The 5 Best Stim-Free Pre-Workout Supplements In 2020: Our Tested Reviews

Top Rated Stim Free Preworkout Supplements

By Gerhard Hoermann, ISSA-CFT
Updated on: May 3, 2020

Honest Review Guarantee from Fitness Informant:
Our product testing team uses the full 30 day serving amount in container before reviewing. Learn more about our review process here.

Stimulants are overtaking the world! That may sound extreme, but it is close to being true. The amount of caffeinated beverages and pre-workouts in this space have reached an all-time high, with no signs of slowing down.

Stimulant Free pre-workout supplements are on the rise as people recognize our "addiction" to stimulants. Stimulants can be very effective, but the truth is some of us just cannot handle them. They have a adverse affect on our central nervous system that can actually lead to a very scary experience.

Stim-Free pre-workouts feature ingredients that still contribute to your overall performance enhancement, without the use of ingredients like caffeine, Synephrine, Higenamine, Yohimbe, DMHA, Eria Jarensis and many more. 

This is a comprehensive list of high-quality, effective products that you can trust to power you through your next workout.

Which Stim-Free Pre-Workout Supplement is right for you? 

That’s where we come in. Our Best of list includes supplements PERSONALLY tested by Fitness Informant. Many top 10 lists online promote based on commission dollars, we do it based on what works. That’s the truth.

We Remove The BS The Supplement Companies Feed You, And Tell You What They Don’t Want You To Know.

We remove the clutter from the stimulant-free pre-workout supplement category. We provide you with the five best stim-free pre-workout supplements.

The following products on our stimulant free pre-workout rankings list were used by the author of this article.

We used each of these supplements through the duration of a full container. Sample packs were not used in determining the rankings.

Stop relying on faulty information that is influenced by outside writers and money. This stim-free pre-workout list is the real deal. Here at Fitness Informant, we don’t steer you wrong.

Be Informed. Live Fit.


A Comparison of Our Top Rated Stim-Free Pre-Workout Supplements

Here's the top 5 picks for the best Stim-Free Pre-workout supplements that money can buy:

Product Name

Highlights

Rating

#1 Inspired Nutraceuticals FSU 

Inspired Nutraceuticals FSU

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Overall Pump Supplement

Highlights:


  • 3.0g NO3-T Arginine Nitrate
  • 4g L-Citrulline
  • Strong Nootropic Blend

Our #1 Rated

Fitness Informant Logo

9.3 out of 10

in the Pre-Workout Category

#2 Core Nutritionals PUMP

core pump

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Best for Simplicity

Highlights:


  • 2.5g Betaine Nitrate
  • 2g Peak O2
  • No Overlapping Ingredients

Our #2 Rated

Fitness Informant Logo

8.9 out of 10

in the Pre-Workout Category

#3 InnovaPharm NovaPump Neuro

InnovaPharm Nova Pump Neuro

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Best for Focus

Highlights:


  • 8g Citrulline Malate
  • 1g Super Spinach®
  • PecaPump™
  • Strong Nootropic Formula

Our #3 Rated

Fitness Informant Logo

9.2 out of 10

in the Pre-Workout Category

#4 MPA Supps Celluvol

MPA Supps CelluVOL

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Best for Non-Nitrate Formula

Highlights:


  • 5g HydroMax
  • 1.5g Nitrosigine®
  • 600mg Alpha-GPC

Our #4 Rated

Fitness Informant Logo

9.0 out of 10

in the Pre-Workout Category

#5 NutraBio PRE Stim-Free

NutraBio PRE Stim Free

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Best for Performance

Highlights:


  • 13.9 Power, Strength. & Endurance Complex
  • 7.75g Pump 
  • 6g L-Citrulline

Our #5 Rated

Fitness Informant Logo

8.7 out of 10

in the Pre-Workout Category

There are hundreds of different brands and variations of Stim-Free pre-workout supplements out there.

How did these 5 make Fitness Informant's top 5 list? Read on and we'll tell you:


#1 Inspired Nutraceuticals FSU

Inspired Nutraceuticals FSU
  • Rating: 9.3 out of 10
  • Servings: 40/20 servings
  • Best For: Overall Non-Stim Product

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Pros

  • 3.0g NO3-T® Arginine Nitrate
  • 4g L-Citrulline
  • Tyrosine and Lions Mane for Focus
  • Great Taste
  • Electrolytes
  • Creatine Monohydrate and Betaine Anhydrous

Cons

  • No Glycerol Monostearate

FSU ​was one of the most impressive formulas to be released onto the market in 2019. Seriously, the guys at Inspired Nutraceuticals have ben nothing short of impressive when it comes to formulas. FSU is Inspired's pump product, and it is a serious contender. 

It starts us off with 4g of L-Citrulline, followed by 3g of NO3-T® Arginine Nitrate. These two ingredients right here are what really put FSU over the top as far as pumps go. Honestly you really don't need much else to aid for pumps, besides carbohydrates and proper hydration of course. 

FSU also has a blend specifically meant for performance/hydration. This blend provides a blend of Creatine, Betaine, and electrolytes. Creatine and Betaine are proven ingredients which aid in power output, and the added electrolytes also aid in muscle contractions and prevent cramping. 

The last blend in FSU is called the "I'm Seriously So Focused Right Now", and we wouldn't expect anything else from Chris Waldrum (the owner). This is a blend of Tyrosine, Lion Mane, and Neurofactor. These 3 ingredients have solid research supporting them for focus/alertness. Honestly all that's really missing from this is caffeine and it would be a top contender for pre-workout of the year. 

Who Makes It?

Inspired Nutraceuticals is a smaller company focused on product quality and innovation. Unlike the big guys, who focus much of their efforts growing the top and bottom line through clever marketing, IN is putting their resources into R&D to provide quality supplements for the consumer.

What's In It?

One serving (2 scoops) contains:

  • 4g L-Citrulline- clinically dosed Citrulline to help move blood into the muscles
  • 3g NO3-T® Arginine Nitrate - increases nitric oxide in the body - great pumps
  • 200mg Horny Goat Weed - an aphrodisiac that aids in cardiovascular health
  • 3g Creatine Monohydrate - aids strength and power output
  • 2.5g Betaine Anhydrous - good for power output
  • 500mg Potassium Glycerophosphate - electrolytes
  • 500mg Sodium Glycerophosphate - electrolytes 
  • ​​300mg AquaMin® ​- aids in hydration
  • ​​300mg Pink Himalayan Sea Salt - aids in hydration
  • ​​2g L-Tyrosine ​- aids in focus and alertness
  • ​​600mg Lions Mane Mushroom ​- aid in focus
  • 100mg Neurofactor® - aids in focus
Inspired Nutraceuticals FSU label

Bottom Line:

FSU is easily one of the best Pump products on the market. It provides more Arginine Nitrate than any other product in the industry, can aid in focus with it's nootropic blend, and can also be good for hydration and strength. The taste is amazing, the pumps are awesome, and it can simply help you perform!


Read the in-depth full review here.

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#2 Core Nutritionals PUMP

core pump
  • Rating: 8.9 out of 10
  • Servings: 40/20 servings
  • Best For: Simplicity

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Pros

  • 3.2g Beta-Alanine
  • 2g Peak O2
  • 2.5g Betaine Nitrate
  • 6g L-Citrulline
  • 600mg Alpha GPC

Cons

  • PeakO2 can hurt flavor

Core Nutritionals PUMP is a non-stim pre-workout that was released in 2020, as part of Core’s rebrand. It has easily taken over as one of the best products on the market, and we can’t praise it enough. One of the best aspects to the profile is that there are no overlapping/redundant ingredients. 

The profile starts off with 6 grams of Citrulline, and 3.2 grams of Beta-Alanine. Citrulline is great for pumps, as it converts to Arginine, which is a precursor to Nitric Oxide. As for Beta-Alanine, it is used for aiding in endurance. Both are dosed well.

Next up, we have the powerhouse behind this product, which is Betaine Nitrate (NO3-T®). Nitrates are very effective at causing vasodilation, and we get a solid 2.5 grams of Betaine Nitrate in here. This is the ingredient that really puts it over the top for us here on FI.

The next ingredient we have is PeakO2®, which is a blend of mushrooms from Compound Solutions. This is a blend of mushrooms that is used to increase VO2 Max, which can increase endurance. It is a great ingredient with solid research behind it, and at 2 grams, it is dosed well. Following this we have HydroMax®, which is a trademarked form of Glycerol Monostearate. This ingredient can help with cellular hydration, and is great for aiding with pumps. At 2 grams, it is dosed well. 

Finally, we have Alpha GPC, which is a source of Choline. Choline is converted to Acetylcholine in the brain which is a neurotransmitter. This can aid with focus, and the Alpha GPC is dosed well in here. 

Core PUMP is well deserving of being on this list, and we highly suggest grabbing it if you want a consistent non-stim pre-workout.

Who Makes It?

Core Nutritionals has recently gone through a rebrand, and they now look like a sexy brand, something they were kind of lacking beforehand. The brand has consistently come out with solid products, and are now killing it in 2020 with their new product launches. With a team that really cares about efficacious dosing and products that work, Core Nutritionals is a brand for everybody. 

What's In It?

One serving (two-scoops) contains:

  • 6g L-Citrulline - converts to Arginine in the body and may help with pumps
  • 3.2 Beta-Alanine- buffers lactic acid which may aid in endurance
  • 2.5g Betaine Nitrate (NO3-T®) - a source of Nitrates which aids in pumps
  • 2g Peak O2 - increases VO2 max which may aid in endurance
  • 2g HydroMax® - helps with cellular hydration
  • 600mg Alpha GPC - source of Choline that aids in focus
core pump

Bottom Line:

Core Nutritionals PUMP is a great non-swim pre-workout that is easily one of the best on the market. With 6 grams of Citrulline, Betaine Nitrates, and HydroMax®, there is no way you're not going to get a noticeable pump. It is technically a stim-free pre-workout, and the product stacks well with many stem-based pre-workout out there. This is certainly a product worth stocking up on.


Read our full review here.

Use coupon code INFORMANT to save 20%

#3 InnovaPharm NovaPump Neuro

InnovaPharm Nova Pump Neuro
  • Rating: 9​​.2 ​​out of 10
  • Servings: 20​​ servings
  • Best For: Focus

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Pros

  • 8g Citrulline Malate
  • 1g Super Spinach™
  • Taste
  • Strong Nootropic Formula
  • Transparent Label
  • PegaPump

Cons

  • One Serving is 1/2 Scoop

NovaPump Neuro is a pump product that really caught us by surprise. While looking at the profile, we realized that we shouldn't have been.

NovaPump Neuro is a stim-free pre-workout that really has more in mind than just a pump. It's essentially a very powerful pump product with an excellent Nootropic blend. NovaPump Neuro starts us off with 2 familiar ingredients that you expect in most pre-workout/pump products. Citrulline Malate at 8g, and 4g of GlycerSize®. These are both common pump ingredients, and nice to see in here. Not only do we have some basics, we also have some new trademarked ingredients that aren't as popular. Super Spinach™ is red spinach, and it is touted to have 4x the amount of nitrates when compared to beets. Following this we have PegaPump™, which is a vasorelaxant. Overall, this is a solid, and certainly interesting formula.

Of course, any product with "Neuro" in its name has to deliver some sort of focus benefits right? Well, NovaPump Neuro has a solid Nootropic blend, which really helped solidify its spot on our list. This starts us off with 1g of ALCAR, and 1g of Tyrosine. We love Tyrosine here on FI and it is great for focus, while ALCAR is our favorite form of Carnitine, as it is also good for focus. Both are dosed well and great to see in here. Also, we have Alpha GPC at 600mg, and Huperzine A at 300mcg. Alpha GPC is form of choline with a high bioavailability, while Huperzine A prevents Choline from being broken down in the brain. Both are dosed well in here, and we have no complaints. 

Overall, the profile is solid and the taste is good as well. It's a great add-on and has us excited with what InnovaPharm has planned for us in the future.

Who Makes It?

InnovaPharm is a brand that has been under the radar for quite some time, yet one look at the profiles will make you think otherwise. They aren't doing any crazy or outrageous marketing, just letting their products speak for themselves. They have a strong focus on formulas, while not losing that "cool" factor about them.

If you haven't taken a look at them yet, we urge you to. The formulas are impressive, they aren't afraid to use new and innovative formulas, and we expect more from them in the near future.

What's In It?

One serving contains:

  • 8g Citrulline Malate (2:1) – promotes blood flow and pumps
  • 4g GlycerSize® – more stable form of Glycerol that holds blood and water within the muscle
  • 1g Super Spinach™ – source of Nitrates
  • 1g Agmatine – this produces Nitric Oxide and larger pumps
  • PegaPump™ – vasorelaxant which aids in pumps
  • 1g ALCAR - form of Carnitine which that aids in focus
  • 1g Tyrosine - amino acid that aids in focus
  • 600mg Alpha GPC - nootropic that improves focus
  • 300mcg Huperzine A - prevents Choline from being broken down in the brain
NovaPump Neuro Label

Bottom Line:

NovaPump Neuro is one of our favorite stim-free pre-workouts, and we highly suggest you go ahead and try it. If you're looking to stay away from stimulants, yet still want focus in the gym along with powerful pumps, InnovaPharm is certainly a brand to look at. 


Read our full review here.


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#4 MPA Supps CelluVol

MPA Supps CelluVOL
  • Rating: 9.0 out of 10
  • Servings: 30 servings
  • Best For: Non-Nitrate Formula​​

Use coupon code INFORMANT to save 15%

Pros

  • 7g L-Citrulline
  • 1.5g Nitrosigine®
  • 5g HydroMax
  • Electrolytes 
  • Taste
  • Transparent Formula

Cons

  • Value

CelluVOL from MPA Supps has been a product that I have seen travel the interweb highways with many people touting the effectiveness of the product. It's not a shock to understand why when you take a look at the label.

MPA Supps CelluVOL is more than just a great pump product, it can second as a non-stim pre-workout powder. We get a massive 7g dosage of Citrulline, designed to imporve blood flow. HydroMax, a more stable form of Glycerol, is used next at a huge dosage of 5g. Citrulline pushing the blood into the muscle, while HydroMax holds it there. We don't stop there. we also get 1.5g of Nitrosigine, designed to enhance nitric oxide production by the body. Collectively, these ingredients give you the swole you need.

CelluVOL also tosses in two additional ingredients allowing it to second as a stimulant free pre-workout. We get 600mg AlphaSize AlphaGPC (50%). This is a nootropic designed to improve mental clarity and focus. Finally, we get 300mg of ElevATP designed to produce energy. A great stim-free pre-workout all around.

Who Makes It?

MPA Supps is a smaller supplement company owned by the late Matt Porter. Matt was a bodybuilding and coach, that was well respected in the industry. The entire line of MPA Supps products use high quality, expensive ingredients. You can expect to pay more for the supplements, but the price is justified by the quality of work.

What's In It?

One serving contains:

  • 7g Citrulline – transports blood into the muscles
  • 5g HydroMax – more stable form of Glycerol that holds blood and water within the muscle
  • 1,500mg Nitrosigine – enhances body's NO production
  • 600mg AlphaSize Alpha-GPC – nootropic that improves focus
  • 300mg ElevATP – helps with ATP production aka energy

Bottom Line:

MPA Supps CelluVOL is an amazing product. You will find this #1 on many people's list of best pump products because it is really that good. Matt Porter put time and research into developing his products. Yes, it is a bit more expensive than others on this list, but that's because it goes above and beyond your typical pump product.


If you're looking for something that is high quality and consistent, that will give you more than just a pump, this should be your go-to pump/pre-workout product.


Read our full review here.

Use coupon code INFORMANT to save 15%

#5 NutraBio PRE Stim-Free

NutraBio PRE Stim Free
  • Rating: 8.7 out of 10
  • Servings: 30
  • Best For: Complete Profile

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Pros

  • 3.2g Beta-Alanine
  • 1.5g L-Tyrosine
  • 6g L-Citrulline
  • 2.5g Betaine Anhydrous
  • 100% Transparent Label

Cons

  • Could use more Nitrosigine®

If you've ventured around our website, you've seen the brand NutraBio and may have seen their stimulant based pre-workout which is rated top 5. Their Stim-Free PRE is also amazing. They essentially looked at their award winning PRE Extreme and formulated it to remove the stims while still providing a great pre-workout powerhouse. 

When we say well-rounded, we mean that NutraBio tries to hit on everything from strength to endurance to hydration. We get a Power, Strength & Endurance Complex. They also give us a Pump Matrix. Then we get a Focus & Drive Matrix. Lastly, they cure our Hydration with several key ingredients.

You won't necessarily find high dosages of key branded ingredients like you may in other supplements, but they also include more to hit on all pillars a pre-workout should hit on. We are a huge fan of Stim-Free PRE from NutraBio because they truly care about you and your workout.

Who Makes It?

NutraBio won our 2017 Brand of the Year award for their commitment to label transparency and product consistency. They care about the consumer, and what we are putting into our bodies. They also care about creating best tasting pre-workout supplements.

NutraBio has a 3rd party testing website called CheckMySupps.com where you can track the validity of the supplements you buy. Can you find another company with that kind of commitment to the consumer? Good luck.

What's In It?

One serving contains:

  • 3.5g L-Leucine – one of the three BCAAs, Leucine is responsible for starting the mTOR process; many say it is the most important
  • 3.2g CarnoSyn Beta-Alanine - this is the ingredient that gives you the tingles, but it is not a stimulant and it helps with power
  • 3g Creatine Monohydrate – promotes muscle strength and gains
  • 2.5g Betaine – clinical dosage of Betaine that helps with prolonged endurance
  • 1.2g Malic Acid – helps provide energy
  • 300mg Creatine MagnaPower – along with creatine monohydrate, helps promote strength gains
  • 6g L-Citrulline - promotes blood flow and pumps
  • 1g Agmatine Sulfate – helps produce NO in the body to contribute to the pump
  • 750mg Nitrosigine – increases NO in body to produce great pumps
  • 1.5g Tyrosine – cognitive enhancing ingredient, great dosage
  • 500mg Choline Bitartrate - cognitive enhancing ingredient to help with focus
  • 100mcg Huperzine A - another great cognitive enhancing ingredient
  • 2.7g Hydration Matrix - helps keep you hydrated
NutraBio PRE Stim Free Label

Bottom Line:

As you can tell based on the sheer number of ingredients, NutraBio PRE Stim-Free is going to be a kick-ass non-stim pre-workout supplement. The team at NutraBio felt it was important to hit on all the important aspects a stimulant based pre-workout would. You will get a great workout powered by this stimulant free pre-workout supplement.


Read our full review here.

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Do You Need Stimulants?

You will find A LOT of pre-workout products on the market, and even here at Fitness Informant, that use stimulants. If you can stomach them and they don't have an adverse affect on you they are a great addition. However, we understand some cannot tolerate them, in fact, they are even deadly to some. In that case, companies have smartened up and started producing pre-workout supplements without the stimulants.

Long story short, stimulants are not needed nor are they required. They can provide fat burning, focus and energy producing affects, but so can other non-stimulant ingredients found in these pre-workouts listed above.

If you have issues with stimulants, this list will provide you with clear direction on where you should turn to power you through your next workout. If you have any questions, ask. That's what we are here for!

Our Muscle Stim-Free Pre-Workout Supplement Testing Process

We examined five different areas of each pump activating supplement when we compiled our rankings:

  1. Ingredients Profile
  2. Effectiveness
  3. Taste
  4. Mixability
  5. Value

preworkout powder in bottle

Ingredients Profile

When we review each pump activating supplement on their ingredient profile, we look at the active ingredients being used and their dosages.

Many pump supplements include a variety of beneficial ingredients, but under dose them proving to be non-effective.

Effectiveness

Effectiveness is an extension of ingredient profile. If the product uses proven ingredients at clinically suggested dosages, the product should be effective.

Everyone is different. Everyone takes to different ingredients differently at varying dosages. We have tried and tested each of these products throughout the full duration of their container to ensure these products are effective over their life.

Taste

We review taste on two different components. First, how close does the muscle pump supplement taste to the actual name printed on the label. For example, does Blue Raz actually taste like blue raspberry. Second, we review it on overall taste (in our opinion) versus others in the same flavor category.

Mixability

Mixability refers to how well does the product mix in 8-12oz of water. The testing process for a pump activating drink we use here is a generic Blender Bottle with the chrome spiral ball. We use regular tap water with no ice.

Value

Value is a combination of ingredient profile, effectiveness, taste, mixability and cost. We do not just look at the price tag like a lot of others do. If a product is priced at a premium, we inform you if it is worth the premium price or not based on all the categories. We look at the overall picture of the  pump activating supplement, and how it compares to other pump supplements on the market.

Please Note: Many of the “top 10” lists you find online are written by content writers with no in-gym or supplement experience who are paid by the word count to write an article for a website trying to generate money.

These lists are influenced by brands who pay for placement. These lists contain pump activating supplements that are, for the lack of a better word, garbage.

The following products on our best of list were used by the author of this article. He used the pump activating supplements through the duration of a full container. Sample packs were not used in determining the rankings of the best pump producing supplements.

Stop relying on faulty information that is influenced by outside writers and money. This list is the real deal. Here at Fitness Informant, we don’t steer you wrong. Be Informed. Live Fit.