Instant Knockout vs Oxy Thermogenic Hyper-Metabolizer [Do They Work?]

Instant Knockout vs Oxy Thermogenic Hyper-Metabolizer

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Instant Knockout vs Oxy Thermogenic Hyper-Metabolizer

A tale of two fat burners but which of our Instant Knockout vs Oxy Thermogenic Hyper-Metabolizer review is going to give us a product worth buying.

Since both products have a big following online, it will make for a good comparison. Only one can win and it will be down to the best ingredients and dosages that give us what we want.

Speaking of which, the following is what we expect them both to do:

  • Burn fat effectively
  • Be safe
  • Suppress appetite
  • Increase energy

Anything less than this and the product will go onto the long list of fat burners that tried and failed.

Time to see what they have to offer.

Instant Knockout vs Oxy Thermogenic Hyper-Metabolizer: Who Makes These Products?

Roar AmbitionInstant Knockout fat burner supplement review

The people behind Instant Knockout are UK based Roar Ambition.

They have an excellent reputation inline with many customers taking to the net to display their before and after profiles. Clearly, they are happy with the results.

We like that they review and amend their ingredients regularly. This means their customers are getting the best possible version at all times.

With a money back guarantee and FDA approval, they tick all the boxes.

Roar Ambition even has some quality endorsements. This product is endorsed by UFC fighter Diego Sanchez who uses it to make weight.

They also make a T-Booster called TestoFuel. None other than former Mr. Universe Robby Robinson endorses this.

HyperNutraOxy Thermogenic Hyper-Metabolizer

This is the company behind Oxy-Thermogenic Hyper-Metabolizer.

They have a 30-day money back guarantee which is something we always look out for. That’s one box ticked.

They say this is a fat burner that works for both men and women and they also make a nootropic supplement.

What we find difficult is actually gathering much in terms of useful information about them. They don’t have a big online following and we feel their reputation suffers as a result of this.

We did find out that this is made in the USA to GMP standards.

It also sells well on Amazon. The problem with this is that it isn’t the most reliable place to judge a product. Some of the worst we have seen sell well on there. A lot of the more legitimate products often choose not to go down the Amazon route.

Still, it doesn’t mean this will be one such product.

Now let’s see what is on the labels.

Instant Knockout vs Oxy Thermogenic Hyper-Metabolizer Ingredients

This is where we can really see which product is going to stand out.

The early signs are not good for Oxy Thermogenic Hyper-Metabolizer. They use one very large proprietary blend which covers all but one ingredient. This means we do not get to see the dosages of most ingredients making it hard to see if they will work.

They also advise taking it twice a day. This isn’t as favorable as Instant Knockouts 3-4 times a day which allows us to burn fat all day long.

Mutual Ingredients

Green Coffee Bean

A top fat burner that is basically just coffee before it has had the color roasted out.

For what we are looking for it is the chlorogenic acid that is most beneficial. It is this that helps the user to stop storing fat and also reduce blood sugar levels.

According to WebMD, one study discovered that adults with obesity who took Green Coffee Extract for between 8 to 12 weeks lost more weight than those taking a placebo.

The dosage is all important here. Because Oxy THermogenic Hyper-Metabolizer has it in their proprietary blend there is no way of telling how effective it will be. Instant Knockout contains 100 mg which will do a very effective job of the above.

Cayenne Powder

A proven thermogenic and one of the best fat burning ingredients going.

It heats the body up on the inside, causing it to burn fat to cool itself down. It is also an appetite suppressant. By swelling in the stomach it makes the user feel fuller for longer. Great for helping you to stop snacking in between meals.

At 100 mg Instant Knockout are giving you what you need. Does Oxy Thermogenic give us anywhere near this? We doubt it since the overall blend totals 315 mg per serving and contains many ingredients.

Caffeine Anhydrous

Another very useful ingredient.

The energy boost should be welcomed by anyone using a fat burner alongside a diet that allows fewer calories than usual.

It is easy to absorb and will boost your metabolism and increase your heart rate.

The Anhydrous refers to the fact that this is a powdered form. This is what makes it so easy to absorb.

An ingredient that will boost metabolism and also increase your heart rate. This, in turn, helps to burn fat. All this will really get you burning fat.

The dosage needs to be around 250 – 350 mg like most fat burners. The proprietary blend in Oxy Thermogenic means it is impossible to tell if it is enough. However, since per 1 capsule all ingredients in the blend totals 315 mg we doubt there is enough.

Instant Knockout give us an optimal dosage of 350 mg.

Individual Ingredient

Instant Knockout

Vitamin B6

Another effective ingredient.

It shares the same energy boosting qualities as other B-Vitamins and helps the body to burn fat by turning it into glucose to use for energy.

It makes a good use out of the things you do not want and will even enhance muscles to make them more effective during training sessions.

By targeting carbs it helps to make sure they do not show in unwanted places.

The 5 mg is another optimal dosage.

Vitamin B12

Another Ingredient that stops the user from storing fat and another that increases energy levels.

It isn’t something our bodies create naturally so keeping it topped up by using a supplement can be very useful.

B12 is found in meat, dairy, and fish so this is a good ingredient for vegetarians and vegans to get into their diet.

It will stop you from feeling fatigued by promoting red cell production.

With 10 mcg included it will work really well.


Lower levels of Zinc puts you at risk of storing excess body fat.

It is an important ingredient that can improve glucose metabolism and fat levels in the blood.

Many people are deficient in Zinc making it a good ingredient to get into a supplement. Often heralded for is T-Boosting benefits our bodies cannot create more T without it. says it is as an essential Vitamin and it has even been shown to improve mood.

The 10 mg in Instant Knockout is a very good amount.


An ingredient that improves insulin resistance and can regulate blood glucose.

WebMD says that Chromium can decrease LDL or bad cholesterol levels in people with slightly high cholesterol levels. It has also been shown to lower blood fat levels.

You will find it in fruit, seafood, and vegetables. There are some studies that have shown it to help communicate with the brain to control appetite.

Green Tea Extract

More than a popular drink it is an effective fat burner.

Another thermogenic that will get your body burning fat supplies even when it is resting.

A great ingredient and often the first that springs to mind when you think of thermogenesis. The dosage in Instant Knockout reflects this at 500 mg. That’s more than the total of every Capsule in Oxy-thermogenic Hyper-Metabolizer.


Another effective appetite suppressant here. It is a dietary fiber that swells in the stomach, making the consumer feel full.

Another opportunity to not put on the fat you work so hard to get rid of.

Another high and brilliant dosage at 500 mg as well.

Black Pepper Extract

Not a direct fat burner but a useful ingredient.

It enhances the benefits of the other ingredients so as long as they are good, this works!

Luckily for users of Instant Knockout, this will do a lot of good because of the quality in this product!

Oxy Thermogenic Hyper-Metabolizer

White Kidney Bean Extract

The only ingredient in this product that does not find itself in their proprietary blend.

In reality, it isn’t the best ingredient. Sure it is anti-inflammatory and it does stop us from absorbing starch but were not convinced that it really works.

It seems that are not either. They say that this is sometimes used alongside carb containing meals to reduce the absorption of carbohydrates. It does appear to work, but its potency is quite unreliable and relatively subpar according to them.

So not the most effective and one that will not be dosed high enough anyway. At 10 mg per capsule, it is significantly lower than the 800 mg Examine suggest for a true effect.

Garcinia Cambogia

A proven appetite suppressant.

Garcinia Cambogia is often used to improve the flavor of different foods and is derived from the fruit.

The skin of which is high in hydro citric acid which is beneficial for fat loss. It has also been found to increase oxidation of fat during exercise.

There is a study that has shown how Garcinia Cambogia slightly helped with fat loss in comparison to a placebo group after 16 weeks.

The dosage lets it down once again. We need at least 400 mg making the 315 mg total of the proprietary blend per capsule unlikely to be enough.

Raspberry Ketones

Not your most assured fat burner.

Often included due to the fact that some studies on test tubes and animals have shown promise.

The lack of human trials is what has put most people off but its use in a fat burner supplement is discredited in most corners.

Like we mentioned it is the preliminary tests that were promising which is how this became a popular ingredient. WebMD does say that it may affect the hormone adiponectin. This can increase the rate at which the body burns fat as well as reduce appetite.

WebMD does also remind us that there is no reliable scientific evidence that raspberry ketone improves weight loss when taken by people.

This, of course, is what we are after so it is a problem for this ingredient. The dosage is not known so we cannot see how much room it is wasting here.

African Mango

The potential of this ingredient is all it has really.

It is the seeds of this fruit that are thought to be beneficial but in order for it to reduce the fat cells our bodies create like some think it might, it needs more backing.

It is thought that you need 300 mg at least for any benefit. Again, it is unlikely that we are getting that.

Conjugated Linoleic Acid

Not the most uncommon ingredient and you will sometimes see it linked to treating obesity.

What can it do for us then?

Well, WebMD does suggest that it is a safe ingredient and mentions that it can be helpful for fat loss. Still, this is listed under the ‘possibly effective’ area which leads us to believe the evidence still isn’t quite there.

It is possible that Conjugated Linoleic Acid can be useful for your metabolism. However, we would need the dosage to see if this is really the case.

The blend is once again proving to be an inconvenience.


It is sometimes credited with being an appetite suppressant but it is rare to see it in an effective fat burner.

Hoodia is a traditional African ingredient that is similar to a cactus. Some studies have shown that it communicates with the brain to tell it that the body isn’t hungry.

Sounds good right? Sorry to burst the bubble but this ingredient is not without its issues. says Hoodia cannot easily reach the brain and aside from failures of hoodia to suppress appetite it may also be mildly toxic and imprudent to supplement. This makes it a useless ingredient and one best avoided really.

They also go on to say that dosages of 500 – 1,000mg/kg in mice resulted in some mortality – poor mice!

Apple Cider Vinegar

There are a plethora of benefits linked to this ingredient making it a popular healthy ingredient in many people’s homes.

Its main benefit here is that it keeps the food in our stomach there for longer. It is another appetite suppressant and the more the merrier really.

This product does sell you on the thermogenics and appetite suppressants but still, they are likely to all underdosed given the overall dosage.

If you take it before eating it can reduce the number of carbs the body absorbs. A shame that it probably won’t have any effect here.


An ingredient more likely to be found in a nootropic as it can help you to focus.

This is useful especially in the gym but it is taking up room that should be used on proven fat burners. There are too many ineffective ingredients already and a nootropic is a luxury this product cannot afford.


Another stimulant but this should not be cause for concern. It is unlikely to be dosed high enough to have too much of an effect.

Compared to Caffeine, the buzz will be milder and it can stop the user from retaining water.

An ingredient found in various soft drinks but WebMD does say that it can be unsafe to take in large doses over a long time. This should not concern the users of this product as it is only when taking over 250 – 300 mg.

The fact that this is close to the blended total per capsule does not lead us to believe this is the case.


An ingredient that can help prevent the brain from aging as fast making it another useful nootropic.

It has other benefits including the fact that it gets your metabolism going. A useful ingredient. Still, the dosage is needed.


Some believe it to be an effective appetite suppressant.

This is all very well but a bit more variety might be good.

A precursor to serotonin that will help improve the users’ mood. This is why there are reports that say you should not take it in a supplement if you use other supplements that include serotonin.

There is a risk of side effects if you do so although the dosage is likely to be low here.

L-Arginine HCI

This amino acid is a popular ingredient in T-boosters because it helps to increase blood flow.

With benefits for sexual health, it doesn’t appear to have any relevant fat burning qualities.

Papaya Leaf

With minor benefits, it isn’t the worst ingredient but that is us being kind.

WebMD says that Papaya Leaf contains papain which breaks down carbohydrates, proteins and fats.

The same page does go on to say that there is some question as to whether it can be useful when taken by mouth.

Yet another ingredient that doesn’t seem worth consuming.

Instant Knockout vs Oxy Thermogenic Hyper-Metabolizer Side Effects

The good news is that neither product appears to have anything in there you wouldn’t want to consume.

The natural ingredients and effective dosages in Instant Knockout make it a safe and beneficial product.

The doses in Oxy Thermogenic Hyper-Metabolizer do not appear to be potent enough to have much of an effect either way.

Instant Knockout vs Oxy Thermogenic Hyper-Metabolizer Pros and Cons

Instant Knockout Pros

  • Natural ingredients
  • Money back guarantee
  • Used by top athletes
  • Ships worldwide
  • Enhances metabolism
  • Suppresses hunger

Oxy Thermogenic Hyper-Metabolizer Pros

  • Some effective fat burners
  • Likely a safe product

Instant Knockout Cons

  • Not available in store
  • Shouldn’t take too late in the day because of the caffeine levels

Oxy Thermogenic Hyper-Metabolizer Cons

  • Proprietary blend
  • Underdosed ingredients
  • Ineffective ingredients

Instant Knockout vs Oxy Thermogenic Hyper-Metabolizer

Winner: Instant Knockout

Buy Instant Knockout from:

(Clean Lean Machine tip: Get 1 box free when you buy 3 boxes!)

An easy victory today.

The combination of Instant Knockout being an outstanding fat burner and Oxy Thermogenic Hyper-Metabolizer being weak made this a no contest.

It just does everything you want it to. With proven ingredients that include the best thermogenics, appetite suppressants, and metabolism boosters it is hard to beat.

Combine this with the safe amount of stimulants that will give you a great energy boost and you have a fat burner supplement that does it all.

If you have read the numerous product reviews for this category you will know how hard it is to find a product that can do all this effectively and safely.

It should come as no surprise that it is top of our recommended fat burners list.

Buy Instant Knockout from:

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