Instant Knockout Vs Sheer Thermo Thermogenic Reviews

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Instant Knockout vs Sheer Thermo Thermogenic Reviews

A true battle of the fat burners today as we have Instant Knockout vs Sheer Thermo Thermogenic Reviews to keep us entertained.

When a fat burner claims to do certain things on the label, it better live up to them, Sheer Thermo has caught our eye by marketing itself as a thermogenic fat burner, so will it have more of these effective fat burning ingredients than Instant Knockout?

With the market exploding with an abundance of these popular fat burning supplements, so many sub-par offerings are being thrown on the market quickly, all promising the world.

Both of these two have enough of a reputation to have caught our eye, but which is the best fat burner, and can either consider itself to be among the best in the fat burner niche?

In order for them to pass our standards, they must get the basics right. For a fat burner, we consider these to be:

  • Burn problem areas of fat effectively
  • Suppress appetite
  • Increase energy
  • Be safe

In terms of the last on that list, neither product uses proprietary blends which is always a good sign. This means we can get a proper look t the dosages of all the ingredients to see how effective they will be.

Before we look at the ingredients, let’s get to know them a little better.

Instant Knockout vs Sheer Thermo: Who Makes These Fat Burners?

Roar Ambition

The people behind Instant Knockout are this UK based company. They have built a solid reputation through their money back guarantee and the fact that they review their ingredients and dosage profile regularly, ensuring the user gets the most up to date version possible.

Instant Knockout is endorsed by none other than UFC fighter Diego Sanchez who uses it to make weight before a bout. Since it is safe for competition and contains 100% natural ingredients it is trusted by the professionals.

They ship form the USA and UK so delivery worldwide is not a problem.

Sheer Strength Labs

Sheer Thermo Thermogenic Reviews

Read our full Sheer Thermo Review

USA based Sheer Strength Labs are the guys that make Sheer Thermo.

They have a range of products with everything from a pre workout to their nighttime based fat burner Sheer Shred PM. We reviewed it and take our word when we say that fat burners are best kept to daytime use.

We like that they also have a money back guarantee and they are pretty open when it comes to their ingredients, we just have a few reservations about the selection of some of their ingredients at times.

All in all, they appear to be a reputable company.

Instant Knockout vs Sheer Shred Ingredients

This is where we can really separate these two fat burners and find out which is the better option for your money.

To start with, we prefer the suggested serving of Instant Knockout. The 3-4 times a day suits us best when it comes to fat burning as it means the benefits are spread throughout the day. Ensuring your body is burning fat around the clock.

The approach of 1 capsule twice a day from Sheer Thermo means the effects will wear off before too long.

Mutual Ingredients

Green Tea

A great start form both of these products as this is one of the better fat burning ingredients available.

It is a proven thermogenic ingredient which means it heats up your body on the inside, causing it to burn fat to cool itself down.

It doesn’t end there though, Green Tea has been shown to improve the effectiveness that cardio has on fat burning, so it has two ways of helping you burn fat.

The optimal dosage of 500 mg in Instant Knockout is great to see, the 300 mg in Sheer Thermo might just be enough to have an effect, but Instant Knockout has taken a lead here.

Caffeine Anhydrous

Another good ingredient for a fat burner, especially when used alongside a diet that requires a lower calorie intake than usual. The extra energy will be much needed.

On top of this, it also boosts your metabolism so it is a welcomed addition to any fat burner. This is the powdered version of caffeine that is easily absorbed into your system and often found in energy drinks.

They have included 350 mg, compared to the 200 mg of Sheer Thermo it is clear who is the winner once again.

Instant Knockout vs Sheer Thermo Thermogenic Individual Ingredients

Instant Knockout Ingredients

Cayenne Pepper

One of the best fat burning ingredients around and for good reason.

This is another thermogenic ingredient (we thought Sheer Thermo was supposed to have all the thermogenics!?) but on top of that, it is also a proven appetite suppressant. Ingredients like this stop the user from reaching for the snack cupboard in between meals and putting more fat on.

It works by swelling in your stomach, making you feel fuller for longer.


Another great appetite suppressant, Instant Knockout have done their research.

This fiber swells in the stomach and absorbs water making you feel full. Another very effective ingredient that is found in only the best fat burners.


Not a direct fat burner, but more of a reliable extra.

This is good for enhancing the capabilities of the other ingredients in a fat burner so the benefits are more to get the most out of the other nutrients. A clever addition.

Sheer Thermo Thermogenic Ingredients

Bacopa Monnieri

This ingredient is good for improving your memory and reduce anxiety. Good for your brain it is better found in a nootropic supplement.

The concern here is that it will elevate your mood and make you feel good, which is nice, but will not contribute towards burning fat.


This is derived from the West African tree bark and is mostly known for its ability to enhance libido.

Our concern is that there are not enough studies to support its use as a weight loss aid and is in fact known to have potential side effects that are quite alarming…

WebMD advise that these can include chest pain, heart attack, heart failure and even death.

Instant Knockout vs Sheer Thermo  Thermogenic Side Effects

It might not come as a surprise that Instant Knockout does not cause any known side effects, probably due to the fact that they use 100% natural ingredients.

The same can’t be said about Sheer Thermo Thermogenic however, because of the inclusion of Yohimbine. As we mentioned in the previous section this has some pretty serious potential side effects.

We’ve already mentioned that these include the likes of chest pain, heart attack and more, but what should also be noted is that you should consult your doctor before using Yohimbine.

Instant Knockout vs Sheer Thermo Thermogenic Pros and Cons

Instant Knockout Pros

  • Appetite suppressant ingredients
  • Thermogenic fat burner ingredients
  • Zero side effects
  • Trusted company
  • Optimal dosages
  • Good caffeine level
  • No proprietary blends

Sheer Thermo Pros

  • Some good ingredients
  • No proprietary blends

Instant Knockout Cons

  • Only available online

Sheer Thermo Cons

  • Yohimbine can cause serious side effects
  • Not enough thermogenics
  • Not enough appetite suppressants
  • Dosages not high enough

Instant Knockout vs Sheer Thermo Thermogenic Review Conclusion

Winner: Instant Knockout

Instant Knockout Review

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Read our full Instant Knockout Review

Although both of these products have some very effective fat burner ingredients, there was only one product here that made the most of them.

Instant Knockout didn’t live off the fact that they included some good ingredients, they included even more and ensured all the dosages are optimal. This makes for a truly effective fat burner and one that is also 100% safe.

This was one of the problems with Sheer Thermo, it went the way of many fat burners, it included a couple of decent ingredients, but didn’t optimally dose a lot of them and even included an unsafe ingredient.

On top of this, it included a couple of ingredients that are better suited to nootropic supplements. We worry that this is to elevate the mood of the user which will make them feel good, but ultimately not help them lose fat.

Instant Knockout appears to have ticked all the boxes, there are plenty of appetite suppressants, enough stimulants to have an effect but not too many and plenty of fat burners. Plus, top athletes use this product, if it’s good enough for them it is often worth a closer look.

You can’t ask for much more which is why it features so highly in a lot of peoples top fat burners lists.

To find out more about this excellent fat burner…

Read our full Instant Knockout Review

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