9 Strongest Pre Workout Supplements in 2023 (High-Stim Picks)

Each serving of this pre workout is 21.1-21.2 g, includes 275 mg of caffeine Anhydrous and 30mg of Infinergy or dicaffeine malate. 

The extreme pre workout comes in four different flavors. You can get it in cherry kiwi, blue raspberry, peach mango, and sour gummy. The flavor comes from natural extracts of fruits and edibles.

This pre workout consists of 12 active ingredients.In addition to 275 mg of caffeine, each serve of this product includes 8g citrulline, 4g beta-Alanine, 2.5 g of betaine, 1.3g Taurine, and 1g L-Tyrosine, amongst other ingredients. The supplement also contains sodium, potassium, and boron, along with vitamins B6, B12, and a high dose of Vitamin D.

Although, if you are taking Vitamin D supplement, you might want to recalculate your intake. The Tolerable Upper Intake for this vitamin is 100mcg and a serving of this supplement has around 75 mcg. Therefore, if you take this product, you definitely do not need to take additional vitamin D as a separate supplement.

Black Bulk pre workout is a high-end supplement with a rich blend of several components, making it a well-balanced supplement. It comes in four flavors and does not use artificial preservatives or coloring (if it means a lot to you). Plus, each of its containers has 30 servings. All of these make it a great product, well worth your investment.

The highest caffeine pre workouts in the pre-Kaged series consist of around 388 mg of caffeine per scoop of 35.3 g. The caffeine is obtained from organic green coffee beans.

The simple-to-use supplement is available in three distinct flavors. It's available in strawberry lemonade, glacier grape, and fruit punch. The list of flavors further increases for low-stimulation and caffeine-free versions of Pre-kaged Elite.

It has L-Citrulline and beta-Alanine for pump, Creatine and betaine for power, and L-Tyrosine, which in combination with caffeine is potentially capable of enhancing its (caffeine) effect. It also consists of 2g of Taurine, which has been shown to improve muscular endurance during resistance exercise in some studies.

Each Container of this all-in-one supplement comes with 20 scoops making it very budget-friendly. Paired with all the compounds and all-rounder effects of the pre-workout, it's a great investment, especially for athletes with excellent caffeine metabolism.

The basic caffeine version of the Pulse consists of caffeine anhydrous as the main stimulant. Each serving of two scoops or 22-24g consists of 350mg of caffeine.

The supplement is available in 18 different flavors, including interesting ones like mojito, sour candy, watermelon, and more. There's also a smaller 10-serving fruit punch pack. 

This pre workout comes in different variants that may affect the overall composition. However, you can expect a caffeine value of 350mg in its craziest pre workout variants. It will also have 2.5g Betaine, 3.6g Beta-Alanine, and 8g Citrulline Malate. 

Legion Pulse Pre-workout is a great product in terms of value of money. The per serving price is slightly higher than most brands in the same league, but it's worth it. Plus, you get a money-back guarantee with each product. Moreover, it comes in a smaller 10-serve pack for beginners or first-timers (however, be aware that this much caffeine may be too much if you've never taken this supplement before). 

Each serving of this supplement weighs 25g and consists of around 200mg of caffeine. The amount is good enough for most people and can be adapted for a caffeine-sensitive stomach. 

The supplement focuses more on nutrients and quality than taste. So most of the time, you will find it in just fruit punch flavor. However, there are two non-standard flavors that you can get. First is the green apple, which is available in its non-caffeine version, and the other is blue raspberry which needs a pre-order.

The overall caffeine value of supplements will change according to the variant you buy, but the other nutrients remain consistent. According to its label, the supplement offers water soluble vitamins (C and group B), iron, Beta Alanine, Betaine, Taurine and several more ingredients.

The Crazynutrition intensive pre-train contains more nutrients and better ingredients than many other pre-workouts. It offers you multiple flavor options. Plus, it's usually for gym tracks, outdoors, and every other kind of resistance training or heavy workout. And all of this at a price much lower compared to many popular pre workouts. Thus, it's a great option for both amateurs and athletes.

As already stated, this product is one of the highest caffeine pre workouts that you can get. It has around 400mg of caffeine extracted from different sources, including tea leaves, Yerba, coffee beans, and more. The stimulation is good but may be side effective. This high dose of caffeine can lead to headache, insomnia, nervousness, irritability, fast heartbeat, muscle tremors and more.

While stimulants are the main features of this product, it doesn't lack flavor options. The powder is available in 6 different tastes. It includes blue ice, green apple, pink lemonade, rocket pop, tropical rage, and wildberry.

This high stimulant has multiple ingredients, and you can get the full detail about them on the back label. The label also divides the compounds into categories, so you know the exact purpose of them all.

The Rich Piana 5% Nutrition 5150 high stim pre workout is on par with top products and even exceeds most in terms of stimulation effect. It also includes ingredients to strengthen your nervous system and brain for better performance. However, it doesn't have optimal Citrulline per serving, which can reduce the vasodilating effect and reduce the overall muscle pump.

This ProSupps is another product with a very high dose of caffeine in our list. Each serving of this supplement consists of 300mg of Caffeine Anhydrous, 70mg of Dicaffeine Malate, and around 50mg of caffeine citric acid blend. It makes a total of 378mg of caffeine per 7.5g of the powder. However, considering the safety limit for caffeine is 400mg per day, this pre-workout may not be the best option, especially for beginners and athletes of intermediate level. It may leave you with several side effects. So you need to be very careful with this product.

The taste options of this particular powder are interesting. It offers unique flavors like cotton candy, cherry popsicle, pixie dust, blue razz blitz, and sucker punch, along with the common watermelon rush and sour green apple flavor.

The product targets three aspects of your workout strength, intensity, and alertness. It contains three different types of compounds. It combines caffeine Anhydrous, dicaffeine malate and caffeine citric acid blend for high stimulation. Then there are the compounds like beta alanine, citrulline and more to provide both the energy and the pump you need. However, some of these ingredients have a low dose.

The per-serve price of this product is very low compared to others. The price per serve is a little more than one dollar, making it a great option for a low-budget buy. And on the plus side, you get a 30 days satisfaction guarantee with each Container.

This dietary supplement targets both mental and physical strength. Every serving of the supplement provides you with around 250mg of caffeine to stimulate both. The supplement also has Beta-alanine that helps to increase muscular endurance and get a better pump.

This particular dietary supplement comes in 30 to 60 scoop options based on the flavor you pick. Beyond raw offers you 9 flavors including common flavors like (Fruit punch, Gummy worm, Icy fireworks, Strawberry lemonade, and Orange mango, as well as exotic flavors like Jolly Rancher green apple, Jolly Rancher watermelon, Jolly Rancher blue raspberry, and Jolly Rancher grape.

The pre workout offers mental intensity/Energy ingredients and pump-inducing ingredients. It has a well-explained label with details of all the ingredients in the powder. Plus, it has a list of all the ingredients along with their quantity.

While this supplement is not the best in the market, it's highly credible. Its parent company has been in the market for decades and has multiple approvals for its product. Plus, the pre-workout contains a well-balanced caffeine content. It will offer you stimulation you need, reducing the risk of overdosing with side effects.

The powder uses a combination of several compounds for stimulation. Each of its servings consists of 370g caffeine. It also contains 30 mg of Encapsulated slow-releasing caffeine. So the total amount of caffeine is 400 mg per serving.

This supplement comes in an interesting SunnyD flavor option. It offers you a slightly orange tangy taste that comes from a blend of both artificial and natural ingredients.

The main product website specifies the caffeine value to be 400mg. According to its nutrition label it has 370 mg of Caffeine Anhydrous with 30 mg of sustained-release caffeine. It also has 90 mg Vitamin C, Phosphorus, sodium and Potassium.

Ryse Project blackout is a balanced type supplement that consists of almost every major ingredient you expect from a pre workout: caffeine, beta-alanine and betaine. However, this product does not contain citrulline.

Woke Bucked Up is yet another high-stimulant supplement. Every 12.2-12.4g serving of this supplement contains 333 mg of caffeine, almost the same as 3-4 cups of coffee. 

This classic Woke has 4 flavor options. It offers you flavors like Grape, Strawberry Kiwi and also Blue Raz and Red Raz.

The nutrition label on the powder specifies the quantity of each ingredient. In addition to caffeine, this product contains beta-alanine, as well as the right dose of citrulline.

With a caffeine value of 333 mg per serving and ingredients like beta-alanine and citrulline, Woke is a considerably good choice. However, its per-serve cost is higher than some of the products from the top of this list.

Any strong pre workout supplement works on two main factors: muscular endurance and power output. Some studies have also shown that this type of supplement can improve focus.

Formulations include several key ingredients and few additional ingredients to achieve these goals. The ingredients include:

Caffeine: it is the key component of any good pre-workout supplement. In moderate doses (3-6 mg/kg of body weight), caffeine activates the central nervous system, improves concentration, increases the force of muscle contraction and reduces the feeling of fatigue. It has been shown to benefit athletic performance for short-term high intensity exercise and endurance-based activity, and also reduces perception of exertion during exercise. It's the key component that decides the stimulation power of your pre-workout.

Creatine: chemically derived from amino acids glycine, arginine and methionine, this compound is responsible for energizing your muscles and increasing energy production. Creatine can increase maximal strength, high-intensity exercise performance and lifting volume. Creatine monohydrate is the most effective ergogenic nutritional supplement currently available to athletes in terms of increasing high-intensity exercise capacity and lean body mass during training.

Beta-alanine: necessary for the synthesis of carnosine in muscles. This dipeptide functions as an intracellular chemical buffer. It slows down the development of fatigue and increases training capacity, helping you complete a few more reps in the mid- and high-range.

Nitric Oxid boosters: Athletes also prefer Nitric oxide precursors in their pre workout. We are primarily talking about citrulline. Supplementation with this non-essential amino acid has been shown to increase vasodilation and improve exercise performance when consumed in doses of 6-8 g per day. That’s why almost every strong pre workout supplement includes Citrulline (often combined with malate).

Other Amino Acids: The pre workout supplement can also have a decent amount of additional amino acids or their derivatives with potential effects.

Betaine is a naturally-occurring derivative of the amino acid glycine which may improve exercise performance by increasing rates of creatine synthesis and elevating levels of blood nitric oxide.

Tyrosine may enhance the stimulating effect of caffeine.

Taurine is an amino-containing sulfonic acid that has been reported to have ergogenic effects. Ingestion of 1.5 g taurine as part of strong pre workout has been shown to improve muscular endurance during resistance exercise.

Apart from these components, the pre-workout supplement can also include nutrients like Zinc, Vitamins, minerals and more.

When taken for a period of four to eight weeks, multi-ingredient pre-workout supplements have been shown to increase measures of strength, power output and lean muscle mass. They also give us those highly desired pumping effect. 

It consists of key stimulation compound caffeine that has been shown to improve cognition as well as performance during endurance, power, and resistance exercise when consumed in dosages between 3 and 6 mg/kg bodyweight. Moreover, caffeine in the best high stim pre workout supplements can also increase lipolysis – the breakdown of fat stored in fat cells.

Pre-workout formulations that contain approximately 300 mg caffeine per serving will fall within the acceptable dosing range for most individuals. Lower caffeine doses (up to 3mg/kg body weight, ~200 mg) taken before prolonged exercise can be enough to increase athletic performance. This offers athletes the opportunity to consume caffeine for performance benefits at doses that are less likely to cause side effects. 

Minimal effective doses of caffeine may be as low as 2 mg/kg body mass. Therefore, if you are new to training or have never taken pre-workouts before, it is better to start with a smaller dose of caffeine, for example, 200 mg.

The other key evidence-based components: creatine monohydrate and beta-alanine increasing maximal strength, our ability to increase training volume and fatigue resistance.

Additional ingredients, like amino acids or their derivatives, are also able to slightly improve exercise performance and enhance the pumping effect, if they are contained in the right dosage.