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Instant Knockout is an ultra-powerful formula consisting of 10 fat burning heavyweights. Exhaustively researched and hand selected, to make THE cutting edge professional fat burner.

A Brief History of Instant Knockout

Instant Knockout is developed by Roar Ambition, a London-based supplement company. They are only available on their official website

The company is eager to say that the product isn’t intended just for men, despite the masculine marketing: “OK, so you could be forgiven for thinking Instant Knockout is a guys only formula. But it’s not.

“It’s a highly-powerful fat burner, plain and simple and it doesn’t matter if you’re male or female, it’s designed to help you get rid of your unsightly, unwanted fat.”

Parker said: “One of the main things we’ve learned is that quality always wins over quantity. Our customers are mainly men aged 21-30, and they’re educated – they are seeking out the latest ingredients and the best formulas. They are not brand loyal; they will research and shop around to get the best products on the market.

“We specialize in burning fat and supporting testosterone – the two key areas that men are most concerned about, to allow them to build muscle and stay lean. We could have expanded our range but playing to our strength allowed us to create two really strong products. We’re always consulting with athletes and nutritionists and looking at the latest research to ensure we’re using the best ingredients. Our formulas are updated every six – 12 months.”

Ingredients - Lets see what each pill has inside of it

Instant Knockout Contains 10 Specially Selected Natural Ingredients. To Help You Finally Win Your War Against Unsightly Fat.

Instant Knockout Supplement Facts
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The absolute essential nutrient in Instant Knockout, green tea extract is your key to seeing better results on your fat burning mission.

  •  This powerhouse addition to your supplement is packed full of bioactive polyphenols called catechins. It also gives you a strong hit of caffeine to help you power through your workouts.
  •  Harnessing the power of these nutrients, green tea extract helps to attack your fat from different angles.
  •  Firstly, it ramps up your metabolism and breaks down stored energy like a sledgehammer to your fat cells. And lastly it elevates your total energy expenditure meaning you’ll burn even more calories throughout the day.
  •  Studies back this up too. One of the most comprehensive reviews of green tea research ever found that not only did the nutrient help with weight loss; but keep it off too. And that was data from across a staggering 11 individual trials[1].
  •  And another study found that this super nutrient broke the ceiling on fat oxidation by elevating fat burning by 16% over a 24-hour period[2].

1. Hursel, R et al. The effects of green tea on weight loss and weight maintenance: a meta-analysis. Int J Obes. 2009; 33(9): 956-61

2. Hursel R et al. The effects of catechin rich teas and caffeine on energy expenditure and fat oxidation: A meta-analysis. Obes. Rev. 2011; 12: e573–e581

This ingredient adds a little spice to your Instant Knockout.

  •  Packed full of vitamin A, C and B6, this nutrient packs a powerful punch. But before you worry about too much spice – don’t worry, we use just enough to make an impact without you even knowing it was there.
  •  The main fat-fighting compound here is capsaicin – a bioactive alkaloid found in the cayenne pepper. It boosts insulin sensitivity helping improve the way your store carbs – by as much as 24% in some studies[3].
  •  Cayenne is also a potent thermogenic – it has the ability to boost your metabolism, leading to more fat burning. Not only that, it also increases energy expenditure and enhances fat oxidation too[4].

3. Ahuja, KD et al. Effects of chili consumption on postprandial glucose, insulin, and energy metabolism. Am J Clin Nutr. 2006; 84(1): 63-69 
4. Ludy, MJ et al. The effects of capsaicin and capsiate on energy balance: critical review and meta-analyses of studies in humans. Chem Senses. 2012; 37(2): 103-2

  •  This natural fiber of the konjac plant won’t spike your metabolism. It won’t improve your insulin sensitivity either.Why’s it in Instant Knockout then? Because it’s power lies in it’s ability to improve your appetite and reduce food cravings.
  •  This complex carbohydrate source has a beta-D-glucose and beta-D-mannose long-chain structure which means it passes through your stomach without being digested, helping to keep you feeling fuller for longer.
  •  This is backed up with comprehensive research too. For example, one review of 6 different studies reported consistent short-term weight loss[5]. And a critical review study suggested that glucommanan could be the key to solving weight related issues in the US[6].
  •  All-in-all, this nutrient is a great addition to Instant Knockout. It reduces appetite but also helps to improve metabolic health – it’s a great ingredient for avoiding fat-storing triggers that cause over-eating or excessive snacking.

5. Zalewski, BM et al. The effect of glucomannan on body weight in overweight or obese children and adults: a systematic review of randomized controlled trials. Nutrition. 2015; 31(3): 437-42
6. Keithley, J et al. Glucommanan and obesity: a critical review. Altern Ther Health Med. 2005; 11(6): 30-4

  •  Caffeine anhydrous is the right hook of Instant Knockout, delivering a powerful punch to get you through your workouts.
  •  This nutrient has the ability to inhibit adenosine receptors, stimulating your nervous system into overdrive. It gives you energy and power, helping you to blast through even the toughest of workouts.
  •  It also helps you to focus and dial in by ramping up cognitive abilities and reducing fatigue. You’ll be more alert and ready for the task at hand. The gym had better get ready!
  •  Because caffeine intensifies your workouts, it contributes toward your daily energy burn. It has been found to reduce the fatigue and perceived pain associated with tough exercise session by just less than 50%[7], and even directly boost fat loss by elevating fat oxidation and insulin sensitivity[8].

7. Maridakis, V et al. Caffeine Attenuates Delayed-Onset Muscle Pain and Force Loss Following Eccentric Exercise. J Pain. 2007; 8(3): 237–24
8. Keijzers, GB et al. Caffeine can decrease insulin sensitivity in humans. Diabetes Care. 2002; 25(2): 364-9

  •  Vitamin B6, or pyridoxine, is the ingredient that pulls it all together in Instant Knockout.
  •  It’s a great all-rounder that helps supports a healthy lifestyle by improving the way that you synthesize energy. Not only that but it also directly contributes to fat burning by elevating your metabolism and fat oxidation too[9].
  •  B6 helps the way that your body absorbs amino acids, which can help you build muscle. It also regulates carbohydrates and fats, helping you to control your diet and achieve a calorie deficit with ease.

9. Zemel, MB et al. Effects of a Leucine and Pyridoxine-Containing Nutraceutical on Fat Oxidation, and Oxidative and Inflammatory Stress in Overweight and Obese Subjects. Nutrients. 2012; 4(6): 529-541

  • Another B vitamin in Instant Knockout, B12 also helps you cover food into useable energy.
  •  You’ll find that your metabolism is higher and so is your ability to train harder, for longer in the gym. You’ll also be able to tolerate your diet for longer and your mood and immune system will continue to be high during your cut.
  •  Vitamin B12 will help you break down fatty acids, improve digestion of carbohydrates and maximize protein synthesis. Club this together and you’ve got a recipe for a leaner, more athletic body composition, as well as better physical performance[10].

10. Lukaski, HC. Vitamin and mineral status: effects on physical performance. Nutrition. 2004; 20: 632-644

  •  GTF Chromium is one of the most underrated nutrients when it comes to a high-quality fat burner supplement.
  •  It’s an essential trace element, yet not many people get enough of it in their diet. And on top of that, high sugar diets can force your body to get rid of chromium in the urine, further causing deficiency.
  •  This nutrient helps to control insulin – the hormone that controls how you store carbohydrates in your body. On top of that, it also boosts your energy levels, reduces food cravings and increases metabolism.
  •  So how does it help you shred fat? Firstly, it contains a protein called chromodulin which improves how you metabolize both sugar and fat. This leads to more energy that been found to improve physical performance under strict laboratory condition[11].
  •  On top of that, studies have shown that chromium can reduce appetite and cravings, leading to a drop food intake and consequently more fat loss – as much as 1.1kg in some cases[12].

11. Anderson, RA. Effects of chromium on body composition and weight loss. Nutr Rev. 1998; 56(9): 266-70
12. Pittler, MH et al. Chromium picolinate for reducing body weight: meta-analysis of randomized trials. Int J Obes Relat Metab Disord. 2003; 27(4): 522-9

  •  Zinc is one of the most important nutrients when it comes to a lean, health composition. Why? Because it boosts the hormone responsible for elevating protein synthesis called testosterone.
  •  It’s not just about optimizing hormone though, because zinc also helps your body to process carbohydrate, fat and proteins into fuel which sustains your energy levels. This is particularly important if you’re exercising hard to get into shape.
  •  One study, using overweight adolescents, found that supplementing zinc for 8 weeks improved glucose metabolism and fat levels in the blood[13]. Another study reported that low zinc levels leave you with a much higher risk of excess body fat[14].

13. Kelishadi, R et al. Effect of zinc supplementation on markers of insulin resistance, oxidative stress, and inflammation among prepubescent children with metabolic syndrome. Metabolic Syndrome and Related Disorders.2010; 8(6): 505–10
14. Freire, SC et al. Dietary intervention causes redistribution of zinc in obese adolescents. Biol Trace Elem Res. 2014; 154(2): 168-77

  • Piperine is the extract of black pepper and a bioactive chemical helps with weight loss a number of different ways. It turns on your metabolism, aids digestion, elevates thermogenesis and best of all can even suppress the formation of new fat cells.
  •  Piperine acts like an on-switch to two fat burning receptors in the body – TRPA1 and TRPV1. When triggered, these receptors elevate energy metabolism and suppress fat cell accumulation[15]. The result? A potent fat burning effect.

15. Okumura, Y et al. Adiposity suppression effect in mice due to black pepper and its main pungent component, piperine. Biosci Biotechnol Biochem. 2010; 74(8): 1545-9

  •  You might have never heard of Green coffee bean before. They’re simply unroasted coffee beans.
  •  It’s got no caffeine content whatsoever, but what they lack in stimulatory power they gain in the compound cholorogenic acid – a substance that has been fund to slow down the rate of fat absorption from food[16].
  •  The brilliant thing about cholorogenic acid is that it reduces sugar cravings that can put the brakes on your diet plans. It can also lower cholesterol which not only boost health but also body composition.
  •  Studies into green coffee bean have been positive. One review[17] reported that adding green coffee into the diet, leads to a reduction in body mass as well as belly fat – and that’s exactly what you’ll get.

16. Thom, E. The effect of cholorogenic acid enriched coffee on glucose absorption in healthy volunteers and its effect on body mass when used long-term in overweight and obese people. Journal of International Medical Research. 2007; 35(6): 900–908
17. Revuelta-Iniesta, R et al. Consumption of Green Coffee Reduces Blood Pressure and Body Composition by Influencing 11β-HSD1 Enzyme Activity in Healthy Individuals: A Pilot Crossover Study Using Green and Black Coffee. Biomed Res Int. 2014

Other Ingredients: HPMC, gelatin, silicon dioxide, magnesium stearate, FD&C Red 40.


Do Not Exceed 4 Capsules Per Day. Always Swallow With Water. Do Not Take With Any Other Products That Contain Caffeine Or Other Stimulants. Do Not Take If Pregnant Or Nursing. If You Have Any Medical Conditions Or Are Taking Any Medication, Consult Your Doctor Before Use.


This product is not intended to diagnose, treat, cure or prevent any disease.

Overall Quality Verdict

The thing that we think speaks most to the overall quality of TestoFuel is its range of ingredients, all of which are proven to provide some kind of benefit linked to testosterone or luteinizing hormone production and regulation.

As we discussed above, ingredients such as tribulus terrestris and the more absurdly named horny goat weed have shown very weak relationships to an enhanced production of testosterone, so it is good to see that these arguably worthless ingredients have been omitted.

What’s more, TestoFuel is also free of caffeine and other stimulants which means that you can enjoy a significant boost to your T levels without any unnecessary jitters or loss of sleep.

Usage & Dosage

According to the product, to receive the full effect of Instant Knockout, you should consume one red capsule four times per day at the following times:

    • When you get up in the morning
    • Before you eat lunch
    • In the afternoon
    • Before you eat dinner

You should take them all before dinnertime.

According to the official Instant Knockout website, it’s fine to stack most other supplements with Instant Knockout. However, because Instant Knockout already contains 300mg of caffeine per day, the company recommends avoiding other supplements containing stimulants.

Please Note : We strongly recommend that you speak to your doctor or a certified medical professional before taking any supplement for the first time.

Feeling Low on Testosterone

Training either physical or in a gym is a demanding process. Most people try to avoid either of these sessions, attempting to find other ways to achieve fitness and muscle growth.

At the same time a quite large number of persons obsessed with the size of their muscles, are engaged in an unbelievable hard training programme in order to fulfil their dreams or desires.

Among these people chasing the dream of a greater muscle mass a lot of people find resort to various supplements and proteins, hoping the increase of muscle mass will eventually come.

This is a brief account of the problems dominating the majority of persons trying to acquire a large muscle mass. However the real problem is that even when all these are realized the expected result never arrives. This is because none of these people hits the core of the problem.

Looking a little more carefully into this we find that the real cause lies in the imbalance of hormones and not in the amount of training or the number of supplements received.

More specifically, a hormone called testosterone seems like being the missing link responsible for the imbalance of hormones in the body. Let’s clear here that without the sufficient amount of testosterone, it would be very difficult, if not impossible, to have any muscle gain, no matter how hard you train, or how careful is the nutrition followed.

Low testosterone levels means, high estrogen levels. As men, we need more testosterone than estrogen in our body, so a higher muscle growth and sex drive are achieved. The lower the estrogen levels, more testosterone created and received.

A number of ways or methods are known to date for increasing the testosterone levels including the use of steroid injections, gels, hormone replacement therapy or oral pills, being proved either quite expensive or risky for the human health, leading in many instances to fatal side effects.

In view of this situation the use of natural testosterone boosters is always recommended. Testosterone boosters like TestoFuel containing natural ingredients are capable of boosting the testosterone levels to normal levels again. TestoFuel can also enhance your sexual functions for a better bedroom performance.
So prior to spending money for any expensive treatment, you should consider trying TestoFuel. Read below and you agree with me it is worth it!

Side Effects - An Important Question

Before taking any supplement, you’ll want to be sure that the product doesn’t contain any banned or risky ingredients. Instant Knockout is essentially a food supplement which contains some plant extracts, as well as some Vitamins and Minerals and the stimulant Caffeine.

You can experience side effects when taking Instant Knockout. This blend of ingredients is designed with a high amount of caffeine from the green tea and can disrupt your normal schedule when you first incorporate the product into your diet. Thus, you might incur the following side effects:

    • Difficulty falling asleep. This could happen because of Instant Knockout’s natural stimulants. You might want to start taking only two capsules before lunchtime to lessen your caffeine intake later in the day.
    • Choking. You should take each of the four capsules with a large glass of water to help the pill go down.
    • Upset stomach. If you feel nauseated or vomit, you should lessen your intake. Try halving the dosage for a while before going back up to four pills a day, per the recommended dosage. Although manufacturers advise taking the pill before meals, you might find eating it with food is helpful on a meek stomach.
    • Headaches. With the stimulants, especially if you do not normally ingest caffeine, you could get headaches. You can also help with this issue by reducing the amount of pills you take per day and slowly building up to the four times/day dosage.

One thing we found with supplements in this category is that many of them tend to be overloaded with stimulants such as Caffeine. Ingredients such as Caffeine can cause side effects for some people, and that’s why it’s always important to seek advice from a certified medical professional before starting with any new supplement.

Please Note : We strongly recommend that you speak to your doctor or a certified medical professional before taking any supplement for the first time.

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Pricing & Purchasing

Instant Knockout prices are:

  • One bottle (one month supply): $59
  • Two bottles (two month supply): $118
  • Three bottles (four-month supply): $185

Instant Knockout also comes with a 90-day money-back guarantee. If you are not happy with your results, you can get your money back.

While many official retailers don’t stock Instant Knockout, the official website offers free delivery when you order three bottles (plus a bottle for free!), or free delivery to the USA and the UK if you order two bottles.

Scam Alert : Instant Knockout discount or coupon codes are not available anywhere online. Their website is the only source and they run multiple offers across the year such as 1 month free supply and free shipping with a money back guarantee when you purchase only from official website.

User Reviews


“Hi, My name is Jose and at 33 I begin to notice that my testosterone levels were not as they when I was in my late 20’s.

My mood was bad, energy levels were low and I had trouble wanting to get myself in the gym. I tried other test boosters that were out on the market and none of them worked.

Some require me to take a post cycle therapy which meant that my hormones were all over the place.

That all changed when I stumbled across TestoFuel on the internet. At first i thought that this would be another supplement that give me no results, but i was convinced after reading a few testimonials, so I decided to give it a try.

For me it took a while to get started, there wasn’t much going on in the first month. But then…

On my second month I noticed that I had more energy and I couldn’t wait to get in the gym.

I noticed progress after every week. I took this product for four months and I am happy with the results and my libido and sex drive was also through the roof. I also received a work out and eating routine ebook which was a great help.

I only work out three days a week for one hour and got better results than when I was going to the gym six days a week. I am ordering another four month supply and can’t wait to get started again.”


“Now middle-aged, I was overweight, out of shape, lacking energy and not happy with the way I looked. I’d let myself get this way because of a busy family life and by sitting in front of a computer every day for years. I wanted to get back to my old self, I wanted to feel the way I did when I was in my twenties again.

I started researching online about muscle supplements, natural testosterone boosters and the different ingredients. I found some conclusive studies behind D-Aspartic acid and Vitamin D for boosting test levels naturally in men, that’s when I came across TestoFuel. It was rated number 1 by a lot of websites and had good reviews on forums.

I bought the 4 box deal and set myself a challenge, to get back in shape in just 4 months. Within a few weeks I could feel the difference, more energy and a lot more motivation to go to the gym and eat healthier.

As you can see from the pics I reached my goal and got the results with TestoFuel, I look and feel great and I’ve got my confidence back.

I still want to lose a bit of fat, get even stronger and fitter. So, I’ve just bought another 4 box supply.”

We would like to conclude by saying.

If considered for boosting testosterone, a little or no effect is demonstrated. Some users had noticed no improvement in their testosterone levels, sex drive and muscle mass, while others feel a boost in strength and workouts performance. Testofuel is very good for men over 35 years, where their testosterone levels are.

TestoFuel is an amazing multi-vitamin — testosterone booster, designed for athletes and bodybuilders wishing to develop a greater muscle mass. Its ingredients are safe and effective to boost the body natural testosterone levels and also improve the sexual functions.

Testofuel contains no stimulants, additives, dyes or steroids, with all its ingredients found natural. The ingredients have been scientifically tested and proved, containing no proprietary blends, with its ingredients printed in full on the label. 

After considering its ingredients, testimonials, expert reviews and comparative research in the market, we have concluded that TestoFuel is an all natural, safe and legal testosterone boosting supplement for building muscle mass and losing fat, equally recommended for both men and women of ages above 18. Its price is a bit high but if purchased in bulk supplies keeping in view the testimonials of various satisfied customers then it will provide a really good deal, so we recommend you to buy it from the official website only to avoid any copy products and avail genuine offers and benefits.

A score of 4.5 out of 5 points is given to Testofuel, since the reviews online have been great, lots of customers have testified its effectiveness. They claim of seeing significant difference in their:

  1. Sexual life
  2. Testosterone levels
  3. Muscle and physique
  4. Energy levels

It is good to know that Testofuel won’t work for everybody, while it might take a little before you start having significant results. Most people have reported seeing results within one month, while some never experience any results. To see the best results, you should combine Testofuel with a healthy diet and regular exercise.

Testo Fuel is also known to stack up well with other supplements, making it ideal for those who wish to grow more extra muscle.
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