Offered by Jacked Factory, NitroSurge is a pre-workout supplement designed to help you have the energy to complete your workout sessions with equal intensity from start to finish. By giving you the energy to tackle high-intensity workouts, it helps you put on muscle in a short time. It contains ingredients that not only help with muscle growth and increased energy but promise laser focus as well. It is also something ‘pump chasers’ will love.

NitroSurge is a pre-workout supplement with ingredients to improve focus, attention, and endurance at the same time. The question is, does it contain ingredients essential for muscle gain, improved recovery, and endless energy? Here is our review to help you decide.

NitroSurge Pros

  • Contains natural ingredients
  • May improve concentration and focus

NitroSurge Cons

  • Contains ineffective, under-dosed ingredients
  • Does nothing to improve endurance
  • Does not have any fat burners
  • May cause several side effects
  • Costs more than other similar supplements
Watchdog Rejected



What You Need To Know About NitroSurge

NitroSurge is a pre-workout supplement designed for strength, energy, and pumps. This maximum-strength pre-workout supplement delivers everything you require to push hard in the gym and get ‘next-level results’. Its regular intake promises a clear surge in gains, energy, and focus. You will experience powerful pumps as well. It uses a combination of ingredients that increase nitric-oxide production. With increased NO levels and improved blood flow to the muscles, you will notice a considerable increase in muscle mass in a short time. Interestingly, it contains ingredients, such as beta-alanine, citrulline, caffeine, and betaine anhydrous that promote fat loss as well. It certainly makes big promises, but the problem is that most of its ingredients lack scientific evidence for support.

What Are The Side Effects Of NitroSurge?

Quite like all pre-workout supplements, it is not going to suit everyone. The presence of stimulants makes it a less favorable choice for many people. It may increase your risk of experiencing side effects, such as increased heart rate, headaches, high blood pressure, sleeping difficulties, and jitteriness. Refer to our “Side Effects” section to learn more.

How Much Does NitroSurge Cost?

You have to pay $24.99 to order one tub of NitroSurge, which contains 30 servings.

Our Verdict On NitroSurge

NitroSurge is geared towards bodybuilders who want to power up their workout sessions. It is supposed to make your workouts easier, but unfortunately, it does nothing to increase endurance, energy, or weight loss. It contains L-citrulline that may help increase recovery, but you need to take it in higher doses. Caffeine may improve your performance to a certain extent, but your body will soon get used to it and make NitroSurge quite ineffective. You may even develop several side effects when increasing your caffeine intake. L-Theanine, betaine anhydrous, and BioPerine are not going to do much either. It is worth mentioning that NitroSurge is quite expensive for a supplement that contains ineffective, under-dosed ingredients. Therefore, you should look for something better.

Overall, we do not recommend NitroSurge to our readers!

NitroSurge Review

NitroSurge is a pre-workout supplement geared towards people who want to take their weight training to the next level. It claims to improve energy production, reduce muscle soreness, and help you gain muscle quickly. Unfortunately, the ingredients it contains are either under-dosed or do not have enough scientific evidence to support their use.

You will find L-citrulline in NitroSurge, which is supposed to help by improving muscle recovery. It improves blood circulation by relaxing blood vessels. Studies show that it may be useful for people suffering from hypertension, erectile dysfunction, or diabetes. However, you may not experience any real benefits in terms of muscle gain and bodybuilding. Supplement manufacturers claim that L-citrulline may improve energy and endurance, but you will not find enough scientific evidence in support of these claims.

It is worth mentioning that some studies have highlighted positive benefits of L-citrulline, but they have used very large doses of L-citrulline. For instance:

  • In an incline walking test until failure in otherwise healthy persons, 3 or 9g citrulline (acutely or over 24 hours, respectively) appeared to actually reduce time to exhaustion (0.8%, a clinically irrelevant degree) and suppressed the exercise-induced increase in insulin. Other biomarkers tested were unaltered, although heart rate trended to decrease with 3g citrulline.

Some other studies have found that large doses of L-citrulline may increase the levels of L-arginine, which in turn may improve Nitric Oxide synthesis and increase endurance. For instance:

  • A double-blind randomized placebo-controlled 2-way crossover study was employed. Twenty-two trained males consumed 2.4 g/day of L-citrulline or placebo orally for 7 days. On Day 8 they took 2.4 g of L-citrulline or placebo 1 h before a 4-km cycling time trial. Time taken to complete the 4 km cycle, along with power output/VO2 ratio (PO/VO2), plasma nitrite and nitrate (NOx) and amino acid levels, and visual analog scale (VAS) scores, was evaluated. L-Citrulline supplementation significantly increased plasma L-arginine levels and reduced completion time by 1.5 % (p < 0.05) compared with placebo. Moreover, L-citrulline significantly improved subjective feelings of muscle fatigue and concentration immediately after exercise. Source

For advanced bodybuilders, it is important to increase the dose up to 8g.

  • Supplementation with 8g citrulline (as malate, with 10g sugar that was also used in placebo condition) during a weight lifting protocol (perform as many reps as possible until fatigue for multiple sets) noted that citrulline was able to delay fatigue and promote more reps performed per set for all sets except the first two and reduced post-workout muscle soreness. Source

You are going to get 2g of L-citrulline in each serving of NitroSurge, so do not expect much from this.

NitroSurge Facts

  • 30 servings per container
  • Natural ingredients

You will also get 1.6g of beta-alanine from each serving of NitroSurge. Again, it is supposed to improve endurance, but scientific studies do not support the claim. Some preliminary evidence suggests that beta-alanine improve endurance a bit, but it is going to help you perform a couple of additional reps only. The problem is that whatever little benefits you get from beta-alanine are highly dose-dependent – you need to take more than 5g a day but you get no more than 1.6g from NitroSurge.

  • 5 g/day for 7 weeks improved the performance of elite rowers on all-out 2-km time trials. Source

Some supplement manufacturers say that beta-alanine helps by increasing testosterone levels, but that is not true.

  • 4.8 g/day for 30 days failed to alter the hormonal responses to exercise, despite an increase in work volume and power output. Source

How to Take NitroSurge

Here is what the official site says about taking NitroSurge:

  • Regular Directions: To asses your tolerance take one scoop of Nitrosurge with 8-10 ounces of water 25-35 minutes before working out. If you experience any undesirable effects, stop use immediately and consult with your doctor.
  • Maximum Dose Directions: Mix 2 scoops of Nitrosurge with 12-20 ounces of water 25-35 minutes before working out.

NitroSurge contains stimulants as well. Its caffeine content may help improve concentration and focus to a certain extent. However, not everyone is going to experience these benefits. Many studies have failed to observe any change in endurance and performance after caffeine ingestion. Other studies have noticed insignificant changes in endurance. For instance:

  • Caffeine at doses of 3 mg/kg bw (equivalent to 210 mg for a 70-kg adult) ingested about one hour prior to endurance exercise appear to induce only a modest increase in body temperature compared to placebo. The Panel also notes that higher doses of caffeine (6 mg/kg bw 1569 equivalent to 420 mg for a 70-kg adult) ingested about one hour prior to prolonged endurance exercise in a hot environment do not affect body temperature or hydration status beyond what could be expected from the testing conditions.

Similarly, there is weak evidence that caffeine can improve recovery and reduce muscle soreness. The truth is that it only masks the signs of fatigue by stimulating your central nervous system, but it does nothing to increase energy production.

  • Muscle soreness during exercise. Evidence on the effect of caffeine for muscle soreness during exercise is inconsistent. It seems that taking moderate doses of caffeine (10 mg/kg) can reduce muscle pain during exercise, while lower doses may not have this effect.

It is important to point out that most benefits of caffeine are for those who do not already have it in their diet. If you have been taking a stimulant-based pre-workout that contains a large dose of caffeine, there is no point in switching to NitroSurge because it is not going to make any difference. Your body gets used to the amount of caffeine you are taking, so you have to increase the dose to experience the same benefits. Increasing the dose is not a good idea because it can cause several side effects and even cause withdrawal effects as well.

Another problem with caffeine is that it acts as a diuretic and cause several problems. For instance:

  • Some research has shown that caffeine intake can also affect our fluid balance. In one study, 12 caffeine consumers were told to abstain from caffeine for five days and were then given 642 mg of caffeine in the form of coffee. Their urine output increased when given the caffeine.

To counteract the negative effects of caffeine, many supplement manufacturers include L-Theanine in the blend but that does not make a great difference.

  • In a 2011 study, researchers sought to determine L-theanine’s effect on attention and reaction time. The study concluded that participants experienced better attention and reaction time, but that “no significant differences were noticed among subjects with a minimal anxiety propensity.

Some evidence suggests that L-Theanine may improve serotonin levels and elevate your mood, but it is not going to do much in terms of muscle gain or improved endurance.

NitroSurge Concerns:

  • Under-dosed ingredients
  • Possibly ineffective for most
  • No real fat burner included
  • Not effective for brain health
  • Possible side effects
  • Quite expensive

There is also betaine anhydrous in NitroSurge, which does nothing special to improve your gains. Some studies show that it may improve brain health a little, but you are not going to notice any significant benefits. In most cases, it is included in a blend to make to look impressive, but it really does nothing to improve the efficacy of NitroSurge. The same is the case with BioPerine, which is essentially black pepper extract. It is supposed to increase thermogenesis, which in turn is likely to promote weight loss. There is insufficient evidence to support this claim – some preliminary research has found its positive effects but you need to take it in doses much higher than 2.5mg that you get from each serving of NitroSurge.

The fact of the matter is that NitroSurge contains some popular ingredients, but it really does nothing to improve your energy, endurance, or stamina. There are no real fat burners included in the blend, so you are not going to notice any change in your weight either. The price of this supplement is on the higher side as well. Overall, you will be much better off staying away from NitroSurge. Pay attention to your diet and look for natural ways to increase energy and improve gains!

What Does NitroSurge Claim To Do?

NitroSurge is designed to fuel your workout sessions. It contains ingredients that promise great results. Here are some of its claimed benefits:

  • Improves your energy levels
  • Improves your focus and concentration
  • Promotes weight loss
  • Helps you gain lean muscle mass
  • Accelerates recovery
  • Reduces muscle soreness

Does NitroSurge Work?

NitroSurge is a bodybuilding supplement designed to power up your training sessions. It certainly includes some good ingredients but most of them are ineffective. NitroSurge provides you with L-citrulline, which is supposed to relax blood vessels and improve nitric oxide synthesis. Studies do not support these claims. Some evidence is there to support the use of L-citrulline, but those studies have used very large doses and you do not get enough from each serving of NitroSurge. Caffeine found in NitroSurge may improve concentration and focus to a certain extent, but you may also have to deal with several side effects. Caffeine is a diuretic that can also increase your risk of becoming dehydrated. Severe mood swings can also cause problems. L-Theanine is there in the blend, but it does nothing to reduce the negative effects of caffeine. Other ingredients such as betaine anhydrous and BioPerine do not make a huge difference either. Therefore, it is better to avoid NitroSurge and look for a natural way to fuel your workout sessions.

What Are The Ingredients of NitroSurge?

Serving size is equal to 1 scoop (8g).

  • L-Citrulline 2g
  • Beta-Alanine 1.6g
  • Betaine Anhydrous 1.25g
  • Caffeine Anhydrous 180mg
  • L-Theanine 90mg
  • Hordenine HCl 25mg
  • Black Pepper Fruit Extract BioPerine 2.5mg

The other ingredients are mostly natural and artificial flavors and sweeteners. While the product does have the sweeteners sucralose and acesulfame potassium, which are controversial in some circles, the coloring is natural and made from fruit and vegetable juice.

Does NitroSurge Have Any Side Effects?

NitroSurge contains a variety of ingredients and it is always possible to develop some adverse reactions when taking the supplement. L-citrulline can cause gastrointestinal side effects, and so can beta-alanine. You will also get a large enough dose of caffeine to cause side effects, such as increased heart rate, high blood pressure, insomnia, jitteriness, and severe mood swings. You may also develop digestive issues when taking caffeine in larger doses. Beta-alanine can also cause digestive issues in larger doses – it can also cause problems like flushing and tingling. L-Theanine is also responsible for gastrointestinal side effects and it can also cause problems like dizziness and headaches. It is important to avoid taking NitroSurge when you have any pre-existing medical condition.

Are There Any Customer Reviews For NitroSurge?

NitroSurge claims to help you approach your workouts with more energy, but it seems that it fails to produce any results. Here are some customer reviews to help you understand why it may not be a great choice for you:

Left me with a chemical hangover or something of the sort. Not sure how to describe it. I took it on 3 separate occasions and each time the next day I woke up feeling hungover. It definitely gave me an energy boost pre-work out. I didn’t drink alcohol on any of those nights and made sure to drink plenty of fluids. I gave the rest to a friend and he didn’t have any side effects so it must be something with this product and me. I gave a 3 because my friend loves it but it didn’t mix well with me. Not sure what it is that is in these products but I tried another brand and had the same side effects so something in these products does not mix well with my body

It did nothing!!!! ….. I finished it last month and I’m still waiting to feel something, anything.

I tried one scoop and nothing. Second day I tried 2 scoops and still nothing. Back to 2 cups of strong black coffee which always works.

I ordered the cherry lime aid flavor with the prospect of trying something new and immediately regretted it upon trying it. I can’t speak for the other flavors, but the cherry lime-aid is more bitter than that step mom you never liked, and is almost like drinking sand. I also have a blender bottle, and that doesn’t help. For the price, it’ll get you by, but I wouldn’t willingly buy this product again.

Does NitroSurge Offer a Money-Back Guarantee?

NitroSurge comes with a money-back guarantee, but you have to go through a tiresome process to get a refund.

Where Can I Buy NitroSurge?

NitroSurge is available through the official website, or you can order through several third-party retailers as well.

Summary: NitroSurge


1.9 out of 5
NitroSurge Rating

The Muscle Watchdog does not recommend NitroSurge.

  • Effectiveness
  • Safety
  • Price / Guarantee

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Disclaimer: Our reviews and investigations are based on extensive research from the information publicly available to us and consumers at the time of first publishing the post. Information is based on our personal opinion and whilst we endeavour to ensure information is up-to-date, manufacturers do from time to time change their products and future research may disagree with our findings. If you feel any of the information is inaccurate, please contact us and we will review the information provided.

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