Pre-workout supplements promise to give you a boost before your gym session. They’re supposed to crank up your energy, help you push harder, and improve your endurance. But how do you know which ones actually work?
We’ve got your back! We’ll review all the top contenders to help you find the best pre-workout for your needs and goals and one that fits your budget. Explore our top picks for 2025, starting with XWERKS Ignite Pre-Workout!
7 Best Pre-Workout Supplements in 2025: Quick Overview
XWERKS Ignite Pre-Workout – Best pre-workout supplement overall
Crazy Nutrition Intensive Pre-Train – Best for energy and focus
Blackwolf Pre-Workout – Best for speedy recovery
Transparent Labs Stim-Free Pre-Workout – Best caffeine-free supplement
Transparent Labs Preseries LEAN Cutting Pre-Training formula – Best for cutting
Performance Lab Pre Lab Pro – Best for hydration
Sculpt Nation Pre Workout – Best for metabolism
How To Evaluate Pre-Workout Supplements: Buyer’s Guide
Choosing the best pre-workout for women or men can be daunting, especially with many available options. Here are some key factors to consider, some of which we also used to rank our top picks:
Ingredients and Dosage
We checked the ingredients and their dosages to see if there was any science to back up their claims. Basically, are these ingredients going to give you that extra boost you crave, or are they all hype? Look for stuff that matches your goals, and make sure the dosage is high enough to actually do something.
Stimulant Content
If caffeine makes you jittery, skip the pre-workouts loaded with it. There are plenty of stimulant-free options out there.
Pricing and Value
We compared the price per serving to see if you’ll be getting a good deal. How many servings are you getting for your money? Pre-workouts can range from budget-friendly to very expensive. Generally, the more you pay, the better the quality of the ingredients. Still, there are good deals to be found if you shop around.
User Reviews
See what other people experienced with each pre-workout product. Discover what customers liked (and disliked) about each supplement. Did it work to help them reach their fitness goals? Did it upset their stomach? Reading reviews can help you pick winners and avoid some duds.
Safety and Side Effects
Not all supplements are created equal. We looked for any potential side effects and checked for warnings about certain ingredients.
Third-Party Testing
This basically means a separate company checked the supplement to make sure what’s on the label is actually in the product and the amounts are accurate. Look for this to gain that extra peace of mind!
1. XWERKS Ignite Pre-Workout – Best Pre-Workout Supplement Overall
Cost per Dose: $1.63
Caffeine per Dose: 150 mg
Pros
Delivers smooth and sustainable energy
Vegan-friendly ingredients
Increases work capacity and muscular endurance
Contains brain-enhancing nootropics for sharper focus
Offers delicious flavors like orange, green apple, and blue raspberry
Cons
Doesn’t contain creatine
Standout Features
XWERKS Ignite ditches the whole “hype you up and crash you hard” approach. Instead, it promises to give you long-lasting energy, bump up your endurance, and keep you focused throughout your entire workout. And there are no jittery highs followed by that afternoon slump since it aims to sustain your exercise performance.
Who Should Try XWERKS Ignite?
Ignite may be the ideal workout buddy if you want to take your fitness game to the next level, especially if vegan is your lifestyle. It’s also dairy-sugar and gluten-free, so it checks the major dietary restriction boxes. And if you’re looking for the best-tasting pre-workout, it comes in different flavors!
Who Ought To Steer Clear of XWERKS Ignite?
If you’re looking for a pre-workout with creatine, Ignite doesn’t have it. Creatine is a popular pre-workout ingredient that helps with lean muscle growth. Instead, Ignite has caffeine for that energy boost. So, if you’re sensitive to caffeine, this might not be your best bet.
Main Ingredients
Caffeine (150 mg): It enhances power output and cardiovascular performance [1].
Calcium (80 mg): This mineral helps muscles contract, enhancing athletic performance and endurance during workouts [2].
Vitamin B6 (10 mg): It helps the body use and store energy from proteins and carbohydrates in food, which is vital for maintaining energy levels during a workout [3].
Vitamin B12 (1500 mcg): This nutrient sustains energy levels and prevents fatigue [4].
Rhodiola Rosea (500 mg): It improves endurance and reduces how tired you feel, which means you can train harder and longer [5].
DMAE (200 mg): This may boost mental performance and cognitive function [6].
L-Tyrosine (2 g): As a non-essential amino acid, it alleviates stress and mental fatigue, improving workout intensity [7].
Beta-Alanine (1.5 g): It increases muscular endurance and reduces fatigue [8].
L-Citrulline Malate (3 g): This nitric oxide booster could improve blood flow to the muscles during workouts, delivering more oxygen and nutrients [9].
Dosage
Take a single serving of one scoop about 20–30 minutes before your workout to get the most out of its performance-boosting effects.
Price
One month: $49 for one-time buyers
One month: $46.55 for subscribers
User Feedback
Many people like XWERKS Ignite as a pre-workout supplement. In r/Supplements, for example, u/Ordinary_Meat4140 said he’s been using it for years, and it still works great. On the other hand, another Redditor on the same thread prefers another brand.
>>Buy XWERKS Ignite Pre-Workout from the official website
2. Crazy Nutrition Intensive Pre-Train – Best for Energy and Focus
Cost per Dose: $2.17
Caffeine per Dose: Ingredient amounts not specified
Pros
Boosts energy while improving focus
Offers three delicious flavors
Vegan and vegetarian-friendly
Provides more pump and drive
Cons
Free shipping only for orders over $60
Standout Features
This pre-workout powder has a unique mix of powerful natural ingredients designed to give you the energy, focus, and drive to prep you for your gym session.
Who Should Try Crazy Nutrition Intensive Pre-Train?
Hoping to level up your workouts? Crazy Nutrition Intensive Pre-Train could be a good fit if you’re a gym enthusiast, track athlete, or someone into outdoor adventures, CrossFit, or just some serious weightlifting.
Who Ought To Steer Clear of Crazy Nutrition Intensive Pre-Train?
Like other caffeinated pre-workouts, Crazy Nutrition Intensive Pre-Train might not be ideal if caffeine makes you jittery or you prefer to avoid stimulants altogether. However, there’s a green apple flavor that’s caffeine-free, so that’s a possible option.
Main Ingredients
Citrulline Malate: It enhances nitric oxide production, which improves blood flow to muscles during exercise, potentially increasing endurance and reducing fatigue [9].
Beta-Alanine: The amino acid may increase carnosine levels in muscles, improving athletic performance and prolonging endurance while delaying fatigue [8].
Taurine: It regulates water and electrolyte balance in the blood, contributing to better exercise performance and reducing cramping [10].
KSM-66 Ashwagandha: This herb helps reduce stress and anxiety, enhances endurance, increases strength, and improves overall resilience to physical and mental stress [11].
Caffeine (in select flavors): It increases alertness and reduces the perception of effort during exercise [1].
EnXtra: This caffeine enhancer provides a longer-lasting stimulant effect without the crash [12].
Dosage
Easy does it with Crazy Nutrition Intensive Pre-Train. You just have to mix one scoop with some water, approximately 8 to 12 ounces, about 30 minutes before you hit the gym.
Price
One pack: $64.99 for one-time buyers
One pack: Starts at $45.49 subscribers
User Feedback
Some customers appreciate Crazy Nutrition products like Intensive Pre-Train. One of them is Brianna, who called it her go-to protein and raved about the delicious taste of the powder on Trustpilot [13]. While Tyraan felt the apple green flavor wasn’t subtle enough, he did like the other flavors better [14].
>>Check out the best deals for Crazy Nutrition Intensive Pre-Train
3. Blackwolf Pre-Workout – Best for Speedy Recovery
Guarantee: 100 days
Cost per Dose: $2.27
Caffeine per Dose: 200 mg
Pros
Research-backed ingredients
Reduces oxidative stress
Helps improve cognitive and neural performance
Includes a caffeine-free option for those sensitive to stimulants
Cons
Only 22 servings in every tub
Standout Features
Blackwolf Pre-Workout is packed with science-backed ingredients to improve your endurance, grant you more energy, and enhance your focus as you exercise.
Who Should Try Blackwolf Pre-Workout?
This pre-workout may be a great match if you’re a fitness enthusiast or athlete who wants to recover more quickly. You’ll be less sore after a workout and ready to return to the gym faster.
Who Ought To Steer Clear of Blackwolf Pre-Workout?
If you get tingly from beta-alanine, this supplement might not be recommended for you.
Main Ingredients
L-Citrulline Malate (6000 mg): It increases endurance and reduces fatigue during workouts [9].
Beta-Alanine (3200 mg): This helps buffer amino acids in muscles during high-intensity exercise and slows down muscular fatigue [8].
Creatine Monohydrate (3000 mg): It boosts ATP production in muscles. As a result, it could increase the available energy during high-intensity workouts for improved strength and athletic performance [15].
Caffeine Anhydrous (200 mg): The stimulant provides a significant energy boost, enhances focus and concentration and increases endurance [1].
Dosage
Just mix the pre-workout powder with some water around 15 minutes before your workout, and you’re good to go.
Price
One pack (22 servings): $49.99 for one-time buyers
One pack (22 servings): $39.99 for subscribers
User Feedback
Several users have a positive opinion of Blackwolf’s pre-workout supplements. If you’re curious to know what people think of this pre-workout, Reddit reviewer u/PRvisitor praised its transparency of ingredients and noticeable results in r/weightlossdiets. On the flip side, he admitted that the brand’s products are pricey [16].
>>Learn how Blackwolf Pre-Workout supports your recovery
4. Transparent Labs Stim-Free Pre-Workout – Best Caffeine-Free Supplement
Guarantee: 45 days
Cost per Dose: $1.67
Caffeine per Dose: Caffeine-free
Pros
Stimulant-free
Contains nootropics for improved focus and mental clarity
Provides energy without the jitters
Gluten-free and non-GMO
Cons
The large serving size might be cumbersome for some users
Standout Features
This best stim-free pre-workout is all about giving you the pre-exercise boost you need to crush intense workouts, minus the jitters. It skips the stimulants but powers you up with gentler natural ingredients in clinically suggested doses.
Who Should Try Transparent Labs Stim-Free Pre-Workout?
Do you often work out later in the afternoons or evenings? Or do stimulants easily affect you even in the morning? As one of the best non-stim pre-workout supplements, this powder is free from caffeine, so you don’t have to worry about it disrupting your sleep at night.
Who Ought To Steer Clear of Transparent Labs Stim-Free Pre-Workout?
Now, this Stim-Free Pre-Workout from Transparent Labs is awesome, but it might not be fitting if you rely on that pre-workout caffeine jolt to get going.
Main Ingredients
Citrulline Malate (8000 mg): This may enhance nitric oxide production, improving blood flow and muscle pumps [9].
Beta-Alanine (4000 mg): It helps delay tiredness and improve endurance [8].
Betaine Anhydrous (2500 mg): This supports lean muscle growth and reduces fatigue [17].
Taurine (1300 mg): It could aid in hydration and lean muscle building [10].
L-Tyrosine (1000 mg): This non-essential amino acid enhances focus and cognitive performance under stress [7].
Senactiv (50 mg): Known to support muscle recovery, it helps preserve muscle cells and encourages the regeneration of new cells [18].
BioPerine (5 mg): This black pepper extract increases nutrient absorption [19].
Dosage
If you’re new to this pre-workout, take half a scoop mixed with about 6-8 ounces of water, 20 to 30 minutes before you start exercising. If you feel good and want a stronger boost, you can bump it up to a full scoop mixed in 10-12 ounces of water.
Price
One month: $49.99 for one-time buyers
One month: $44.99 for subscribers
User Feedback
Some customers are impressed by this Stim-Free Pre-Workout from Transparent Labs. One of them is u/No_Mathematician4718, who vouched for it as one of the top stim-free pre-workouts on r/Supplements. Nevertheless, it wasn’t the only product he recommended in his Reddit review.
>>Explore the gentler ingredients of Transparent Labs Stim-Free Pre-Workout
5. Transparent Labs Preseries LEAN Cutting Pre-Training Formula – Best for Cutting
Cost per Dose: $1.67
Caffeine per Dose: 200 mg
Pros
Designed to enhance fat loss
Boosts endurance
No artificial sweeteners or coloring
Non-GMO and gluten-free
Cons
Those sensitive to caffeine may need to adjust their dosage
Beta-alanine can cause an uncomfortable tingling sensation
Standout Features
Transparent Labs’ Preseries LEAN is a pre-workout designed specifically for cutting. It’s packed with powerful ingredients that may aid in building lean muscles, stretching endurance, and keeping you focused and energized throughout your entire workout.
Who Should Try Transparent Labs Preseries LEAN?
Looking for the best pre-workout for muscle gain? Or perhaps you’re interested in the best pre-workout for weight loss? Either way, LEAN is a viable option if you want to burn fat and lose weight but hold onto that muscle mass you’ve been building.
Who Ought To Steer Clear of Transparent Labs Preseries LEAN?
Watch out for this supplement if you get jittery easily from coffee. The same goes for beta-alanine, another ingredient that causes some people to experience a tingly sensation.
Main Ingredients
Citrulline Malate (6000 mg): It may enhance nitric oxide production, improving strength and endurance [9].
Beta-Alanine (2000 mg): This ingredient may increase muscle carnosine levels, so you won’t feel fatigued right away [8].
Betaine Anhydrous (1500 mg): It supports lean muscle growth and reduces tiredness [17].
Acetyl L-Carnitine (1000 mg): This can aid in fat transportation into the mitochondria for energy production [20].
PurCaf Organic Caffeine (180 mg): It provides a natural energy boost with fewer jitters [1].
Dosage
Mix only half a scoop of this pre-workout powder with 6-8 ounces of water to see how you react and gauge your tolerance first. If you feel okay and want a stronger kick, go for a full scoop with 10-12 ounces of water 20-30 minutes before you hit the gym.
Price
One month: $49.99 for one-time buyers
One month: $44.99 for subscribers
User Feedback
Several users appreciate this LEAN Pre-Training product from Transparent Labs. In r/Preworkoutsupplements, u/naderq said he loved the new version since it offers a better mood boost than the old formula. Another Redditor on the same thread, u/AwayTeamRedShirt, hasn’t tried it yet but agreed he had good luck with the brand’s other fitness products [21].
>>Buy the Transparent Labs Preseries LEAN Pre-Training Formula here
6. Performance Lab Pre Lab Pro – Best for Hydration
Cost per Dose: $1.97
Caffeine per Dose: 80 mg
Pros
Electrolytes help hydrate your body
Improves energy and endurance
May increase muscle strength
Natural berry flavor
Cons
Slightly pricier than competitors
Standout Features
This pre-workout supplement combines electrolytes, nootropics, and other natural ingredients to boost muscle endurance and power during workouts.
Who Should Try Performance Lab Pre Lab Pro?
Do you want to restore the water you lost as you sweat it out while exercising? Pre Lab Pro is formulated to hydrate your body to improve your performance and keep tiredness at bay.
Who Ought To Steer Clear of Performance Lab Pre Lab Pro?
Take note that this supplement doesn’t have a caffeine-free version. So, you might be better off with a milder alternative if you’re easily affected by stimulants.
Main Ingredients
Himalayan Pink Salt (500 mg): The sodium in Himalayan salt is one of the electrolytes your body needs for nerve function and hydration [22].
Potassium (49.5 mg): It’s another electrolyte that enables your muscles and nerves to work properly [22].
Caffeine (80 mg): This popular stimulant is known to energize your body [1].
L-Tyrosine (400 mg): As an amino acid, it may support your brain health and enhance your concentration [7].
Dosage
Mix in one scoop to 300 ml of water and enjoy 15-30 minutes before your gym session.
Price
One month: $59 for one-time buyers or $53.10 for subscribers
Two months: $118 for one-time purchasers or $106.20 for subscribers
Four months: $177 for one-time buyers or $160.48
User Feedback
Some customers approve of this natural pre-workout by Performance Lab. To illustrate, u/Sykeraxl mentioned in r/Syktohealth that Pre Lab Pro gave him steady energy and focus during his workouts. While he thought it was expensive, he emphasized that it was definitely worth trying [23].
>>Learn exactly how Performance Lab Pre Lab Pro hydrates the body
7. Sculpt Nation Pre-Workout – Best for Metabolism
Cost per Dose: $1.63
Caffeine per Dose: 300 mg
Pros
Cranks up your metabolism
It may aid in muscle-building
Keeps you energized
Longer guarantee than some competitors
Cons
Has a high amount of caffeine
Standout Features
Sculpt Nation’s Pre-Workout is designed to provide energy during workout sessions. What’s more, it could raise nitric oxide levels to promote lean muscle growth.
Who Should Try Sculpt Nation Pre-Workout?
Need help revving up your metabolism? This pre-workout powder from Sculp Nation contains amino acids that may speed up your body’s metabolism, making it easier to burn fat and sculpt your figure.
Who Ought To Steer Clear of Sculpt Nation Pre-Workout?
This supplement is powerful yet packed with caffeine, so consider looking for a gentler alternative if you’re sensitive to such stimulants.
Main Ingredients
InstAminos Blend (3 g): It combines three branched-chain amino acids (BCAAs), namely l-leucine, l-valine, and l-isoleucine, that play a role in metabolism and energy balance [24].
Betaine (100 mg): It assists you in building a leaner body by supporting muscle growth [17].
Caffeine (300 mg): It provides you with more physical and mental energy when you’re active [1].
L-Citrulline (1.5 g): By encouraging the production of nitric oxide, it improves blood flow to your muscles [9].
Dosage
The suggested dose is a single 9 g scoop around 45 minutes before you begin exercising.
Price
One month: $49 (regular price) or $32 (discounted)
Three months: $147 (regular cost) or $99 (discounted)
Six months: $294 (regular price) or $183 (discounted)
User Feedback
Many users are happy with Sculpt Nation and its supplements. One example is Joe E., who shared in his Trustpilot review that he loved the products he got and the great customer service [25]. Although Chris said he needs more time to see results, he did notice a little more definition in his abs and other areas [26].
>>Buy Sculpt Nation Pre-Workout from the official website
How Do Pre-Workout Supplements Work?
A pre-workout supplement is like your personal hype man in powder or capsule form. It’s a blend of ingredients designed to give you a kick-start before your workout. Think of it as fueling your body for battle: it promises to boost your energy, sharpen your focus, and even help you push a little harder during your exercises.
How Effective Are Pre-Workouts?
Here’s the thing about pre-workouts: how well they work depends on you and what’s in them. Some people swear by them, saying they get amazing results. Others might see small changes but not a huge difference.
The key is finding a pre-workout with ingredients that match your goals. Love lifting weights? Look for supplements with creatine to help you boost your workouts [15]. Running long distances? Citrulline malate might be better [9].
Dosage matters, too. A sprinkle of something probably won’t do much. Make sure there’s enough of each ingredient to actually have an effect.
>>Buy XWERKS Ignite Pre-Workout from the official website
When To Take Pre-Workout Supplements
Timing is key with pre-workouts. Most of them take 30-60 minutes to reach their peak effectiveness in the body, so you probably don’t want to down it right before hitting the treadmill.
Aim to take your pre-workout somewhere between 20-45 minutes before your workout. This way, you’ll be more likely to feel that energy surge and focus kick in as you’re warming up and ready to crush your goals.
Just remember, if your pre-workout has a lot of caffeine, consider taking it earlier in the day to avoid interfering with your sleep.
Last but not least, each supplement has its own dosage instructions, so be careful to read and follow the manufacturer’s recommendations.
Benefits of Pre-Workouts
Let’s look at how pre-workouts can take your workouts to the next level:
Energy Surge
Feeling sluggish before a workout? Pre-workouts, often packed with caffeine, can provide that much-needed kickstart [1]. They could help get your blood pumping and boost alertness, so you can hit the ground running.
Enhanced Performance
Pre-workouts may be treated as your performance partner in crime. Ingredients like creatine can help your muscles fire longer and recover faster, possibly allowing you to push those extra reps or lift heavier weights [15].
Sharpened Focus
Forget feeling foggy-headed during your workout. Some of the best pre-workouts contain ingredients that can sharpen your mental focus (such as DMAE) and support cognitive function [6].
Reduced Fatigue
Dreading that post-workout slump? Yeah, nobody likes feeling sore after a workout. Certain ingredients in pre-workouts, like branched-chain amino acids, can help reduce muscle fatigue during and after your workout [24].
Improved Motivation
Let’s face it: sometimes, getting to the gym is the hardest part. Pre-workouts can give you that extra nudge of motivation you need to get through the door and power through your workout. For instance, ingredients like rhodiola rosea may help keep you from feeling tired [5].
>>Explore the fitness benefits of XWERKS Ignite
Possible Side Effects of Using Pre-Workouts
Pre-workouts can be a great way to get that extra boost before hitting the gym, but they’re not without potential drawbacks. Some people may experience jitters or anxiety from the caffeine content, while others might get an upset stomach or that tingly feeling from beta-alanine.
If you’re new to pre-workouts, start with a lower dose and see how you feel before diving in headfirst.
FAQs About Pre-Workout Supplements
Now, let’s explore common questions people often ask about the best pre-workout to use before a gym session.
What Is the Best Pre-Workout Supplement?
There’s no single “king” of pre-workout supplements. It really depends on your goals and what you respond well to. Think of it like picking your workout playlist; some folks need high-energy bangers to get pumped, while others prefer chill-focused vibes. That said, our top pick is XWERKS Ignite Pre-Workout, a supplement that powers you up for gym sessions.
What Is the Best Thing To Have Before a Pre-Workout?
Wondering what’s the best pre-workout snack? Consider eating easily digestible carbs and some protein-packed food to fuel your body. A banana with nut butter is an example of a good pre-workout meal. Alternatively, any of the powder drinks we reviewed are some of the best pre-workout drinks you can enjoy.
Are Pre-Workout Supplements Worth It?
Some might be! The best pre-workout supplements can give you that extra boost of energy and focus and sometimes even pump you up for those tough workouts. But remember, it’s not a magic bullet. Consistency and a solid workout plan are key.
Is It Okay To Use a Pre-Workout Supplement Everyday?
Most of the best pre-workout powders rely on caffeine for that energy kick. Daily use could lead to caffeine dependence and tolerance, meaning you probably won’t feel the effects as much. Save it for those days when you really need an extra push.
Does Your Energy Crash After Taking Pre-Workout Products?
That dreaded crash after a pre-workout can be a real buzzkill. It often happens because of the caffeine content. While it gives you a great initial boost, once it wears off, you might feel drained. To avoid this rollercoaster, try a lower pre-workout dose or opt for a caffeine-free supplement. Also, staying hydrated throughout your workout helps a ton.
Our Verdict on the Best Pre-Workout Supplements
In conclusion, pre-workout supplements can give you more energy, help you lift heavier weights, and aid in recover faster. This guide gave you the lowdown on some of the best ones out there, like XWERKS Ignite Pre-Workout, to help you find the right fit for you! Ultimately, your choice of the 7 brands discussed here should be based on your needs and fitness goals.
>>Buy XWERKS Ignite Pre-Workout from the official website
References
Grgic, Jozo, et al. “Effects of Caffeine Intake on Muscle Strength and Power: A Systematic Review and Meta-Analysis.” Journal of the International Society of Sports Nutrition, vol. 15, no. 1, 2018, doi:10.1186/s12970-018-0216-0.
Saha, Soma, et al. “Vitamin D and Calcium Supplementation, Skeletal Muscle Strength and Serum Testosterone in Young Healthy Adult Males: Randomized Control Trial.” Clinical Endocrinology, vol. 88, no. 2, 2018, pp. 217–226, doi:10.1111/cen.13507.
Suidasari, Sofya, et al. “Dietary Vitamin B6 Modulates the Gene Expression of Myokines, Nrf2-Related Factors, Myogenin and HSP60 in the Skeletal Muscle of Rats.” Experimental and Therapeutic Medicine, vol. 14, no. 4, 2017, pp. 3239–3246, doi:10.3892/etm.2017.4879.
Woolf, Kathleen, and Melinda M. Manore. “B-Vitamins and Exercise: Does Exercise Alter Requirements?” International Journal of Sport Nutrition and Exercise Metabolism, vol. 16, no. 5, 2006, pp. 453–484, doi:10.1123/ijsnem.16.5.453.
Lu, Yao, et al. “Effects of Rhodiola Rosea Supplementation on Exercise and Sport: A Systematic Review.” Frontiers in Nutrition, vol. 9, 2022, doi:10.3389/fnut.2022.856287.
Malanga, Gabriela, et al. “New Insights on Dimethylaminoethanol (DMAE) Features as a Free Radical Scavenger.” Drug Metabolism Letters, vol. 6, no. 1, 2012, pp. 54–59, doi:10.2174/187231212800229282.
Avraham, Y., et al. “Tyrosine Improves Appetite, Cognition, and Exercise Tolerance in Activity Anorexia.” Medicine and Science in Sports and Exercise, vol. 33, no. 12, 2001, pp. 2104–2110, doi:10.1097/00005768-200112000-00020.
Trexler, Eric T., et al. “International Society of Sports Nutrition Position Stand: Beta-Alanine.” Journal of the International Society of Sports Nutrition, vol. 12, no. 1, 2015, doi:10.1186/s12970-015-0090-y.
Gough, Lewis A., et al. “A Critical Review of Citrulline Malate Supplementation and Exercise Performance.” European Journal of Applied Physiology, vol. 121, no. 12, 2021, pp. 3283–3295, doi:10.1007/s00421-021-04774-6.
Chen, Qi, et al. “The Dose Response of Taurine on Aerobic and Strength Exercises: A Systematic Review.” Frontiers in Physiology, vol. 12, 2021, p. 700352, doi:10.3389/fphys.2021.700352.
Wankhede, Sachin, et al. “Examining the Effect of Withania Somnifera Supplementation on Muscle Strength and Recovery: A Randomized Controlled Trial.” Journal of the International Society of Sports Nutrition, vol. 12, no. 1, 2015, doi:10.1186/s12970-015-0104-9.
Srivastava, Shalini, et al. “A Randomized Placebo Controlled Clinical Trial Demonstrating Safety & Efficacy of EnXtra® in Healthy Adults.” Journal of the American College of Nutrition, vol. 40, no. 3, 2021, pp. 224–236, doi:10.1080/07315724.2020.1753129.
Brianna gave Crazy Nutrition 5 stars. Check out the full review… (2024, August 12). Trustpilot. https://www.trustpilot.com/reviews/66ba65067e31c0864f10b838
Tyraan gave Crazy Nutrition 4 stars. Check out the full review… (2022, August 22). Trustpilot. https://www.trustpilot.com/reviews/630351baab7eb0e73ef5397e
Wu, Shih-Hao, et al. “Creatine Supplementation for Muscle Growth: A Scoping Review of Randomized Clinical Trials from 2012 to 2021.” Nutrients, vol. 14, no. 6, 2022, p. 1255, doi:10.3390/nu14061255.
Reddit – Dive into anything. (2024). Reddit.com. https://www.reddit.com/r/weightlossdiets/comments/1foyug2/black_wolf_reviews_for_2024_is_it_legit/
Cholewa, Jason M., et al. “Effects of Betaine on Body Composition, Performance, and Homocysteine Thiolactone.” Journal of the International Society of Sports Nutrition, vol. 10, no. 1, 2013, p. 39, doi:10.1186/1550-2783-10-39.
Valenzuela, Pedro L., et al. “Supplements with Purported Effects on Muscle Mass and Strength.” European Journal of Nutrition, vol. 58, no. 8, 2019, pp. 2983–3008, doi:10.1007/s00394-018-1882-z.
Kim, Jisu, et al. “Piperine Enhances Carbohydrate/Fat Metabolism in Skeletal Muscle during Acute Exercise in Mice.” Nutrition & Metabolism, vol. 14, no. 1, 2017, doi:10.1186/s12986-017-0194-2.
Koozehchian, Majid S., et al. “Effects of Nine Weeks L-Carnitine Supplementation on Exercise Performance, Anaerobic Power, and Exercise-Induced Oxidative Stress in Resistance-Trained Males.” Journal of Exercise Nutrition & Biochemistry, vol. 22, no. 4, 2018, pp. 7–19, doi:10.20463/jenb.2018.0026.
R/Preworkoutsupplements on Reddit: Anyone Have Experience with Transparent Labs’ Lean? Been Using Bulk and Love It but Want to Cut., www.reddit.com/r/Preworkoutsupplements/comments/1fk7tya/anyone_have_experience_with_transparent_labs_lean/. Accessed 3 Mar. 2025.
CDC. (2024, April 5). Effects of Sodium and Potassium. Salt. https://www.cdc.gov/salt/sodium-potassium-health/index.html
R/Syktohealth on Reddit: My Review of Performance Lab Pre Lab Pro: Is It Worth a Try?, www.reddit.com/r/Syktohealth/comments/1frb2ez/my_review_of_performance_lab_pre_lab_pro_is_it/. Accessed 4 Mar. 2025.
Mansoori, S., Ho, M. Y., Ng, K. K., & Cheng, K. K. (2024). Branched‐chain amino acid metabolism: Pathophysiological mechanism and therapeutic intervention in metabolic diseases. Obesity Reviews. https://doi.org/10.1111/obr.13856
Joe Escamilla gave Sculptnation 5 stars. Check out the full review… (2025, March 4). Trustpilot. https://www.trustpilot.com/reviews/67c64fe7c449637517d02a35
Chris gave Sculptnation 4 stars. Check out the full review… (2025, March). Trustpilot. https://www.trustpilot.com/reviews/67c3638052b0753536d5fd72