Best Caffeine-Free Pre-Workout Supplements

Proper pre-workout is essential to priming your body to effectively fuel performance in the gym and over-the-counter supplements are the most commonly used pre-workout nutrition. Pre-workout supplements contain various ingredients, especially amino-acids such as L-Citrulline as well as creatine, beta alanine, L-leucine and work by boosting energy levels and enhancing performance. There are more than 500 effective pre-workout supplements currently available on the market, and the vast majority contain the stimulant caffeine. There are however about 50 stimulant-free pre-workouts out there, but only 10 or so are really effective and worth buying.

Although most workout enthusiasts, weight lifters and and bodybuilders prefer caffeinated pre-workouts because they help them make the most of their workouts, some choose caffeine-free pre-workouts. People who are new to the gym typically start out with a stimulant-free pre-workout supplement. Given that 100 mg of caffeine in a pre-workout is equivalent to 1 1/4 cans of Red Bull or 1 cup of coffee, those who want to avoid the side effects of caffeine ( e.g, insomnia, restlessness/jitters, irregular heartbeat, increased heart rate, nausea, etc ) also prefer to take stim-free pre-workouts.

Top 10 Best Caffeine-Free Pre-Workout Supplements

Caffeine-free pre-workouts effectively give you a serious boost in energy as well as the pumps to fuel up before your workout sessions, without the negative effects of this stimulant. If you drink at least a cup of coffee on a daily basis, taking a caffeinated pre-workout supplement can ultimately overstimulate your body, resulting in sleep problems that can negatively impact muscle recovery.

Whether you simply want to cut back on your caffeine intake, or harness the power of a pre-workout supplement without worrying about the side effects of a stimulant, a high-quality, effective caffeine-free pre-workout supplement is the right solution. That’s because it enables you to reap all the benefits of pre-workouts and at once take advantage of restful recovery.

To help you select the best stim-free pre-workout for you, we’ve compiled top 10 caffeine-free pre-workout supplements, based on several factors that include our personal experience with the supplement, abundance of positive user reviews, claims that are backed up by science,, and positive feedback from our review staff.

#10 Pump Boost by RSP Nutrition

Price: $19,97

Specifically formulated to increase muscle pumps, RSP Pump Boost is a good choice if you’re looking for a stimulant-free pre-workout supplement that is backed by science. This formula contains 3 natural ingredients at clinically effective dosage — 2.5 grams L-Citrulline, 250 mg Water Coconut powder and 1.5 grams HydroMax,, a maximally concentrated blend of glycerol and silica that contains more than 65% free molecular glycerol. This is incredibly beneficial to pumps, as it is rapidly absorbed, which helps increase the concentration of fluid in the muscle tissue and the blood.

Pump Boost is enriched with L-Citrulline, a precursor of Nitric Oxide. This ingredient thus helps enhance blood flow and maximize your pumps during the workout session. This versatile caffeine-free pre-workout formula significantly increases cell volume for muscle pumps and supports hyper-hydration which works great for stamina and endurance situations e.g. adaptation to humidity, stress and heat. The flavors available include Blue Raspberry, Peach Mango and unflavored. Mix 1-2 scoops with 10 ounces of water 15-20 minutes before training. You can also stack it with other pre-workouts.

#9 OPUS by Magnum Nutraceuticals

Price: $44.99

One of the best-known and popular stim-free pre-workout supplements for quite some time, OPUS by Magnum is an instantized, powerful formula packed with lots of amino-acids and essential micro-nutrients that efficiently provide energy at the cellular level, without the use of caffeine , creatine, or any other stimulant. It combines 16 of the most potent, clinically proven A-grade performance ingredients in the full clinical doses, including Beta Alanine, L-leucine, L-Citrulline, glycine, vitamins and minerals.

OPUS is an excellent, versatile workout beverage that provides the energy and strength enhancement of a pre-workout supplement and the muscle recovery benefits of BCAAs with a delicious taste ( Juicy Watermelon, Twister Pop and Red Berry Candy flavors). In addition to dramatically increasing hydration and blood flow to your muscles, OPUS also speeds up recovery and reduces muscle soreness and fatigue, making it a great choice for your training fuel, which you will surprisingly feel within just a few minutes, given that it’s caffeine-free. With 48 servings per container, the cost per serving is under $1, so this formula is cost-effective as well. Avoid shaking in an aggressive manner in the shaker cup.

#8 Pump HD by BPI Sports

Price: $26.99

Initially designed as a strong stimulant pre-training supplement, BPI Pump HD has been reformulated as a completely stim-free pre-workout that helps intensify your training sessions by amplifying your muscle pumps. This Lemonade/Wicked Fruit Blast flavored pump enhancer combines 1 g Creatine, 1 g Glycerol 2X-RS ( double-strength bonded glycerol 2x re-uptake system), 1 g proprietary Adaptogenic and Erythropoietin matrix and 1 g Andrographis leaf extract, as well as electrolytes, vitamins and minerals.

PUMP HD is proven to increase cell volume for muscle pumps and cellular energy, as the double-strength Glycerol 2x-RS quickly absorbs into the intracellular space for excellent vasodilation. With 20 servings per container, the cost per serving is a bit over $1, but the dose may be better suited at 2 scoops ( 20 g). This formula super saturates pumps, improves focus, is a fully caffeine/stim-free energy source and is stackable with other pre-workouts.

#7 N.O.-Xplode Caffeine-free by BSN

Price: $36

The caffeine-free pre-workout igniter N.O. -Xplode has been reformulated several times and the current formula combines a truly impressive number of ingredients that support increased nitric oxide production and cell volume and promote enhanced pumps and workout endurance. It is based on the N.O. -Xplode Master Performance proprietary blend that incorporates 5.1 grams Myogenic Matrix and 2.9 grams Endura Shot, among others,

The shortcomings of this formula include the fact that, although it’s fully caffeine-free, it does contain DMAE which is a safer and milder stimulant (DMAE’s stimulant effects are significantly different from caffeine’s effects ) and the ingredients are in relatively small quantities, This formula contains creatine, is readily available in many different stores, the cost per serving is around $1 and tastes really good.

#6 PUMP Powder by MAN


Pump Powder is a dedicated, stimulant free Nitric Oxide stimulator and pump enhancer, making it a great choice for anyone who trains at night, because it doesn’t cause jitters nor interferes with sleep. For the best results you should mix 1-2 scoops (7.5 g) with up to 16 ounces of water approx. 15-30 minutes prior to the workout session and should be used on training days only.

With 30 servings per container and a 100% formula transparency, Pump Powder by MAN contains L-Citrulline, Glycerol monostearate (65%, glycerol), Agmaflow ( Agmatine sulfate) in clinically effective amounts as well as vitamin B12, niacin, and vitamin C. Pump Powder hits within just a few minutes, helping to enhance muscle pumps and vascularity and can be stacked with other pre-workouts’ it contains no creatine, no dyes and of course, no caffeine and the flavors available are Sour Batch and Blue Bombsicle.

#5 VASOsport by MusclePharm


VASOsport is a stim-free pre-workout supplement based on L-Citrulline malate ( 2 parts L-Citrulline which converts to arginine to produce NO, and 1 part malic acid that produces energy), Agmatine sulfate ( a superior vasodilator that prolongs the formula’s pump-inducing benefits), Nitrosigine (inositol-stabilized arginine bonded ionically with silicon for long-lasting vasodilating effects ) and Taurine ( electrolyte regulator).

With 30 servings per container, this pump stimulator effectively enhances NO production and cell volume, thus promoting elevated pumps without the stimulant effects of caffeine. This NO boosting formula is MusclePharm’s first caffeine-free pre-workout. If you are a larger guy, you may need 2 scoops (12 g) per serving.

#4 EVP by EvoGen Nutrition 

Price: $49.95

Arguably the most reputable and popular hardcore stimulent-free pre-workout supplement out there, Evogen’s EVP ( short for Evopoietin One-Alpha) is an excellent choice for anyone looking to enhance strength and endurance rapidly and build more lean muscle, anyone who plays high intensity sports or lifts weights and trains late in the afternoon/at night. EVP combines pharmaceutical-grade ingredients that facilitate incredible muscle size, gains in strength and pumps.

One of the ingredients that sets EVP’s Strawberry Kiwi/Grape flavored powerhouse formula apart from other pre-workouts is the anabolic catalyst BioFerm QA consisting of A-grade, fermented and ultra-soluble L-Leucine and EVP also contains Glutamine, B vitamin complex and Citrulline Malate which accelerate muscle growth and recovery. Additionally, it incorporates a recovery complex, a volumizing complex and a cognitive enhancing complex. With 40 servings per container, this formula is a superior, ultra-advanced yet cost-effective caffeine-free pre-workout.

#3 Stim-Free SuperCharge by Labrada

Price: $43.95

This newly reformulated caffeine-free version of SuperCharge formula combines more than 10 performance enhancing ingredients in clinically effective amounts. These include 5 g CreaPure creatine monohydrate to boost muscle strength, 5 g BCAAs to increase lean muscle mass and speed up recovery, 2 g Carnosyn Beta Alanine to enhance endurance, alongside a cutting-edge form of L-Citrulline — NO3T Citrulline Nitrate that improves blood flow to your muscles via NO production. With 25 servings per container ( serving size: 27 grams) , Stim-free SuperCharge comes in 2 flavors, Fruit Punch and Grape and is completely from artificial coloring, sweeteners and preservatives.

#2 PRE Stim-Free by NutraBio


NutraBio’s caffeine-free, ultra-advanced pre-workout powerhouse harnesses the power of the Nitric Oxide Pump matrix, Ppwer, Strength and Endurance Complex, Focus and Drive matrix and Electrolyte & Hydration Optimizer to put your workout session on overdrive every single time. PRE Stim-free version hits within a few minutes, maximizing cellular energy and focus, super saturating muscle pumps, accelerating lean muscle growth, supporting muscle strength and endurance, and delaying workout fatigue. 

Containing 20 servings and boasting 15 scientifically backed, clinically dosed ingredients that include 3 grams PharmaPure creatine monohydrate, 3.5 grams naturally fermented L-leucine, 3.2 grams Beta-Alanine and 6 grams fermented L-Citrulline, this stim-free pre-workout is a bit expensive ( the cost per serving is $2) but it’s totally worth the money. It comes in 3 flavors – Green Apple, Watermelon and Dragon Fruit Candy and is BSE/TSE free, allergen free and gluten free. 

#1 STIM-FREE PreSeries by Transparent Labs

Price; $49( 1 pouch)-$119 (3 pouches)

Part of the PreSeries pre-workout collection, STIM-FREE by Transparent Labs is hands-down the best caffeine free pre-workout supplement currently available on the market. This exceptional formula contains the most effective and powerful stim-free energy boosters and performance enhancers, enabling you to take your workout sessions to the next level without the jitters and the other side effects associated with caffeine. STIM-Free PreSeries comes in a jumbo sized jug ( 30 servings) specifically because each serving actually exceeds a whopping 24 g per scoop for maximum results.

This ultra-advanced, superior caffeine-free pre-workout contains an incredible number of active ingredients at dosages that have been clinically proven to be effective and at once safe. These ingredients which include an impressive 6 grams of L-Citrulline, 4 grams of Beta-Alanine and 4 grams of BCAA 2:1:1 (instantized), 3 grams of Creatine HCl, 2.5 grams of BetaPure Betaine and 1.3 grams of Taurine work synergistically to increase NO to your muscles, enhance your workout performance, endurance, stamina, and focus, improve lean muscle gains and promote restful recovery.

We highly recommend STIM-FREE PreSeries by Transparent Labs to all bodybuilders or athletes, both men and women, who want to leverage and reap all the benefits of high-intensity, rewarding pre-workout experiences. every time. As with all of the other Transparent Labs products, this innovative PreSeries Stim-Free formula boasts 100% transparency and contains absolutely no artificial sweeteners, coloring, preservatives, gluten, GMO. The flavors available include Blue Raspberry, Strawberry Lemonade, Orange, Tropical Punch, Sour Grape and Green Apple.

This #1 rated caffeine-free pre-workout formula is the best choice if you’re intolerant to caffeine or looking to cut back on your caffeine intake.

Why Use Caffeine-Free Pre-Workout Supplements

Most pre-workouts out there contain caffeine because this stimulant helps to accelerate a metabolic cascade that prompts a surge in blood sugar levels by releasing the main catabolic hormone called glucagon. This hormone increases energy expenditure by promoting gluconeogenesis (GNG), a metabolic pathway through which non-carbohydrates, especially amino-acids are converted into carbs/glucose.

Increased blood glucose levels represent the equivalent of much-needed muscle fuel, but the problem here is that when glucagon is released, almost every effort is made for the purpose of raising blood sugar levels. This includes specific metabolic pathways that should not be triggered while lifting weights or building lean muscle, because you certainly don’t want your amino-acids to be depleted when doing so,