Lean PM Review – Is This Jacked Factory Supplement Worth Using?

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By Leslie Waterson

Reviewed by Juliana Tamayo, MS, RDN - Last Updated

Lean PM Review

In today’s day of age, two big goals many have are getting better sleep and losing those few extra pounds to make themselves look and feel their best. If you’re one of those people, you may have learned that getting the right amount of sleep and cutting down those pounds can be far more challenging than you thought. That’s why many are turning to supplements to help them transform their body into the healthy machine they’d like it to be.

You can grab a fat burner for weight loss and a sleep aid for better sleep, but what if there was a supplement that provided both? Lean PM is a supplement listed as both a fat burner AND a sleep aid. So, how does that work? We are going to dive into how these two claims are more intertwined than you might think in this Lean PM review.

Lean PM By Jacked Factory

What is Lean PM?

LeanPM is a fat burner and sleep aid supplement from well-known supplement company, Jacked Factory. They aim to produce supplements that include only the highest-quality, research-backed ingredients with popular options such as Burn XT, Nitrosurge Pre-Workout, and – of course – Lean PM.

As a fat burner, Lean PM is refreshing in the sense that it does not use super gimmicky marketing to play into consumer egos. Instead of insane claims of losing 50 pounds overnight or buzz words like “extreme” or “shred,” – Lean PM advertises its list of natural ingredients and science-backed claims about how restful sleep promotes fat loss. Let’s deep dive into how effective this supplement may be in helping you reach your fat loss and sleep goals!

Lean PM Benefits

The main listed benefit of Lean PM is fat loss, hence its categorization of a fat burner. However, most fat burners contain sometimes atrocious amounts of caffeine. Lean PM contains zero stimulants and keeps you from getting anxious or experiencing jitters. Instead, Lean PM includes ingredients that promote restful sleep and help the body burn fat during rest. So, another benefit of Lean PM would be restful sleep.

Lean PM - Fat Burner

Lean PM Ingredients

Lean PM’s formula includes 6 main science-backed ingredients. These include Green Tea Extract, L-Theanine, Melatonin, Vitamin B6, Magnesium, and BioPerine. Below, we will give a more detailed overview of each of these ingredients and what they may provide.

Lean PM - Ingredients

Vitamin B6

Vitamin B6 is most well-known for its ability to support mental clarity and mood. Deficiencies in B6 have been linked to depression. However, B6 may also help jumpstart weight loss by reducing water retention and helping the body metabolize fat. 


Magnesium is not an ingredient you’d expect to find in most fat burners, but Lean PM is different in that it aims to promote restful sleep. Sufficient magnesium levels are crucial to experience a deep, restful sleep.

Green Tea Leaf Extract

Green Tea Extract is a common ingredient in fat burners and is well-known for its thermogenic effects and ability to assist fat burning and weight loss. It is also rich with antioxidants.


L-Theanine is another ingredient foreign to most fat burners. L-Theanine is an ingredient that promotes calmness and reduces stress, which would both lead to a more restful sleep as well.


5-HTP regulates serotonin production in the brain and can improve mood, sleep, and mental clarity, as well as suppress appetite. It fits nicely into Lean PM’s formula of relaxing, rest-promoting ingredients, and the appetite suppression is an added benefit to help experience weight loss.


Melatonin is a hormone naturally produced by the body that signals when it is time to sleep and keeps your body operating on a normal cycle of rest. Supplementing with Melatonin can help improve the ability to fall asleep and the quality of your sleep as well, which is why it’s no wonder that Melatonin is found in so many sleep aid supplements, including Relaxium Sleep, Beam Dream, and Dream EZ. While those supplements are dedicated sleep aids, though, Lean PM gets a bit of an extra boost by adding in the weight loss component.

Black Pepper Fruit Extract

Black Pepper Extract is present in this formula to promote the synergistic effects of all ingredients in the formula combined.

Does Lean PM Work?

In regard to losing fat – It depends. Lean PM will work as a supplement to an already appropriate diet and exercise regimen. To lose weight, you must be eating in a caloric deficit. If you are not, Lean PM will not magically help you lose fat despite a poor lifestyle. However, sufficient sleep is extremely important when it comes to fat burning and lean muscle development. 

In regard to improving sleep – Yes. Lean PM includes high-quality, effective ingredients that can make it easier to fall asleep and improve the quality of your sleep.

Lean PM - Increases in Metabolism

Who is Lean PM Best For?

Lean PM is best for someone who has trouble falling or staying asleep. Honestly, even if you are not looking to lose a lot of weight – Lean PM’s ingredients are so focused on quality sleep that it would still be beneficial if that were the only reason you were taking it.

If you are looking to lose weight, but don’t have trouble sleeping, it may not be as beneficial as it would for someone who needs to improve their sleep. There aren’t many other mechanisms by which this supplement helps “burn fat” other than promoting restful sleep.

Is Lean PM Safe?

If taken at the recommended dosage, the side effects of Lean PM should be minimal, if any at all. 5-HTP is the ingredient that could possibly offer some of those unwanted side effects. The most common side effects would be nausea and drowsiness. Some users are more sensitive to others, and the 150mg offered in one serving of Lean PM may also cause stimulation, making it difficult to sleep, instead of promoting sleep.

Make sure to follow the directions provided by the manufacturer and assess tolerance by taking one capsule for a few days, 40 minutes before bed, before moving to the full serving size of two capsules.

Where to Buy Lean PM

You can purchase Lean PM directly on the official Jacked factory website here.

Jacked Factory Lean PM Website

Lean PM is available in a variety of sizes and also offers a melatonin-free option. We will detail the pricing below.

Lean PM Pricing:

  • 30ct with Melatonin – $15.99
  • 60ct with Melatonin – $29.99
  • 120ct with Melatonin – $49.99
  • 60ct Melatonin Free – $29.99
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FAQ: Lean PM Review

How is the ingredient quality?

The ingredient quality of Lean PM is high. They were also very thoughtful with their formula and how the ingredients work together to create a more effective supplement. The Vitamin B6 and Green Tea Extract work together to support energy levels. The Melatonin, L-Theanine, and 5-HTP work together to reduce stress and promote restful sleep. The black pepper was included to increase the synergistic effect of all ingredients together.

Are the dosages right for each ingredient?

The dosages for each ingredient are sufficient to make them effective. Lean PM even recommends starting with half a serving to assess tolerance. If you were taking a full serving of two capsules a day, a $30 supply would last you 30 days which is a very fair price.

Is Jacked Factory Trustworthy?

Jacked Factory only uses science-backed ingredients in effective doses and does not include artificial ingredients or fillers. They have a good reviews across different platforms from their users. Although their supplements are manufactured in a cGMP facility, there doesn’t seem to be third party testing involved to ensure the purity of the ingredients, which some of the most trusted companies use.

How does Lean PM compare to alternatives?

It’s hard to compare Lean PM to other fat burners because it is so different in how it works versus a traditional fat burner. It would almost be more appropriate to label Lean PM as a sleep aid (which, to be fair, is one of the main listed benefits). Lean PM probably won’t suppress appetite as much as some other fat burners that are more geared towards making that happen with their ingredient selection.

 In fact, you could potentially use both a more traditional fat burner (which Jacked Factory also offers) and Lean PM, and there wouldn’t be much overlap in ingredients.

Is Lean PM a good value?

For the ingredients included, at the dosage included, Lean PM is actually a steal. It would be difficult, if not impossible, to buy these ingredients separately without paying a lot more than $30!

Should you use Lean PM?

Lean PM gets a high rating with one caveat – being judged more so as a sleep aid than a fat burner. It has clean and effective ingredients at effective dosage. It’s a very reasonable price. If you are having trouble sleeping, Lean PM could very well help assist you in reaching a more restful sleep.

More restful sleep leads to better recovery – which is everything if you are trying to build muscle and burn fat. Like with every other “fat burner” supplement, they only work in conjunction with a healthy diet and exercise. If you are doing those things already, Lean PM will assist you, even more, to help you recover from exercise to come back stronger, leaner, and feeling more rested for the next round.

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