Transparent Label

Jacked Factory are a well known and well respected supplement company that strive to be as open and honest as possible. They refuse to use proprietary blends (a common practice in supplements) as this practice is often used to disguise low doses of ingredients.

Solid Reputation

Jacked Factory have built their reputation on providing supplements that contain a small amount of highly effective and well dosed ingredients, rather than a lot of filler ingredients.

Naturally Amplify Fat Loss

Lean XT is a stimulant free fat burner which promises to naturally amplify fat loss, increase your metabolism, suppress appetite, and inhibit fat storage.

It can also be combined with another one of Jacked Factory’s products: Burn XT, which contains large amounts of caffeine, capsicum, green tea extract, and Acetyl-L-Carnitine.

In this article we will take a look at the individual ingredients and their doses, before reviewing the supplement as a whole.

Ingredients List

There are only four ingredients contained within Lean XT, and one of those ingredients

For Absorption

(Bioperine) is only there to increase the absorption of the other ingredients – though it may also produce a small fat burning effect on its own.

We will look at the three main ingredients:

  • Acetyl-L-Carnitine
  • Green Tea Extract
  • Coleus Forskohlii Root Extract

We will review their benefits and look at the doses to see how effective they are.

Acetyl-L-Carnitine (750mg)

L-Carnitine is a common supplement ingredient that has been shown to reduce body fat, but mainly in people who are deficient in L-Carnitine.

Reduce Fatigue

It can also reduce fatigue and muscle soreness, along with many other great benefits, which makes it a great ingredient for a pre-workout, post-workout, and fat burner.

Particularly if you have had a tough workout the day before. It has been shown to suppress appetite when combined with Omega-3 (EPA), so you should think about adding Cod Liver Oil to your supplement list for even better results [1].


It should also be noted that this ingredient has a very good dosage.

Green Tea Extract (500mg)

This is interesting as technically Green Tea Extract is stimulatory. It may not be quite the same as 300mg+ of caffeine, but it still counts!

Fat Burning Ingredient

We can forgive Jacked Factory for this though as Green Tea Extract is an incredible fat burning ingredient, that can also increase daily metabolism. Decent dosage, should get you some nice fat burning results.

Coleus Forskohlii Root Extract (150mg)

A supplement ingredient that can reduce body fat, reduce fatigue, and increase lean mass and testosterone levels.

Increase Bone Density

It may also increase bone mineral density which is a great additional benefit, but not one that many fat burner customers would care too much about.

This Coleus Forskohlii Root Extract contains 30mg of Forskolin (20%) which is a very decent amount.


A good dose would be 50mg of Forskolin per day, so you may need to take two capsules for the full effects [2].


Containing only three ingredients (plus Bioperine), LEAN XT by Jacked Factory lives up to its name, by avoiding the bloated ingredient list that most fat burners contain.

The Green Tea Extract is the most important ingredient here, and it is technically a stimulant although don’t worry because it’s decaffeinated.

So if you are looking for a completely stimulant-free fat burner then you might want to avoid it. But if you are just looking for a very effective fat burner you need to get your hands on a pack!

Read our Top 10 best stimulant-free fat burners for 2018




[1] Mantovani, G., Maccio, A., Madeddu, C., Serpe, R., Massa, E., Dessi, M., Panzone, F., Contu, P. 2010. Randomized phase III clinical trial of five different arms of treatment in 332 patients with cancer cachexia. The Oncologist 15(2): 200-11



View More Top Supplement Lists:

Top 10 Best Stimulant-Free Pre-Workout Supplements For 2018

Top 10 Best Post Workout Supplements for 2018

Top 10 Best Natural Testosterone Boosters For 2018

Top 10 Best Estrogen Blockers for Men in 2018

Top 10 Best Fat Burners For Men in 2018

Top 5 Best PM Fat Burners For 2018