Instant Knockout vs Jacked Factory Lean PM [Fat Burner Battle]

Instant Knockout vs Jacked Factory Lean PM

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Instant Knockout vs Jacked Factory Lean PM

Our Instant Knockout vs Jacked Factory Lean PM comparison is a real tale of two different approaches.

If you are new to the fat burning market then you may not have come across a nighttime fat burner, this is what we are looking at in Jacked Factory Lean PM. Our task is to see how it stands up to one of the best fat burners on the market in Instant Knockout.

We’re not into gimmicks, but if this approach works then we are all for it It does mean they will be giving us different things, ultimately we are after fat loss.

If a fat burner can do the following then it is a success in our eyes:

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

However, a nighttime fat burner isn’t going to increase energy.

Also, although Jacked Factory Lean PM says it will reduce appetite to stop you from craving food during the night, there doesn’t appear to be an epidemic of people walking to the fridge at 3 am.

They also say that their products promotes a good night’s sleep which we will also take into consideration.

Instant Knockout vs Jacked Factory Lean PM: Who Makes These Fat Burners?

Roar AmbitionInstant Knockout Review

The UK based team behind Instant Knockout is Roar Ambition.

They have a great online reputation with a lot of people taking to the net to post their before and after profiles from using their products.

Part of what makes them likable is the fact that they regularly amend their ingredients and dosages, ensuring the customer is getting the best version possible.

They also have a money back guarantee to make the purchase risk free.

Roar Ambition creates all their products to the approval of both the FDA and GMP.

If you are into endorsements then UFC fighter Diego Sanchez puts his name to this product. They also make a T-Booster called TestoFuel. This is endorsed by former Mr. Universe Robby Robinson.

Jacked FactoryJacked Factory Lean PM

Here is another company that does it all by the book, Jacked Factory are GMP certified and offer a 100% hassle free money back guarantee.

They sell well on Amazon but this isn’t always a good indicator. Some of the worst supplements we have reviewed manage to get favorable reviews on there somehow.

Also, there are a lot of sub-par products on Amazon which at times can reflect poorly on those that use it to sell their products.

This product is made in the USA and is free of stimulants of course.

They tell us that it is free of filler and dyes.

The Jacked Factory endorsements include Shaun ‘’Giant Killer’ Calrida. He is a 3x IFBB 212 Olympian. They also have national level bodybuilders on their roster.

With a wide range of products that include a PM testosterone booster and men’s multivitamins, they are a big player in the supplements world.

Instant Knockout vs Jacked Factory Lean PM Ingredients

This is where we can really tell these two apart.

We like that neither product uses proprietary blends as it means we can take a proper look at all the dosages.

The suggested servings are good for Instant Knockout. Their advice of one capsule 3-4 times a day will really spread out the fat burning benefits.

Of course, Jacked Factory Lean PM is to be taken before you sleep meaning the benefits will fade.

Mutual Ingredients

Vitamin B6

A good start from both products here as B6 is good for increasing energy levels. It uses fat and turns it into glucose so it can be used for energy.

The problem for Jacked Factory Lean PM is this added energy is pointless if you are taking B6 before you sleep. B6 is also linked with enhancing muscle performance.

It has been linked to promoting metabolism as well but the bulk of its benefits are lost on Jacked Factory Lean PM.

Their 10 mg is a good amount that won’t be put to best use. The 5 mg in Instant Knockout is another good amount that at least will be used properly.

Green Tea Extract

An excellent fat burning ingredient.

It is a proven thermogenic. This means it will heat the body up on the inside, causing it to burn fat to cool itself down. This works as you rest so it is good for both products here.

It is the catechins that are beneficial for fighting disease and are antioxidants. says that they are anti-obesity as well as anti-diabetic.

The endurance enhancing is only going to be of benefit to Instant Knockout.

WebMD says that Green Tea is a milder stimulant than the likes of Caffeine Anhydrous and it contains 2-4% Caffeine. This would usually give you a boost to your thinking and alertness.

Jacked Factory Lean PM only contains the catechins anyway.

The dosage of 500 mg in Instant Knockout is an excellent amount that will really get to work. The 300 mg in Jacked Factory Lean PM will be of use as well.

Black Pepper Extract

This is a bit of a bonus ingredient.

It doesn’t directly burn fat but enhances the capabilities of the other nutrients it is consumed with.

So, if the other ingredients are proven fat burners, this will make them even more useful. A good inclusion that is a very common one in supplements.

Individual Ingredients

Instant Knockout

Vitamin B12

A good ingredient for fat burning as it stops the body from storing as much fat.

It is not something our bodies create naturally which makes it a sensible idea to supplement. This is especially the case for vegetarians and vegans as good sources are meats, dairy, and fish.

B12 is also linked to fighting fatigue as it promotes red cell production.

The 10 mcg included is a good boost.


An effective T booster ingredient but how does it benefit fat loss?

Lower levels of Zinc are linked to storing more fat and it has also been shown to enhance glucose metabolism. says that Zinc has also been shown to improve mood.

The 10 mg included is an optimal dosage once again.


This is what you want from a fat burner – appetite suppressants.

It is a dietary fiber that swells in the stomach, making you feel full. Anything that can stop you from snacking between meals should be considered a useful ingredient.

It reduces the amount of sugar we absorb and promotes stable blood sugar levels that are good for preventing weight gain.

The 500 mg included is a big amount that will be of great benefit.


Another ingredient that regulates blood glucose levels.

WebMD says that Chromium can decrease LDL (bad cholesterol) levels in people who have lower blood fat levels.

It even works as an appetite suppressant by communicating with the brain to tell it the body is full.

With 10 mg here it is a useful amount from Instant Knockout.

Green Coffee Extract

A popular ingredient for fat burning, but also an effective one.

This is coffee before the color has been roasted out.

The roasting process is also what strips it of its highly beneficial chlorogenic acid. Since Green Coffee Bean is still high in this it means it will stop you from storing as much fat and reduce blood sugar levels.

WebMD mentions a study that looked into adults with obesity. It 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.

With 100 mg, you will get a good boost of the above.

Cayenne Pepper

Another great thermogenic ingredient.

Not done yet, Cayenne Pepper has also been found to work as an appetite suppressant. WebMD supports this by saying that it has been found to curve appetite, especially in those who do not already eat spicy foods.

At 100 mg you have enough to get these benefits.

Caffeine Anhydrous

Of course, a nighttime fat burner won’t include the likes of Caffeine Anhydrous. The problem with that is, it is a very effective fat burner.

Yes, the energy boost will be very useful but also it gets your metabolism going and even increases focus.

Anhydrous refers to the fact that it is the powdered form that is easily absorbed by the body.

With 350 mg included, it is a very good amount when taken across 3-4 servings.

Jacked Factory Lean PM


Not the most common ingredient here but as it is in a PM product, the benefit of Magnesium will be useful.

It promotes a good night sleep, helping to relax the muscles for a comfortable rest. Anyone low in Magnesium might struggle to relax and it even promotes quality of sleep.

WebMD says foods high in fiber are usually high in Magnesium so if you are getting enough of these it might not be completely necessary to supplement. does comment on its ability to promote sleep quality. They also tell us that a lack of Magnesium will raise blood pressure and reduce insulin sensitivity.

So, a useful ingredient for those low in Magnesium and the 150 mg included should be a good amount as well.


A useful ingredient for rest as it has calming effects.

This is why you will often see if used alongside Caffeine as it helps to deliver the energy boost in a calming manner. It helps with focus and for keeping you in control.

For fat burning, it is an unproven ingredient that doesn’t have the benefit of human trials to support it.

L-Theanine reduces the effects of stress on the body and promotes a good night’s sleep.

It could help boost metabolism and lower cholesterol but again, we would want more evidence of this to really get behind it.

The 200 mg dosage should help with the relaxing side though.


Another ingredient that doesn’t benefit the nighttime side of this product.

It is an appetite suppressant and a precursor to Serotonin which can improve mood.

It is also Serotonin that can reduce carb cravings – a little useless when asleep!

You don’t want to consume too much though so don’t take alongside other Serotonin boosting products as it can be linked to heart-related issues in higher quantities.

According to, any weight reduction from using this ingredient appears to be almost secondary to a reduction in food intake and is not too remarkable in magnitude.

So, the 150 mg isn’t spent on a proven ingredient anyway.


We can see why this has been included in a PM fat burner.

It promotes sleep and is a popular ingredient for helping users get a good night’s rest.

Melatonin is found naturally in the body and WebMD tells us that some people who have trouble sleeping have low levels of melatonin.

Also, it is linked to reducing the time it takes to actually get to sleep.

At 5 mg there should be enough for it to be of use.

Instant Knockout vs Jacked Factory Lean PM Side Effects

The good thing about both of these products is that neither contains anything you wouldn’t want to consume.

They are safe to use which is the main thing with any supplement.

Instant Knockout vs Jacked Factory Lean PM Pros and Cons

Instant Knockout Pros

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

Jacked Factory Lean PM Pros

  • Some effective ingredients
  • Safe to use

Instant Knockout Cons

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

Jacked Factory Lean PM Cons

  • PM fat burning not really beneficial
  • Missing key ingredients
  • Serving schedule not ideal

Instant Knockout vs Jacked Factory Lean PM

Winner: Instant Knockout

Buy Instant Knockout from:

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

An easy winner today with a product that is made up of quality ingredients and optimal dosages.

It is safe to say that the PM fat burner fad has not impressed us. We are yet to find a product that really stacked up against the better fat burners on the market.

The best fat burner out there is Instant Knockout anyway. No other product has come close so far which always makes it the benchmark product to beat.

Still, it is the best option if you want all of the great thermogenics, fat burners, metabolism boosters and appetite suppressants that it has to offer.

Buy Instant Knockout from:

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