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The 5 Best Stimulant Free Pre Workout Supplements (2021)

Stimulant Free Pre Workout
Hello! This website participates in affiliate programs (Amazon affiliate program, etc) to fund its existence. Also, I am not a doctor and I do not provide medical advice. I am a professional basketball player, Certified Personal Trainer, and Masters Student in Nutrition Education. Please read my Medical Disclaimer and Review Disclaimer for more information.

Choosing to use stimulant-free pre-workout supplements instead of pre workout supplements that contain caffeine or other stimulants is a great decision for your overall health, but you still want a pre workout that helps you crush your workout, right?

Fortunately, there are multiple stim-free pre workout ingredients that will be a huge boost to you and your workouts, and there are a few non-stim pre workout supplements (some that I’ve already tried) that can give you as much energy as the pre workout supplements you might be used to!

Simply put, the main job of any pre workout supplement is to provide you with energy to have a better workout than you normally would. However, there are a variety of ways that pre workout supplements can provide you energy.

the best caffeine free pre workout supplement

The reason to choose a stimulant free pre workout supplement is simple: although it is safe to consume moderate amounts of caffeine, drinking pre workout products with a large amount of caffeine can have negative effects on your health.

Unlike stim-free pre-workouts, pre workout supplements that contain stimulants will fatigue your adrenal glands and have many harmful side-effects that go along with their ability to help make your workouts more effective.

According to a study which was published in Advances in Integrative Medicine,

“adrenal fatigue is a common stress-related disorder in which the symptoms are strongly influenced by circulating cortisol levels. Although adrenal fatigue has appeared in the medical literature by various names for over 100 years, its prevalence is just now coming to the forefront. Healthcare professionals can make a dramatic difference by monitoring patients’ health to check for signs and symptoms of adrenal fatigue.”

The good news is that there are many other ingredients that can replace caffeine or other common stimulants!

Although many people do not know about the energy-increasing and fatigue-fighting ingredients in stim-free pre workouts, there are many options for caffeine free pre workouts!

What are the Best Stim Free Pre Workout Ingredients?

best stim free pre workout

Caffeine free pre workouts offer energy and focus through a variety of ingredients, such as natural nootropics. Although caffeine is the most well-known nootropic in the world, there are many other common nootropics for energy that are not “stimulants.”

From plant extracts to amino acids, there are many natural sources of energy that stimulant free pre workout supplements use.

As always, it is important to choose the products which work for you.

In my opinion, here are the best stimulant free pre workout ingredients that you should make sure are in the stim-free pre workout supplement you choose:

Citrulline Malate

Citrulline malate is one of the few dietary supplements which has clinical research to verify its benefits. In fact, multiple studies have proven the benefits of citrulline malate for improving workout performance.

According to one study produced in the Journal of Strength and Conditioning,

“We conclude that the use of CM might be useful to increase athletic performance in high-intensity anaerobic exercises with short rest times and to relieve post-exercise muscle soreness. Thus, athletes undergoing intensive preparation involving a high level of training or in competitive events might profit from CM.”

When you use citrulline malate before your workouts, you will notice benefits such as:

  • More Muscle Endurance
  • Less Muscle Soreness Post-Workout
  • Increased Work Capacity
  • A Bigger Muscle “Pump”

I suggest that you look for a stim free pre workout that contains about 3-6 grams of citrulline malate.

Beta Alanine

Another clinically researched ingredient is beta alanine, and this is an even lesser-known pre workout supplement ingredient.

The primary role of beta alanine is to improve your workout capacity. Beta alanine works by creating a buffer that slows down the build-up of lactic acid, helping your muscles perform normally for longer.

According to a study produced in The Official Journal of the American College of Sports Medicine,

“Supplementation with β-alanine has been shown to increase muscle carnosine content and therefore total muscle buffer capacity, with the potential to elicit improvements in physical performance during high-intensity exercise. Studies on β-alanine supplementation and exercise performance have demonstrated improvements in performance during multiple bouts of high-intensity exercise and in single bouts of exercise lasting more than 60 s.”

For beta alanine, the best possible dosage is ~3.2grams per day, taken over the course of small dosages throughout the day. Personally, I have found the best results when I can take 4 doses of 800mg of beta alanine per day.

Beta alanine also works synergistically with creatine monohydrate, one of the other top stim free pre workout ingredients on my list!

Creatine Monohydrate

Of all the caffeine-free pre workout product ingredients, creatine monohydrate is probably the most well-known. Creatine monohydrate is another workout capacity enhancer, and it also plays a tremendous role in helping you build more lean muscle mass.

The main role of creatine monohydrate is to draw more water into your cells, which provides you with greater strength and endurance overall.

If you are only getting your creatine monohydrate in your daily pre workout product, your pre workout should include at least 5 grams of creatine monohydrate.

However, some people prefer to begin with a “loading” phase of up to 25 grams of creatine monohydrate per day for the first week.

According to one study produced in the Journal of the American Dietetic Association,

“One week of creatine supplementation (25 g/day) enhances muscular performance during repeated sets of bench press and jump squat exercise.”

Although there are other forms of creatine, I only use creatine monohydrate because it is well-researched and effective.

BCAAs

BCAAs are vital to your stimulant-free pre workout supplement because they provide your body with easily accessible sustained energy. BCAAs provide quick fuel for your muscles, while also providing a lasting fuel source for your body overall.

Drinking BCAAs before your workout will help improve your muscle recovery time and also help you train more intensely without becoming fatigued.

According to a study published in the Journal of the International Society of Sports Nutrition,

“Research on branched chain amino acids (BCAA) has concluded that supplementation can result in increased protein synthesis and additional lean body mass in multiple populations. BCAA have also been shown to improve muscular strength as well as an increase thigh mass. Muscle damage has been markedly reduced after exercise and BCAA supplementation. Intake of BCAA, and leucine in particular, can create an anabolic environment by reducing protein oxidation and promoting sarcomerogenesis in skeletal muscle. The inclusion of BCAA before or after an exercise session will help the body maintain a positive nitrogen balance and support muscle growth.”

I suggest that you drink between 5 and 10 grams of BCAAs before your workout, so try to find a pre workout product that includes this much!

Related Reading: The Best Supplements for Muscle Gain and Weight Loss

The Best Stimulant Free Pre Workout Supplements of 2021

best non stimulant pre workout

In my opinion, of the stimulant free pre workout products I have tried, Genius Pre by Genius Brand Supplements is the best stim-free pre workout.

1.) Genius Pre

In my opinion, the best non stimulant pre workout is the Genius Brand Genius Pre.

Genius Pre does not contain any artificial flavors or dangerous stimulants, and it is powered by clinically dosed stimulant-free nootropics. Especially as a person living with Tourette Syndrome, having a pre workout that can provide significant amounts of energy without any stimulants is truly incredible.

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Genius Pre Workout Powder – All Natural Nootropic Preworkout & Caffeine Free Nitric Oxide Booster w/Beta Alanine & Alpha GPC | Boost Focus, Energy & NO | Muscle Builder Supplement – Essential Herbs
5,463 Reviews
Genius Pre Workout Powder – All Natural Nootropic Preworkout & Caffeine Free Nitric Oxide Booster w/Beta Alanine & Alpha GPC | Boost Focus, Energy & NO | Muscle Builder Supplement – Essential Herbs
  • SYNERGISTIC MIND TO MUSCLE FORMULA – Unlock strength & power that will take you beyond raw...
  • CAFFEINE FREE & SCIENTIFICALLY SUPERIOR - From a scientific standpoint; This is the absolute best...
  • ULTIMATE NITRIC OXIDE BOOSTING POWERHOUSE – With 6 Grams of l citrulline malate (6x the...
  • NATURALLY SWEETENED WITHOUT THE JUNK – Genius Pre is 100% naturally flavored and sweetened with...

If you want to learn more about this product, check out my Genius Brand Supplements Review!

2.) Legion Pulse

Another one of the best caffeine free pre workout supplements is Legion Pulse. Legion Pulse is a naturally sweetened and naturally flavored non-stimulant pre workout supplement.

The main beneficial ingredients in Legion Pulse are:

  • 8g Citrulline Malate
  • 3.6g Beta-Alanine
  • 2.5g Betaine Anhydrous

Although Legion Pulse does not contain as many beneficial nootropics as The Genius Pre, I still believe it is one of the best stim free pre workouts.

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Legion Pulse, Best Caffeine Free Natural Pre Workout Supplement for Women and Men – Powerful Nitric Oxide Booster, Non Stimulant w/Beta Alanine, Citrulline and Alpha GPC, (Caffeine Free Fruit Punch)
  • 100% ALL NATURAL PRE WORKOUT POWDER. Pulse is a naturally sweetened and flavored pre workout...
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I also suggest you check out the rest of the Legion Athletics supplements because they have a variety of great supplements that do not contain any artificial ingredients.

3.) Type Zero Clean Pre Workout

Type Zero Clean Pre Workout is a great non stimulant pre workout supplement that is marketed as a useful product for men and women who are doing the Ketogenic Diet.

The best non-stimulant pre workout ingredients in Type Zero Clean Pre Workout are:

  • 5g Citrulline Malate
  • 2g Arginine AKG
  • 1.5g Betaine Anhydrous
  • 1g Beetroot Extract
  • 1g GABA
  • 600mg Apple Cider Vinegar
  • 500mg L-Tyrosine
  • 150mg Beta-Alanine

Although this product contains more ingredients, the dosage of beta-alanine is very low and will not provide many beneficial effects. However, the inclusion of beetroot extract is a very nice addition.

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Ultra Clean Stim Free Pump Pre Workout + Nitric Oxide Booster (CherryLimeade) Beetroot, 7G Arginine Citrulline Malate, Betaine, Beta A, ACV+ Sugar/Caffeine Free Natural Non Stim Preworkout Men, Women
755 Reviews
Ultra Clean Stim Free Pump Pre Workout + Nitric Oxide Booster (CherryLimeade) Beetroot, 7G Arginine Citrulline Malate, Betaine, Beta A, ACV+ Sugar/Caffeine Free Natural Non Stim Preworkout Men, Women
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4.) humanN SuperBeets

If you want a simple and healthy non-stimulant pre workout supplement, humanN SuperBeets will be perfect for you. SuperBeets contains only micronized beetroot powder and vitamin C.

Beetroot powder is a great stimulant free pre workout alternative that also supports healthy blood pressure levels, improves energy and stamina, supports healthy circulation, and promotes Nitric Oxide production.

humanN SuperBeets is made from Non-GMO beets, and each serving contains the Nitric Oxide equivalent of three whole beets!

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5.) NutraBio PRE Stim Free 

NutraBio PRE Stim Free contains a ton of ingredients and it is certainly one of the best non-stimulant pre workouts. The main negative about this product is that it contains artificial sweeteners and flavorings, but it does contain many great stim-free pre workout ingredients.

A few of the best ingredients in this supplement are:

  • 3.5g L-Leucine
  • 3.2g Beta Alanine
  • 3g Creatine Monohydrate
  • 2.5g Betaine Anhydrous
  • 6g L-Citrulline
  • 1g Agmatine Sulfate
  • 1.5g L-Tyrosine
  • 2g Taurine

NutraBio PRE Stim Free contains many additional vitamins and minerals as well.

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  • MAXIMIZE PERFORMANCE – NutraBio PRE Extreme combines effective ingredients at therapeutic dosages...
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  • N.O. PUMP MATRIX – PRE Stim Free uses a combination of L-Citrulline, Nitrosigine, and Agmatine for...
  • NO CAFFEINE – Thanks to its strong and well-rounded formulation, PRE Stim-Free can give your...
  • ELECTROLYTE AND HYDRATION OPTIMIZER – The amino acid Taurine is effective at helping your body...

Concluding Thoughts – Should You Use Stim Free Pre Workout Supplements?

As you can see, I am a firm believer in choosing stimulant free pre workout supplements. Non stimulant pre workout supplements offer a variety of benefits and you won’t risk adrenal fatigue.

If you are going to use a pre workout product that does contain a stimulant, I suggest that use a natural option such as RSP Nutrition Vegan AminoLean.

Some people consider pre workout products to be legal alternatives to steroids since they can have such a significant effect on your ability to get more out of your workouts. Although the phrase “legal steroids” might be a bit of a stretch, using the right caffeine free pre workout can make a pretty significant impact on the results you get from your workout sessions!

Pre-workouts need to be seen as a solution for improved overall results over a long period, and that’s the main reason why I believe choosing to use stim-free pre workout supplements is the best choice.

The benefit of using stimulant free pre workout supplements is that they will help improve your body in a variety of ways, not just provide you energy for one specific workout.

If you use a stim-free pre workout like Genius Pre, I am confident you will love the results!

Sale
Genius Pre Workout Powder – All Natural Nootropic Preworkout & Caffeine Free Nitric Oxide Booster w/Beta Alanine & Alpha GPC | Boost Focus, Energy & NO | Muscle Builder Supplement – Essential Herbs
5,463 Reviews
Genius Pre Workout Powder – All Natural Nootropic Preworkout & Caffeine Free Nitric Oxide Booster w/Beta Alanine & Alpha GPC | Boost Focus, Energy & NO | Muscle Builder Supplement – Essential Herbs
  • SYNERGISTIC MIND TO MUSCLE FORMULA – Unlock strength & power that will take you beyond raw...
  • CAFFEINE FREE & SCIENTIFICALLY SUPERIOR - From a scientific standpoint; This is the absolute best...
  • ULTIMATE NITRIC OXIDE BOOSTING POWERHOUSE – With 6 Grams of l citrulline malate (6x the...
  • NATURALLY SWEETENED WITHOUT THE JUNK – Genius Pre is 100% naturally flavored and sweetened with...

Read Next: Coffee vs Pre Workout

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Adam Kemp
Hello! My name is Adam Kemp. I am a professional basketball player and an ISSA Certified Personal Trainer. In 2014 I graduated from Marist College with a B.A. in Communications, and for the last seven years, I have played professional basketball in Europe. I am also an ISSA Certified Personal Trainer, and I am currently completing my Masters of Science in Nutrition Education at American University. The health and fitness tips you can find throughout the articles I have written include information I have learned throughout my basketball career, academic studies, and my own personal research. If you would like to learn more about my life, please take a moment to follow me on Instagram and Twitter.

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