N33 Nitric Oxide
  • Editor Rating
  • Rated 2.5 stars
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  • N33 Nitric Oxide
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  • Last modified: May 4, 2016
  • Overall
    Editor: 45%
  • Effectiveness
    Editor: 46%
  • Speed of Results
    Editor: 47%
  • Sustaining Results
    Editor: 48%
  • Safety
    Editor: 46%
  • Value
    Editor: 49%

What Is N33 Nitric Oxide?

N33 Nitric Oxide is a health supplement designed to help men strengthen their bodies. By making use of it, users will reportedly be able to boost their muscle strength, raise endurance, and increase protein output. As a result, the body will lose various wastes that prevent muscle development – and in turn, its user will develop strong, lean muscles. Coupled with proper dieting and exercise, those that give the supplement a try can potentially sculpt the physique they’ve always wanted.

That claim works under the assumption that it will always yield successful results. Bodybuilders have every right to be suspicious, considering that the supplement sounds like a miracle drug that’s too good to be true. Still, it has its share of advantages; its basis in science and health means that it stands a chance at letting its users make legitimate gains. On top of that, its lack of foreign chemicals makes it safe to ingest in pursuit of fitness. While there are factors to be wary of along the way, the supplement still has some points in its favor.



N33 Nitric Oxide is produced by Cellista Labs, a nutritional supplement manufacturer. The company’s main corporate offices reside in Las Vegas, Nevada, with contact available via email or a toll-free call. Reportedly, Cellista Labs has made a business out of selling pills for dieting and supplements for bodybuilders online. Spokespersons for the company have also noted that their products use all-natural ingredients; based on its listed supplement facts, this one is no exception.

Although Cellista Labs has made a name for itself by selling various supplements, the company has also attracted negative attention. Its other products have had customers claiming that they don’t work; when coupled with high and rapid prices, some have accused Cellista Labs of running scams. N33 Nitric Oxide isn’t among one of the products being lambasted, and the credits listed on the supplement’s site suggest that Cellista Labs has managed to deflect controversy. That could change at any time, depending on how widespread its usage becomes. On the other hand, this product has grounding and benefits that offer some legitimacy.


How N33 Nitric Oxide Works?

Users must follow three basic steps to get the most out of the supplement. To begin, bodybuilders should take two pills before starting the usual workout. After that, they must follow that program; the pills taken prior to each workout should lead to improvements in the gym as well as the body. Sticking to the plan will boost the user’s endurance, letting them exercise longer and harder. As a result, even a normal workout with the supplement can become leagues better than a workout without it.

True to its name, N33 Nitric Oxide makes use of nitric oxide to upgrade its user’s body. Though the supplement itself doesn’t contain nitric oxide – by virtue of it being a gaseous molecule – it makes use of amino acids such as Arginine, which in turn tells the body to create more nitric oxide. As a result, the blood vessels dilate and let blood flow easily to the muscles; nutrients and oxygen alike are transported in greater amounts, which let bodybuilders exercise more without getting tired along the way. While it isn’t a replacement for diet and exercise, it’s still a means to increase the gains from a session.


Ingredients of N33 Nitric Oxide

The supplement makes use of natural ingredients instead of hazardous chemicals. In fact, several of the key ingredients are basically amino acids. Arginine is well among them, but it doesn’t stand alone; its label reveals that it contains A-AKG, A-KIC, and GKG, alongside other elements such as Magnesium Stearate, Di-calcium Phosphate, Cellulose, and Stearic acid. It’s worth noting that even if N33 Nitric Oxide has its share of amino acids, they still come from natural sources – including Oat Straw Extract, Velvet Bean, and American Ginseng.

The sticking point isn’t necessarily what’s in it, but rather how much is in it. Studies have shown that increased nitric oxide levels can help a bodybuilder with his workout and performance, thanks in part to the Arginine present. However, the supplement appears to only contain 2.4 grams of that amino acid, and potentially not even that. Bodybuilders have taken three to six grams of Arginine, which means it would take a significant dosage to yield effects. Given the threat of overdosing – which can cause diarrhea and nausea, even with amino acids – it’s best to evaluate how much trust you’re willing to give.



Though it promises a perfect physique, N33 Nitric Oxide brings with it a host of proposed gains. The supplement is supposed to increase energy levels and offer a thermogenic boost – a way to burn fat by increasing metabolism. Moreover, it claims that bodybuilders who use it will enjoy greater mental clarity, alongside greater focus throughout their day. It seems dubious for a supplement to enhance the mind as well as the body, though links between mental health and exercise levels lend some credibility.

Even so, it offers more reasonable advantages – thanks in part to its all-natural status. Because of its reliance on amino acids, the supplement – if taken in moderation – doesn’t have any lingering side effects, and can slip into any diet or workout plan without a hassle. If thought of as a way to extend workout sessions, then a bodybuilder could link any gains from a gym session to its proper use. With the exception of taking pills, the only extra effort needed would be to raise the intensity of a workout over time. Essentially, the extra energy would take any workout to the next level – and that in turn would yield results.



N33 Nitric Oxide has yet to be evaluated by the U.S. Food and Drug Administration, but it may not have to. Since the supplement’s contents are natural – and based on amino acids – it can ship even without the blessing of the FDA. However, even though N33 Nitric Oxide is legal by default simply by being a supplement, there are still other organizations that could lend credibility. The problem is that those organizations haven’t registered said supplement, or its manufacturer Cellista Labs.

While N33 Nitric Oxide is legal right now, the FDA has pushed for Good Manufacturing Practices certification by the National Nutritional Foods Association. More than 8,000 manufacturers of dietary supplements and other health-related products have already been represented by the NNFA, with GMP certification to show for it prior to legal enforcement; Cellista Labs isn’t one of those manufacturers. Similarly, NSF International – formerly the National Sanitation Foundation – has offered no certification for the supplement or the company. It’s possible that N33 Nitric Oxide and Cellista Labs simply aren’t listed yet. Even so, the fact that the company wouldn’t brag about its credentials doesn’t inspire confidence.



N33 Nitric Oxide is said to help its users develop stronger muscles and increase energy levels, with the testimonials on the main site to show for it. Glowing reports from three separate bodybuilders have declared that the supplement improves their body, their energy, and their confidence – though there’s no guarantee that their words are legitimate. Evidence elsewhere suggests that, while the supplement has its merits, it likely won’t provide the miraculous results its users hope for. Researchers have taken issue with the amount of Arginine contained, especially with the knowledge that – in extreme cases – it’s possible to take as much as ten concentrated grams of the amino acid for an effect, compared to the supplement’s 2.4 grams.

That alone suggests that it isn’t worth the cost, but there may be a glimmer of hope. The supplement can potentially work, because animals have seen gains in testing. Likewise, doctors have used the principles behind it to improve the blood flow – and the exercise performance – of ailing patients. Moreover, the studies conducted have implied that, while older or occasional athletes can have their endurance raised, there’s no guarantee that regular athletes or bodybuilders can enjoy the same gains. Put simply, N33 Nitric Oxide alone probably isn’t enough to ensure a sculpted physique; with that said, it can help users get closer to it depending on their circumstances.


Awards & Media Coverage

The minds behind N33 Nitric Oxide are quick to list its accolades on the main website. According to the emblems plastered throughout, the product holds the distinction of being the Best New Product of 2014, the Best Choice, Best, Price, and Best Quality, and promises 100% Satisfaction Guaranteed. Additionally, it’s supposed to be “Industry Acclaimed”, and rated as “the #1 supplement in the U.S.” Despite the lofty claims, there’s little evidence to back them up; it may have been rated the Best New Product of 2014, but by no means does it mention who – if anyone – offered that award.

The site also mentions that it’s appeared among Men’s Fitness, Muscle and Fitness, and Men’s Health. That’s true, but only in a loose sense; Muscle and Fitness has talked about the benefits of nitric oxide in the past, but never specifically about N33 Nitric Oxide. Even then, the site suggested that people should wait for more evidence to support its benefits. Men’s Health only mentions nitric oxide in relation to life for 50-year-olds, while Men’s Fitness gives the same focus on the molecule. Though Cellista Labs aims to sell its supplement, there’s no concrete proof that it’s earned an audience – which is worrying for a supplement that’s supposedly #1.


Money-back Guarantee

With so many unknowns circling around the product, it may seem as if a simple order is a mistake in the making. Fortunately, Cellista Labs has offered a satisfaction guarantee, so that customers can save their money. According to the terms and conditions, anyone who isn’t satisfied within the first 14 days of their order can call or email the company to cancel. After that, the user won’t receive any further billing from the company.

However, anyone who wants to take advantage of the guarantee will have to do so within the first 14 days. After that, the company will assume that the supplement has performed as expected and desired. The user will still be responsible for shipments and payments processed, particularly for every 30-day interval following the first shipment. Fortunately, cancellation of the service processes instantly, so the only fee the user will have to pay is the shipping fee. By cooperating with customer service, it’s possible to earn a refund through return shipping.



Orders are processed within three business days, assuming that orders aren’t made on weekends. In turn, shipping time usually ranges from three to five business days from when an order ships out. If for any reason an issue with shipment occurs – such as a delay in delivery – then it’s possible to call the customer care department. From there, the department can help decide what to do next, including an extension of the trial period.

Cellista Labs has a return policy in place for users to ship the supplement back, albeit with a small restocking fee. The company will credit a returned, unopened package, as long as said package has a post mark within 30 days of the order date. Additionally, the package will need an RMA number from customer service to complete the process. Notably, the product can’t be credited for return once 30 days have passed from the original order date. Returns will also only be accepted – and cleared for a refund – if the product is sealed and undamaged.


Customer Support

Cellista Labs has a comitment to its customers, including the requisite customer service. Its representatives are available via phone or email, from nine to six during the weekdays and nine to five on Saturday. However, their offices are closed on Sundays, as well as during major holidays like Thanksgiving, Christmas, and Easter. Though Cellista Labs fields returns of their products, they have a Georgia-based address listed that customers should use.

Ideally, all issues with their products should go through customer service before any other steps are taken. The departments therein can cancel shipments – which by default are set to come automatically alongside required payments. Cancellations and returns are managed not only via those representatives, but also through the confirmation numbers they assign during the process. Cellista Labs recommends keeping those numbers filed, as it makes the process much harder without them. The department can also deal with lost shipments, as long as contact is made within the 14-day trial period.


Safe & Secure Checkout

Much like its customer service, Cellista Labs promises that it values the safety of its customers. Its website is VeriSign Secured, McAfee Secure, and declared hacker safe by ScanAlert, so personal data is kept under watch. Though it does ask for vital information when creating an account, it only does so to deliver products and establish contact with customers; no information is sold, and is managed by the secure Konnektive server. The website also collects navigational information during each visit, but only does so to gauge the effectiveness of the site and services.

Special security measures are also used to protect customers, prospective or not. Cellista Labs makes use of 128-bit Secure Socket Layer technology, which encrypts order information so only the proper channels can access it. By default, a computer will safely communicate with the Konnective server as soon as the checkout begins. In fact, computers that can’t make use of SSL technology won’t even be able to reach that point. Users looking to buy N33 Nitric Oxide can do so securely once they download basic upgrades, so the risk factor is minimized.


N33 Nitric Oxide Pricing & Free Trial

Those that want to try the supplement without a full commitment can do so via a free trial, albeit with some fine print to keep in mind. The initial sample may not technically come with a price tag, but the user will still have to pay a shipping fee of $6.95. Once shipped, the trial period begins; the user will have 14 days to use the supplement as part of their regular diet and exercise. It’s possible to cancel the program at any time during the trial period, as well as waive any future fees. 15 days after ordering a trial, the program – and the payment – begins in earnest.

Even with the free trial in place, users will be charged $79.95 on their credit card preemptively. That payment will go through once the trial expires on day 15, and will continue month after month. A fresh batch of the supplement will go out each time – with enough to supply users for a month – but once shipping and handling are included, users will have to deal with auto-payments upwards of $80 every thirty days. That’s a steep price to pay for a product that might not produce results – and the money spent will rack up automatically unless the user manually cancels the shipments. As such, buyers can try it at their own peril.


  • Its basis on amino acids and natural ingredients makes it a low-risk supplement.
  • If it helps the body gain more nitric oxide, it can enhance workouts – and by proxy, enhance the body.
  • It can slip in and out of any bodybuilder’s diet without issue.


  • The supplement isn’t a replacement for diet and exercise, so strenuous workouts are still a must.
  • Though it has some valuable ingredients, it may not have enough of them to make a difference.
  • Depending on the user’s age, health, and activity, results may vary.

N33 Nitric Oxide

Summary: N33 Nitric Oxide is a supplement to be taken before a bodybuilder’s workout, with the intent to improve performance and ultimately offer stronger muscles. The principle it’s based on – supplying the body with better blood flow – is a sound one, but the supplement might not provide the miraculous results it promises. While there is potential for improvement for those that enjoy intense exercise, the product may ask too much and deliver too little for some.

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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.