Instant Knockout vs Twinlab Ripped Fuel Extreme Fat Burner [Only One Works!]

Instant Knockout vs Twinlab Ripped Fuel Extreme Fat Burner

Disclaimer: This post may contain affiliate links, meaning, at no cost to you, we may receive a commission if you decide to click through and make a purchase.
Affiliate earnings help us with the cost of maintaining this website, but rest assured that if a product isn’t safe and effective – We DO NOT recommend it or include affiliate links!
Please read our Disclosure for more.

Instant Knockout vs Twinlab Ripped Fuel Extreme Fat Burner

Two big names collide in our Instant Knockout vs Twinlab Ripped Fuel Extreme Fat Burner review. Which one will have you shredded and in the shape of your life?

It’s easier said than done though each product has to live up to some big expectations here at CLM to be considered effective. Only a handful of products are good enough for us to recommend, but which of these will be the winner?

To impress, they need to do the following well:

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

The ingredients and dosages will be vital here. We can see there are a few mutual ingredients so who has given us the optimal dosages?

Time to find out a little about each product first.

Instant Knockout vs Twinlab Ripped Fuel Extreme Fat Burner: Who Makes These Products?

Roar AmbitionInstant Knockout Review

Here we have the people behind Instant Knockout.

UK based, they do everything by the book and are FDA and GMP approved. They have a loyal following with loads of people taking to the net to post their before and after profiles.

We like that they review and amend their ingredients and dosages regularly. This means the customer is always getting the best possible version.

They give all their customers a money back guarantee when purchasing their products which gives you the chance to try it on for size, risk-free.

If endorsements are your thing then theirs are impressive. UFC fighter Diego Sanchez puts his name to this fat burner, using it to make weight before a bout.

Roar Ambition also makes a T Booster called TestoFuel. Former Mr. Universe Robby Robinson endorses it.

TwinlabTwinlab Ripped Fuel Extreme Fat Burner

This company has roots going back to 1968 but have been the subject of some controversy.

In 2003, the FDA contacted them as they had some questions regarding some of the claims they had made about a handful of their products. Their main concerns were over the legitimacy of these claims.

However, this is a while ago now.

It was started by the founder David Blechman’s families garage. It appears they have come some way since those early days. Their range of products now covers vitamins, herbs, and even teas.

Available across 55 countries they base themselves in Grand Rapids, MI.

Their brands include Alvita Tea and REAAL Muscle.

They claim that this product works as an intense fat burner and helps rid stubborn fat whilst preserving body mass. Let’s see if these claims are true or if they are guilty of the old habits.

We didn’t see anything regarding money back guarantees but everything seems above board.

Instant Knockout vs Twinlab Ripped Fuel Extreme Fat Burner Ingredients

This is where we can really get to know each product.

The good news is that Instant Knockout does not contain any proprietary blends and Twinlab have only used one that includes just two ingredients.

The serving suggestion favors Instant Knockout here. They advise taking one capsule 3-4 times a day which really spreads out the benefits. Twinlab advises taking just twice a day.

Mutual Ingredients


A very good ingredient to start with and one we find in the better fat burners.

It has been found to improve insulin resistance and also regulate blood glucose. WebMD advises that Chromium can decrease LDL (bad cholesterol) levels in those who have lower blood fat levels.

Some studies have also shown it to be able to communicate with the brain to tell the body it is full. An effective product for reducing cravings it will stop you from putting on more fat that you have worked hard to work off.

The two dosages here are both effective. The 100 mcg in Instant Knockout and the 200 mcg in Twinlab Ripped Fuel Extreme Fat Burner will both do good things.

Green Tea Extract

Another effective ingredient.

Green Tea Extract is a proven thermogenic. This means it heats the body up on the inside, causing it to burn fat to cool itself down. This will have you getting rid of fat as you rest.

It will even enhance endurance levels – useful for your workout.

WebMD tells us that Green Tea is milder than the likes of Caffeine Anhydrous and it contains 2-4% Caffeine. This will provide a welcome boost to your thinking and alertness.

The dosage of 315 mg is a good amount from Twinlab Ripped Fuel Extreme. The 500 mg in Instant Knockout is going to give you more of what you need though.

Green Coffee Extract

A really beneficial nutrient, this is Coffee before the color has been roasted out.

When roasted, the amount of chlorogenic acid is also significantly reduced. This is what is most beneficial here. Chlorogenic acid stops us from storing as much fat and also reduces blood sugar.

WebMD says that a study looking into adults with obesity showed that taking Green Coffee Extract for between 8 to 12 weeks meant more weight loss for those when compared to others taking a placebo.

The 200 mg in Twinlab Ripped Fuel Extreme Fat Burner is an optimal dosage, as is the 100 mg in Instant Knockout.

Cayenne Pepper

One of the best ingredients in the whole Instant Knockout vs Twinlab Ripped Fuel Extreme Fat Burner review.

It has two of the biggest strengths when it comes to fat burner ingredients.

To start with, it is a proven thermogenic, giving you more chance of burning fat all around the clock.

It also works as an appetite suppressant. WebMD confirms this. They say it has been found to curve appetite, especially in those who do not already eat spicy foods.

Getting these benefits through supplementation is always a good idea. If you aren’t a fan of spice especially.

The dosage in Twinlab Ripped Fuel Extreme is on the low side though, At 50 mg it isn’t going to have the same impact as the 100 mg in Instant Knockout.


Not listed as an ingredient in Twinlab Ripped Fuel Extreme, they do say that it contains 220 mg of Caffeine. This is a safe and effective amount.

Instant Knockout contains Caffeine Anhydrous. This is the powdered form that is easily absorbed by the body.

The increase of energy is really beneficial for anyone using a fat burner alongside a diet that restricts calories. It will get your metabolism going and have you burning fat as well.

With added focus, it is a good all round fat burner ingredient.

Instant Knockout has provided 350 mg which when taken over 3-4 servings is a really effective amount.

Individual Ingredients

Instant Knockout

Vitamin B6

A useful ingredient that works in a similar way to many of the B-Vitamins. It increases energy levels and uses fat by turning it into glucose so it can be used for energy.

Using fat as the coal that moves the body is a great trait and B6 will also enhance muscle performance.

Sometimes a little underrated and not seen in enough fat burners as far as we are concerned.

The dosage here is 5 mg which is all you need.

Vitamin B12

B12 will stop your body from storing as much fat.

It isn’t actually something we can create naturally which means the best way to make sure you get the benefits are from supplementing it. Vegetarians and vegans will be in particular need of this as it is mostly derived from meats, dairy, and fish.

It can even help fight against fatigue and promote cell production. A good amount is provided in the 10 mcg dosage.


Mostly found in testosterone boosters but what can it do for fat burning?

If you have low levels of Zinc, you are at a much greater risk of storing excess fat. It has even been found to enhance glucose metabolism. says that Zinc has also been shown to improve mood.

The 10 mg is an effective and safe amount of this useful ingredient.


Another very effective appetite suppressant.

Glucomannan is a dietary fiber that swells in the stomach. This is what makes the user feel full. Part of a fat burners benefit should be stopping you from checking the fridge in between meals.

The big 500 mg dosage shows Instant Knockouts commitment to making this product work as it is a great amount.

Black Pepper Extract

This is only useful if it is used alongside proven ingredients.

Luckily, Instant Knockout is full of them which is why the fact that Black Pepper Extract can enhance the capabilities of other ingredients is a good thing.

The 10 mg will really help.

Twinlab Ripped Fuel Extreme Fat Burner


Unfortunately for this product, Calcium isn’t usually in short supply in our bodies.

You can get it from milk, cereals, cheese and a lot more places.

The most common mineral in our body so what is the point in supplementing it?

It is usually thought to be most beneficial for memory. This is supported by NCBI, this page tells us that it regulates several functions, such as neurotransmitter synthesis and release and is also involved in long-term processes like memory.

Useful in this way, but what about fat burning?

According to WebMD, there is a study that discusses the fat burning benefits of low-calorie calcium in that it helps regulate how fat is broken down.

This is a study conducted on mice though. Human trials are what we are after really.

The 118mg here could have some effect but you might already be getting an ample supply in your diet.

Baical Skullcap Root

This is the first ingredient in a mini proprietary blend that also contains Black Catechu Bark. We don’t have the dosages but the total of both is 125 mg. tells us that the main benefits fo this ingredient seems to be for cognitive health as well as longevity. They say it appears to be a good source for flavonoid components, and some components are quite potent.

The flavonoids, as Examine go on to tell us, appears to be readily glucuronidation, which constitutes the major pathway of metabolism.

Support for metabolism is useful but it is possible that the anxiety relief it offers is the best thing it does.

Because of the Caffeine content, the relaxing properties might help you to avoid any afternoon crash.

Black Catechu Bark

An ingredient you will often see in medicine it isn’t the most impressive for fat burning.

On WebMD there is no mention of its use in a fat burner so it doesn’t seem to be an effective ingredient here. Twinlab has included it as part of their Herbal extract blend but as far as we can tell, the benefits do not include fat burning.

WebMD does suggest that if taking alongside medication for high blood pressure it might lower it too much.

An issue we have is that there isn’t a lot of human research and not a lot is known about it.

Without the dosage, we can’t see how much space it is wasting.

Coca Seed Extract

This is a nootropic enhancer that appears to be milder in its effects than Caffeine.

The research isn’t concrete on this anyway, a lot of sources disagree with its benefits.

It isn’t one we can really get excited about. It could be good for improving mood but if you aren’t specifically looking for this, then it’s not of great use here. does seem to support the above and comments on how it improves blood flow and antioxidant effects.

They have put their weight behind it with a dosage of 315 mg. This could really be used on a proven fat burning ingredient.


A good metabolism booster.

The main issue with it is that unless you are deficient, it isn’t going to help you beyond normal levels.

We usually have plenty of it in our bodies but other benefits from it include energy metabolism. It can affect how we create energy from food.

At 13 mg it isn’t potent here.

Instant Knockout vs Twinlab Ripped Fuel Extreme Fat Burner Side Effects

The good news is that neither product seems to include anything you wouldn’t want to consume.

Sure, some of the ingredients in Twinlab Ripped Fuel Extreme Fat Burner aren’t ideal, but they are safe.

The dosages are all fine in both products as well.

Instant Knockout vs Twinlab Ripped Fuel Extreme Fat Burner Pros and Cons

Instant Knockout Pros

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

Twinlab Ripped Fuel Extreme Fat Burner Pros

  • Some effective fat burners
  • Natural ingredients
  • No side effects

Instant Knockout Cons

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

Twinlab Ripped Fuel Extreme Fat Burner Cons

  • Some ineffective ingredients
  • Cayenne pepper underdosed
  • Serving suggestion not ideal

Instant Knockout vs Twinlab Ripped Fuel Extreme Fat Burner Conclusion

Winner: Instant Knockout

Buy Instant Knockout from:

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

Both products contain some great fat burners, but only one product has followed these up with some other great inclusions.

Instant Knockout has also gone with optimal dosages for all ingredients making it a very effective fat burner.

It is made up of all natural nutrients and is completely safe to use.

There is nothing in there that would make you think twice about buying and for us, it is the best fat burner we have seen.

For a product that will really work, Instant Knockout should be the first supplement you look at.

Buy Instant Knockout from:

Leave a Reply

Your email address will not be published. Required fields are marked *