Hi-Tech N.O. Overload

Modern bodybuilding supplements aim to support gym workouts in a variety of ways, and one popular way is to find ways of boosting the body’s natural production of Nitric Oxide. Raised NO levels are known to increase the flow of blood to the muscles, helping to boost overall muscular gains.

Below we take an in-depth look into Hi-Tech N.O. Overload, to see whether this product works as advertised.

Hi-Tech N.O. Overload Pros

  • The few customer reviews available are positive
  • Product is relatively cheap

Hi-Tech N.O. Overload Cons

  • Ingredient quantities not listed
  • Impossible to know whether product works well
  • Manufacturer offers no money-back guarantee
Watchdog Rejected

Hi-Tech N.O. Overload


What You Need To Know About Hi-Tech N.O. Overload

Hi-Tech N.O. Overload is a pre-workout that primarily aims to boost the production of Nitric Oxide. It achieves this by providing customers with a source of arginine, as well as a group of ingredients that inhibit an enzyme called arginase. When supplemented together, these ingredients supposedly increase NO production, widen the blood vessels, and improve overall exercise performance.

What Are The Side Effects Of Hi-Tech N.O. Overload?

The full list of potential side effects is quite long, so we recommend checking out the Side Effects tab for the full list.

The most likely side effects that customers might encounter include lowered blood pressure, stomach issues, bloating, jitters, sleeplessness, heart palpitations, and headaches.

How Much Does Hi-Tech N.O. Overload Cost?

N.O. Overload tends to retail for around $29.95 for a pack containing 39 scoops (although the manufacturer’s website sells it for an absurd $49.95). The cheapest prices we found on the Internet were on All Star Health ($20.99) and iHerb ($24.75).

Our Verdict On Hi-Tech N.O. Overload

This product suffers from a serious lack of important information that makes purchasing it very risky. We were only able to find three customer reviews discussing this product on iHerb’s webstore, and the manufacturer has made the unfortunate decision to hide the ingredient quantities used in this product. To top it all, there is no money-back guarantee available to reimburse disappointed customers.

On the face of it, we would guess from the ingredients list that this product should work well to boost Nitric Oxide levels, but likely fails to provide much of a burst of energy (due to its reliance on weak stimulants like theobromine and yerba mate).

Overall, we recommend sticking with more established products backed by real evidence and better reputations.

We do not recommend Hi-Tech N.O. Overload to our readers.

Hi-Tech N.O. Overload Review

Hi-Tech N.O. Overload is a pre-workout supplement that promises to boost exercise performance by increasing Nitric Oxide production. This relatively complex blend utilises dozens of active ingredients to supposedly provide multiple benefits, including shortening exercise recovery periods, boosting energy, inhibiting arginase production, and more.

Hi-Tech N.O. Overload Facts

  • Manufactured by Hi-Tech Pharmaceuticals
  • Contains 310g of powder per tub
  • Nitric Oxide-boosting pre-workout supplement

N.O. Overload is manufactured by Hi-Tech Pharmaceuticals, a US-based supplement store based in the USA. Hi-Tech Pharma (as they are often called) is known mainly for their extraordinary history of litigation, having fought long and protracted legal battles with the FTC, FDA, respected university professors, medical authorities, and rival companies. The company can be contacted via the details supplied on their official website.

How to Take Hi-Tech N.O. Overload

The directions for use are as follows:

  • Recommended Use on Training Days: Once your tolerance has been established, mix 1-3 scoops with 6-18oz of cold water and consume 30-45 minutes before training. Use approximately 6oz of water per 1 scoop of powder.
  • Recommended Use on Non-Training Days: Mix 1 scoop with 6 oz of cold water.

Hi-Tech N.O. Overload Concerns:

  • Ingredient quantities are not listed anywhere on the packaging or website
  • Product may cause side effects
  • Manufacturer does not offer a money-back guarantee

What Does Hi-Tech N.O. Overload Claim To Do?

N.O. Overload is a pre-workout formula, and claims to improve exercise performance in the gym. It supposedly achieves this by providing an energy boost, a “muscle cell volumizing” effect which results in enhanced muscle growth, and a shortened post-workout recovery period.

As the name of the product suggests, it also claims to boost Nitric Oxide production. This mechanism is known to result in vasodilation, which is where the blood vessels can widen and allow more blood to flow to the muscles, thus improving their efficiency in the gym. Unlike other manufacturers, Hi-Tech Pharmaceuticals claim to provide a more reliable NO-boosting mechanism that provides better results than comparable products. Their supposedly superior process works by inhibiting the enzyme arginase, which is known to break down l-arginine (the precursor of NO).

Does Hi-Tech N.O. Overload Work?

Hi-Tech Pharmaceuticals fail to disclose the proper ingredient quantities and there are very few customer reviews, which makes it hard to gauge the effectiveness of this product. On the face of it, the formula uses a good blend of arginine and arginase inhibitors, which should boost NO production and improve muscular performance. There are many filler ingredients however, and the product’s energy boost matrix is surprisingly weak-looking for a Hi-Tech Pharmaceuticals product.

What Are The Ingredients of Hi-Tech N.O. Overload?

The ingredients found in Hi-Tech N.O. Overload are listed below. Unfortunately, the manufacturer fails to provide ingredient quantities for virtually every ingredient, which makes it nearly impossible to estimate how effective the formula is. The quantities listed that are listed are correct for 1 scoop (8g) of powder.

  • Vitamin B6 (Pyridoxine HCl) 10mg (500% DV)
  • Vitamin B12 Matrix (methylcobalamin, cyanocobalamin) 40mcg (666% DV)
  • Sodium 70mg (3% DV)
  • Phosphorus 150mg (15% DV)

Nitric Oxide Blend with Micro-Rx and Extend-Rx Technology

  • L-Arginine AKG
  • Arginine Ethyl Ester Dihydrochloride
  • L-Arginine HCl
  • L-Arginine Malate
  • Glycine-L-Arginine-Alpha-Ketoisocaproic Acid: Arginine is an essential amino acid which is plentiful in foods and can be made by the body. Important for wound healing and circulation, l-arginine is thought to boost the levels of Nitric Oxide in the body. This product also utilises a special form called Arginine AKG, which is essentially just another form of Arginine. The Alpha-Ketoglutarate salt is intended to increase the poor intestinal uptake of normal L-Arginine. Source

Hi-Tech Arginase Inhibitors

  • 2(S)-amino-6-Boronohexanoic Acid (ABH): Studies have shown that the use of ABH inhibits the production of arginase, thus helping to improve blood flow throughout the body. Source
  • S-(2-Boronethyl)-L-Cysteine HCl (BEC): This chemical is known to inhibit the production of arginase. This is in turn is known to effectively increase the production of Nitric Oxide (NO), which will widen the body’s blood vessels and increase the flow of blood to the muscles. Source
  • L-Norvaline: This amino acid is thought to be complementary to l-arginine, as it inhibits arginase and helps to prolong and intensify the effect that arginine has on the body. Source

Hi-Tech Muscle Cell Volumizing and Performance Technology

  • Disodium creatine phosphate tetrahydrate
  • Creatinol-O-Phosphate
  • Creatine Ethyl Ester HCl
  • Creatine Monohydrate
  • Di-Creatine Malate: These ingredients vary slightly, but are all essentially different forms of creatine (some more effective than others). This molecule helps to rapidly produce ATP in the muscles, helping to boost strength and power in the gym. Source
  • Inosine Ethyl Ester HCl: This chemical may be able to help connect healthy nerves to damaged nerve cells, which could be useful for specific injuries. Although it is sold by some on the basis that it improves athletic performance, there is no evidence or reason to think it has this effect whatsoever. Source
  • Adenosine Triphosphate Sodium: ATP is the molecular “carrier” of energy in the muscles. It is not clear whether supplementing it directly can impact the level of ATP in the body. Source
  • Taurine Ethyl Ester HCl: Taurine is an amino acid that helps to build protein. It is not often known why it is so frequently added to energy drinks, although some claim that it helps improve athletic and mental performance. Source
  • Guanidinopropionic acid: This ingredient is an analogue of creatine and works in much the same way.

Thermo-Rx and Hi-Tech Energy Complex

  • Acacia rigidula 98% extract (as Thermo-Rx) (leaves): There is little to no published information about Acacia Rigidula, including a lack of trials that look into the effects of Acacia Rigidula upon weight loss, cognitive function, or any other health benefits. The FDA has recently concluded that Acacia Rigidula falls outside of the definitions of what can be used in a supplement, and has cautioned several companies against using it in their formulas. Acacia Rigidula can also cause a false positive on an amphetamine drug test. Source
  • Yerba Mate Extract: A plant that is typically brewed as a tea, yerba mate is a natural source of caffeine, and has been the subject of several studies on weight loss. Source
  • Theobromine anhydrous: Theobromine is a mild stimulant that is similar to caffeine, but it appears to be much milder than caffeine. Source
  • Quebracho blanco extract (bark): This plant that is sometimes used to treat high blood pressure, asthma, and a variety of other conditions. There is no evidence available to suggest that it does anything at all. Source
  • L-tyrosine ethyl ester HCl: An amino acid that is a building block of protein, this ingredient is found naturally in many foods including meat and dairy products. In existing trials, L-Tyrosine appears to effectively improve cognition and memory during stressful periods. Source
  • Beta-Alanine Ethyl ester HCl: Beta alanine has been repeatedly proven to raise the levels of muscle carnosine in the human body, which has the effect of increasing the amount of work athletes can perform in high-intensity workouts. Its use is accompanied by a distinctive “tingling” sensation in the muscles. Source

Hi-Tech Recovery-Rx

  • L-leucine ethyl ester HCl
  • L-isoleucine ethyl ester HCl
  • L-valine ethyl ester HCl: Branched-chain amino acids are used by the body as a building block of protein, which is what muscle is made from. Supplementing Branch Chain Amino Acids in adequate quantities in combination with muscle-building exercise will help to build muscle mass. It may also help to prevent fatigue in novice athletes. Source
  • L-glutamine ethyl ester HCl: This is an essential amino acid, which is a building block of protein. It is the most abundant free amino acid in the body, and is produced in the muscles and distributed where it is needed via the circulatory system. Supplementation can only help to build muscle in limited circumstances, as (once again) most people enjoy sufficient stocks of glutamine from their regular diet or from protein powders. Source

Does Hi-Tech N.O. Overload Have Any Side Effects?

This product can increase Nitric Oxide levels, and this can, in turn, lower blood pressure; anyone who already has low blood pressure, or who are taking medications that affect blood pressure, should avoid taking supplements that claim to increase NO levels.

L-arginine can cause some side effects including abdominal pain, bloating, diarrhoea, blood abnormalities, airway inflammation, worsening of asthma, and low blood pressure.

The mild stimulant effect created by the year mate and theobromine can cause headaches, an increased heart rate, increased blood pressure, heart palpitations, increased urination, dehydration, jitteriness, dizziness, and insomnia.

Acacia Rigidula is a stimulant, and it can cause increases in blood pressure and heart rate and heart palpitations. It can also cause false positives on drug tests used to detect the presence of amphetamines in the bloodstream.

Quebracho Blanco has sometimes been associated with drooling, headache, sweating, dizziness, stupor, and sleepiness. In large doses, it can cause nausea and vomiting. Although Tyrosine is tolerated generally in very high doses, it can cause some side effects including nausea, headache, fatigue, heartburn, and joint pain.


Not suitable for pregnant or breastfeeding women. Not suitable for anyone under the age of 18. If you are taking any medications or are unsure about the suitability of this supplement for you, consult your doctor before purchase.

Are There Any Customer Reviews For Hi-Tech N.O. Overload?

We weren’t able to find much in the way of customer reviews online; the three comments listed below were pretty much all there was to find. As you can see, the three customers below were satisfied with their purchase, although one negative comment was directed to the odd smell and taste of the powder.

Best pump pre workout ever try give excellent motivation and mood with good vascularity only the taste and smell are not that good but acceptable

This is a decent pump product because it definitely does the trick and is a pretty decent price as well. One thing that I do not like about this is that their are other pump products that contain about the same ingredients but from other brands that are much more popular. Most people would rather get those, but this is good.

Well received and awaiting more cheaper to buy again

Does Hi-Tech N.O. Overload Offer a Money-Back Guarantee?

On the official Hi-Tech Pharmaceuticals website, no mention is made of a money-back guarantee or a returns policy of any kind.

Where Can I Buy Hi-Tech N.O. Overload?

N.O. Overload is available to purchase from a number of online retailers, including All Star Health, iHerb, DPS Nutrition, iSupplements, Best Price Nutrition, and the Hi-Tech Pharmaceuticals website.

Summary: Hi-Tech N.O. Overload

Hi-Tech N.O. Overload

1.3 out of 5
Hi-Tech N.O. Overload Rating

The Muscle Watchdog does not recommend Hi-Tech N.O. Overload.

  • 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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