Nitro XX
  • Editor Rating
  • Rated 2.5 stars
$32.92 to $91.14
  • 40%

  • Nitro XX
  • Reviewed by:
  • Published on:
  • Last modified: June 3, 2020
  • Overall
    Editor: 50%
  • Effectiveness
    Editor: 50%
  • Speed of Results
    Editor: 50%
  • Sustaining Results
    Editor: 50%
  • Safety
    Editor: 50%
  • Value
    Editor: 50%

What Is Nitro XX?

Nitro XX is a nitric oxide supplement specifically designed to provide a physically active man with the nutrients he needs to sculpt a perfect body. An important part of any exercise regimen is proper nutrition and oxygenation. It can give exactly what you need to improve your performance and increase your recovery time. And it can do so without the use of any fabricated chemicals- the formula includes only 100% all-natural ingredients.

Nitro XX is designed to let you get more out of each workout by boosting nutrient absorption, enhancing circulation, and increasing your body’s natural nitric oxide production. Nitric oxide is essential for good blood flow and rapid distribution of oxygen. It allows you to get the most out of your workouts by delaying the onset of muscle fatigue and diminishing the build-up of lactic acid.

By giving your muscles the nutrients they crave, the tissue will recover faster- allowing you to return to the gym sooner. Additionally, with increased blood flow and nutrients, you will find that you are able to experience bigger, more intense pumps. Yet for some people, simply improving muscle performance is not enough to get chiseled abs- fat deposits need to be shed, too. That is why the supplement includes natural ingredients that burn away fat and prevent your body from storing more.



Nitro XX is manufactured by Crossfire Nutrition LLC., an American company based out of Georgia. The company has stayed on the cutting edge of the research and development of new nutritional supplements, particularly those involving with amino acids, nucleotides, and essential nutrients. As of 2016, the Nitro XX supplement is their biggest seller, and sells to customers all over the world.


How Nitro XX Works?

Nitro XX contains a number of ingredients to help you get the most out of your workout, but its greatest function is to dramatically increase the amount of nitric oxide available for your body to use. Nitric oxide is the key to achieving the ideal masculine physique. The compound increases the amount of blood that flows to tissues, providing more oxygen for working muscles.

This helps your remain energized while you work out and prevents the onset of muscular fatigue inherent in any weight training session. Nitric oxide gives your muscles the oxygen they need and in doing so prevents the buildup of lactic acid. The increased stamina and endurance will enable you to train harder and get bigger pumps. It also increases post-workout recovery rates– allowing for more frequent visits to the gym.

Other ingredients work to augment the nitric oxide by providing essential nutrients for the blood to deliver to your muscles. Anytime you work out vigorously, your body will eventually run out of steam. The supplement gives you more fuel to throw on the fire.

One bottle contains enough pills for a month. Ideally, two pills should be taken every day: one with breakfast, one with lunch. Due to the caffeine component of this supplement, it is not advised that you take it after 3 o’clock in the afternoon or else you may have trouble falling asleep at night. Overdosing on this product could have severe consequences so Crossfire stresses that you should not take more than two pills a day.

In general, it takes two weeks of continued use before you will see results. There are a few things you must do to ensure these results, however. For the best performance, be sure to:

  • Drink a full glass of water each time you consume the supplement;
  • Have a vigorous weight training or cardio workout regimen;
  • Eat plenty of nutritious food;
  • Be 18 years of age or older;
  • Do not smoke;


Ingredients of Nitro XX

Nitro XX is scientifically formulated to help you achieve maximum results. The supplement contains a number of natural ingredients proven to enhance performance and boost muscle growth. However, it should be noted that nowhere on the bottle or website is there a complete list of active ingredients. Nor is there any indication of the dosage amounts for each ingredient.

The most powerful ingredient in Nitro XX is L-Arginine, a α-amino acid. Arginine is an essential amino acid yet is not naturally produced by the human body. It must be absorbed from the consumption of food such as meats, dairy products, granola, nuts, or seeds.

Arginine plays a role in a number of important bodily functions including cell division, immune function, the healing process, and the regulation of hormones. More importantly for someone looking to get ripped, Arginine is a precursor for the synthesis of nitric oxide and is elemental in the repairing of muscle cells. This amino acid is critical to recover quickly and buildup muscle mass. Arginine also discourages the storage of fat.

While L-Arginine works to build muscles, another ingredient in the supplement works to melt away fat: L-Carnitine. This non-essential amino acid is synthesized naturally in the body from lysine and methionine. It has been well known for its health benefits since 1937.

L-Carnitine is responsible for transferring fatty acids to the mitochondrial matrix for the generation of metabolic energy. The uptick in energy helps to reduce fatigue but more importantly, it incinerates fat. With the optimal amount of Carnitine, your body will increase its aerobic capacity, burning more calories and preventing them from being stored as fat. If used along with a vigorous exercise regimen, Carnitine will quickly convert calories to energy and begin to work on the stored fat deposits- ultimately helping you to achieve the slim trim body of your dreams.

This supplement also includes L-Glutamine, one of the 20 amino acids encoded by genetic code. It is also the most abundant amino acid in human blood. Glutamine plays an important role in protein synthesis- the bodily function that is a prerequisite for building of new muscles. Indeed, 61% of a person’s skeletal muscles are made up of Glutamine.

When physically active, the Glutamine is quickly used up and its levels in the blood stream grow depleted. This causes fatigue and decreases strength. Moreover, if Glutamine levels get too low, your body will begin to catabolize your muscles in order to provide Glutamine to more essential organs. This supplement includes Glutamine to enable you to build larger muscles and recover faster.

It also contains a number of herbal ingredients such as Green Tea Extract, which provides caffeine to boost your energy levels and your cognitive functions. The stimulant makes you feel willing to pump one more set because it greatly boosts your body’s production of noradrenaline (a hormone released by the adrenal glands that functions as a neurotransmitter). The noradrenaline also increases the nerve impulses to the muscle fibers.

Another herbal ingredient contained is Yohimbe Bark Extract, derived from an evergreen tree native to Western and Central Africa. The bark contains a chemical called Yohimbine that has been used in traditional medicines for centuries. This natural chemical increases blood flow and nerve impulses. More importantly, it helps to burn fat.

Yohimbine blocks alpha-2 receptors. These receptors are commonly found in the areas of the body most likely to accumulate fat, such as the stomach, the buttock, and the thighs. By blocking these receptors, Yohimbine stimulates lipolysis- the release of fatty acids into the blood stream. The fatty acids are then quickly oxidized and converted into energy for your body to use to maintain the high level of physical activity you are demanding of it.

Finally, the supplement contains multiple vitamins and minerals essential for optimal bodily function. One of these is Chromium, a mineral that controls your insulin levels. Chromium is a metallic element and one of the ‘trace elements’ required by the body. The mineral stimulates the sensitivity of insulin receptors and regulates the glucose level in the blood.

By helping your body to make better use of the insulin it has, it suppresses the desire for carbohydrates and sugars. As anyone who as ever dieted knows, it is just these sorts of cravings that can ruin your chances of achieving your fitness goals. Chromium also increases energy levels and boosts athletic performance.

The supplement contains the mineral Magnesium, an element essential to the basic nucleic acid chemistry of life. Over 325 enzymes require Magnesium to function, including those enzymes that are responsible for synthesizing fat, protein, and nucleic acids; muscular contraction and relaxation; cardiac activity; and neurological activity. It can be found in nuts, cereals, spices, and many dark leafy green vegetables

The human body should contain about two ounces of Magnesium in the form of Magnesium ions, and approximately 25% of this is found in muscle tissues and 60% is found bones. Although this may seem like a very small amount, Magnesium’s role in the body is pivotal. The mineral is essential for anaerobic and aerobic energy production.

When you engage in strenuous physical activity, the rate at which your body goes through ATP energy is astonishing- as much as 15 kilograms of ATP per hour can be broken down and consumed by your muscle tissues and organs. In order to maintain this high level of exercise, your body is going to need a boost in its supplies of Magnesium. Low levels of Magnesium can result in hypertension.



Incorporating Nitro XX into your fitness plan can afford you many advantages. First and foremost, the supplement is 100% all natural and rarely if ever produces any negative side effects. Furthermore, it empowers you to give it your all every time you enter the gym. By building up your body’s stamina and endurance levels, the supplement enables you to workout harder for longer periods of time.

Perhaps other supplements or steroids could also encourage perseverance. Yet, only Nitro XX compliments this intensification of activity with the necessary augmentation of the recovery process. Many athletes do not appreciate how important a rest period is to building muscles. Every time you work out, you are essentially breaking down your muscles piece by piece. This is the only way for them to be rebuilt stronger and larger than ever.

But if you don’t wait for your muscles to heal, you dramatically increase your chances of injury. By boosting your nitric oxide levels, this supplement floods your muscles with oxygen and nutrients. This prevents the painful buildup of lactic acid and helps muscles recover faster.

In addition, it helps to convert consumed calories as well as stored fat into useable energy. Unlike many diet pills, which simply dissolve or eliminate fat, this supplement encourages your body to synthesize the fat and use it as ATP energy. This two-pronged strategy of building muscles and burning fat is a surefire way to develop the perfect masculine physique. And if it doesn’t, there is a 90-day money back guarantee.

Other benefits include:

  1. Improved blood circulation;
  2. Increases muscle definition;
  3. Enhances metabolism;
  4. Diet-friendly (it contains no calories, sugars, or carbohydrates);



Crossfire is certified as a secure site. The company is highly regarded in the supplement industry, nonetheless their latest product, Nitro XX, has yet to receive widespread acclaim. Additionally, because it is a supplement made of only all-natural ingredients, it has not been certified by the United States Federal Drug Administration. The FDA focuses primarily on drugs with active chemical ingredients.



The reviews of Nitro XX are overwhelmingly positive. Coming from both first-time supplemental users as well as those who had almost given up hope of ever finding a pill that worked, the supplement receives a great deal of applause. Indeed one reviewer even went so far as to say that Nitro XX “changed my life to the best”. Another described it as “the key to a healthy and muscular body”.


Awards & Media Coverage

A relatively new product in the global dietary supplement market, the supplment has not yet received any awards or widespread media coverage. However, given time, the supplement is certain to grow in popularity and gain the attention and respect it deserves. Surely, with all of the glowering reviews on the product, an award is just around the corner.


Money-back Guarantee

Crossfire is so confident that you will love Nitro XX that they offer a 90-day risk free money back guarantee- an unheard of warranty in the supplement industry. If you are unsatisfied with the product, simply call Crossfire’s customer service office and request a refund. You will be provided with a unique Authorization Number as well as well as the address to the fulfillment center. All your money will be put back on your credit card, whether you return the bottles opened or unopened.

However, do note that you will be responsible for any shipping and handling fees involved with the return. Additionally, the 90 days starts when your order is placed, not when you receive the package. To receive a full reimbursement, the return must arrive at the fulfillment center before the end of the 90-day period.



You can order Nitro XX from anywhere in the world. The package will ship within 24 hours of order placement. Shipping and handling fees are not included in the website’s prices and are determined by your location. The website does not mention whether or not the packaging is discreet.


Customer Support

Crossfire is a well-established company that has produced nearly 50 dietary supplements over the past 20 years. No company could have maintained such a record for excellence without a high-quality customer service team.

If you have any questions or concerns, Crossfire encourages you to call its Customer Support Department. You can also call toll free. If you are simply looking for more information about the supplement or any of Crossfire’s other products, feel free to email Customer Support.

The Customer Service hotline of Crossfire is open Monday through Friday, 9am to 5pm Pacific Standard Time. All email inquiries will be answered during this time. Typically, someone will respond to your email within one to two business days.


Safe & Secure Checkout

Crossfire recognizes that it can be worrisome to order products online. That is why the company strives so hard to set your mind at ease. All personal and financial information is kept in a secure network that is only accessible by a limited number of people and is secured with multiple layers of encryption. Moreover, all sensitive information is encrypted using Secure Socket Layer (SSL) technology – the gold standard of Internet shopping.

In their Terms of Use, Crossfire promises never to sell, trade, or transfer your personal information to a third party (unless ordered to do so by governmental authorities). Non-personal information will be shared with third parties for purposes including marketing, advertising, and website improvement.


Nitro XX Pricing & Free Trial

You can try Nitro XX risk free thanks to their incredible 90-day money back guarantee. If you are not completely satisfied with the product, return the bottles opened or unopened and receive a full refund. It is available for purchase in three different packages:

  • Buy one bottle for £59.99
  • Buy two bottles and get one free for £99.99
  • Buy three bottles and get two free for £129.99

Pricing does not include shipping and handling fees. Each bottle contains a 30-day supply. No matter which option you choose, you will never be enrolled in a subscription program that automatically reorders a bottle every month (the hidden snare set by many other supplement producers).


  • The product only uses all natural ingredients.
  • It builds muscle and burns fat.
  • There is a 90-day money back guarantee.


  • The full list of ingredients and dosages are not given.
  • Overdose on this product is possible.
  • It is not approved by the FDA.

Nitro XX

Summary: Nitro XX is a bodybuilding dietary supplement made of 100% all-natural ingredients. It is specifically designed to boost the amount of nitric oxide available for your body to use. It helps you build muscle and burn fat to better achieve the shredded body. Additionally, this supplement improves the rate of recovery for muscle tissue so that you can return to the gym sooner. Best of all, you can try Nitro XX risk-free thanks to the 90-day money back guarantee.

$32.92 to $91.14
RatingRated 2.5 stars

Allen Hicks is a professional bodybuilding coach and author. By using his experience, knowledge and understanding of all the intricacies regarding the fitness and bodybuilding industry, this websites delivers detailed reviews for every new supplement on the market. As an author, he may receive some small compensation for some of them, however we guarantee the neutrality regarding the evaluating of each of the products and the factuality of the information.