Six Star Thermogenic Shred Fat Burner Review

Six Star Thermogenic Shred is a fat-burning supplement from US-based fitness nutrition supplement company Six Star Pro Nutrition.

Six Star’s claim that Thermogenic Shred is one of the best fat burners available is very bold. There are some mighty impressive fat-burners out there.

Six Star claim that Thermogenic Shred gives you:

  • A powerful thermogenic experience
  • Unsurpassed energy
  • Real weight management powered by scientifically studied key ingredients
  • An incredible sensory experience
  • Elevated mental focus

OK. Let’s see if these claims are true, shall we?

About the Company

Six Star Pro Nutrition is the company behind Muscletech, America’s best-selling body-building supplement brand. They produce many products including protein powders, creatine, BCAAs (branched-chain amino acids) and testosterone boosters.

Their motto is “The Glory is In The Grind”.

And they claim to offer formulas for all gym users, from “rookies” to “lifers”.

>See our Top 5 Best Fat Burners here<

Pros and Cons

Here we’ll tell you both the good and the bad aspects of Six Star’s Thermogenic Shred.

As you can see above, the manufacturer makes some fairly audacious claims on Thermogenic Shred’s behalf.

So naturally you want to know if these claims are true and what the pros and cons are, right?


Six Star Thermogenic Shred’s good points:

  • It has proven fat burning ingredients
  • There’s a big company behind it
  • It contains no proprietary blends
  • The ingredients are all listed, including dosage information.
  • Ingredients are clinically dosed. This means you’re getting an effective amount of each component.
  • It’s fairly cheap.
  • It gets great customer feedback.


Six Star Thermogenic Shred’s bad points:

  • It contains too many stimulants
  • There may be potential side effects
  • It contains some ineffectual ingredients
  • There’s a lot of caffeine it, which may cause overstimulation
  • They promise an “incredible sensory experience”, but nothing seems to back this up.


Six Star Thermogenic Shred contains no proprietary ingredients, as previously mentioned. However, it does contain some ingredients that may cause undesired side-effects. We’ll cover these below.

Here’s a list of the active ingredients in Six Star Thermogenic Shred, together with explanations of what they do for you:


Caffeine kick-starts your metabolism which helps you to burn fat. It also gives you extra energy which is valuable if you’re eating fewer calories.

Caffeine is an outstanding ingredient for a fat burner, and it’s found in a lot of fat burning supplements.

Green Coffee Bean Extract

Green coffee bean has powerful thermogenic properties. This is because it contains chlorogenic acid.

Chlorogenic acid helps to decrease your liver’s glucose levels. Because your glucose levels are significantly reduced, this compels you to use your stored fat cells for energy.

It may also decrease your carbohydrate absorption rate which could reduce insulin and blood sugar spikes.


L-Theanine is an amino acid that helps you focus.

It increases your levels of serotonin and GABA. These hormones help you relax, and they also help you to smooth out both the caffeine “rush” and the subsequent “crash”.

It may also help you regulate body fat. Unfortunately though, most tests that demonstrate this were done on animals.

Rhodiola Extract

Rhodiola helps you burn up your abdominal fat reserves.

It also increases your focus and is often included in pre-workout supplements.

Cocoa Extract

Cocoa Extract contains theobromine, which helps increase your blood flow.

However, it doesn’t burn fat itself, it just helps your body absorb the ingredients that do.

This helps you use the active ingredients in Thermogenic Shred faster.

Guinea Pepper Extract

Guinea pepper is a form of Cayenne pepper.

It helps you burn fat more efficiently, especially your brown adipose tissue.

Guinea pepper is also similar to ginger in that it’s believed to help you with digestion. However, there hasn’t been any research yet to prove this claim and more studies are required to confirm it.

Cayenne Pepper

Cayenne pepper is a potent thermogenic, a great addition to any fat burner.

Thermogenesis occurs when your body heats up from the inside and burns fat to cool down. Your body gains the energy for this cool-down process by burning more calories than it normally would.

Cayenne also helps you absorb the other ingredients in Thermogenic Shred.

Side-Effects of Six Star Thermogenic Shred

Thermogenic Shred contains a lot of stimulants. This may conceal its effectiveness.

It may just give you a caffeine rush rather than providing a real benefit.

This might be why they suggest taking it only twice a day, because these stimulants can cause headaches and jitters etc.

We can’t see why you would use a fat burner with all these side-effects when there are so many safe options available.

Thermogenic Shred contains almost as much caffeine as three cups of coffee, so Six Star recommend that you do not consume any other caffeine while you’re taking it.

Too much caffeine can give you anxiety, sleeping difficulties, headaches, increased heart rate, and shakes.

The most common side effects that have been reported by users seem to be anxiety, gastrointestinal distress, and hypertension (high blood pressure).

Here’s a quick summary of the side-effects:

  • Anxiety
  • Gastrointestinal problems
  • Hypertension (high blood pressure)
  • Headaches
  • Increased heart rate
  • Restlessness

>See our Top 5 Best Fat Burners here<

How to Take Six Star Thermogenic Shred

Six Star advise that you should take two capsules twice a day about 30 to 60 minutes before your two main meals.

Each serving must be taken at least 3-4 hours apart and don’t exceed four capsules in a 24-hour period.


A bottle of 60 capsules costs $15 (about £11.55) and will last 15 days.

Which means a monthly supply of Thermogenic Shred costs $30 (about £23.10).

Is Six Star Thermogenic Shred Good Value for Money?

Six Star Thermogenic Shred is good value for money in that it’s relatively cheap and gets good customer feedback.

The ingredients are also clinically dosed, which means you’ll be getting an effective amount of each.


Thermogenic Shred has some good fat burning ingredients but also contains ineffectual ingredients that could be replaced with better ones.

It contains a worrying number of stimulants, which appear to be its focal point.

Many supplements contain stimulants, but it looks like they’ve overdone it here and are perhaps trying to overcompensate.

We’d like to see Green Tea Extract included because it’s one of the best thermogenic ingredients available.

If you don’t mind stimulant-heavy supplements, Thermogenic Shred may be for you. Overall, though, you’ll find better fat-burners out there.

You can buy Thermogenic Shred from Six Star’s website here.

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