extra boost during intense gym sessions.

Can 4 Gauge Pre-workout be used as a fat burner?

If you want to get in shape, you must find a way to lose weight. Unfortunately, 4 Gauge pre-workout isn’t a fat burner. But, it can increase your energy levels, mental performance, and endurance to achieve your fitness goals, all of which contribute to fat loss as a fitness strategy.

How long does 4 Gauge Pre-workout last?

The duration of a pre-workout is important when planning your sessions at the gym. It’s better to take this pre-workout 15 to 45 minutes before you start pumping iron. That means you can enjoy benefits for up to 5 hours, depending on the amount you take.

+ 15 sources

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  8. Inazu M;Matsumiya T (2021). [Physiological functions of carnitine and carnitine transporters in the central nervous system]. Nihon shinkei seishin yakurigaku zasshi = Japanese journal of psychopharmacology, [online] 28(3). Available at: https://pubmed.ncbi.nlm.nih.gov/18646596/
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Mitchelle Morgan

Medically reviewed by:

Michael DiLeo

Mitchelle Morgan is a health and wellness writer with over 10 years of experience. She holds a Master's in Communication. Her mission is to provide readers with information that helps them live a better lifestyle. All her work is backed by scientific evidence to ensure readers get valuable and actionable content.

Medically reviewed by:

Michael DiLeo

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