Leanbean Vs Phen375 (2023 Review Upd.) Which is Better?

Lisa Lorraine Taylor, CPT
Published by Lisa Lorraine Taylor, CPT | Staff Writer
Last updated: December 3, 2023
We personally test every product featured in our reviews and guides. By ordering products anonymously and getting a group of independent testers, we are able to get first-hand experience and provide data-driven recommendations. Learn more.

With online advertising full of the latest and greatest dodgy weight loss pills and fat burners, you always have to be careful with these types of products.

But that doesn’t mean you should avoid all of them.

For a while, though, we have been having heated Leanbean vs Phen375 debates, so we decided to do some more in-depth research and testing.

Let’s start with the basics.

What Is Leanbean?

leanbean pink product bottle

Leanbean is a fat burner supplement claiming to boost your metabolism and melt away unwanted fat. However, it is unique because it has been formulated specifically for women.

While its main goal is dealing with fat reserves, we have also successfully used this product with female clients who needed to build muscle for different types of sports.

If you’ve ever bought a generic supplement product, you’ll often have to adjust for half a scoop to get the right nutrient balance for your physical size. And you won't need to do that with Leanbean.

  • All ingredients claim to be scientifically proven (more below)
  • Low amount of stimulants should help you avoid the jitters
  • Many users highlight the appetite suppression
  • We noticed higher levels of energy and less fatigue later in the day
  • For best results, you’ll need to remember to take it three times daily

Suited for Women



Overall Score 5.0

What Is Phen375?

Phen375 on top of a kitchen table

Phen375 is a fat burning supplement that claims to have been designed with natural ingredients that have been clinically proven to help deal with releasing stored body fat.

The basic theory behind Phen375 is that reducing your calorie intake is one of the best ways to limit your calorie intake, which is a process backed by a study published by the American Dietetic Association [1].

Phen375 fat burner does seem to have some carefully chosen ingredients (more on those shortly) that have thermogenic effects [2]. And with some positive reports of reducing those hunger cravings that lead to bad snacking, it should help you lose weight.

The one thing I would say about Phen375 is that women may need to reduce the dose to avoid some side effects like jitters and trouble sleeping.

  • Claims to use scientifically proven thermogenic ingredients
  • Very few side effects reported by users
  • Positive reports of suppressing hunger and cravings
  • Not specifically formulated for women

Reduced Hunger Cravings



Overall Score 4.8

Our Testing Approach

A number of our female clients were keen to evaluate the fat burners Leanbean and Phen375. To ensure a consistent and targeted test, we exclusively selected female participants.

We divided them into two groups, with each group trialing one of the products over a span of eight weeks.

Before initiating the test, we assessed their existing diet, workout routines, body fat percentage, and current weight loss pace to establish a starting point.

Both groups experienced positive results in fat reduction, as confirmed by body measurements. However, one product did slightly outperform the other.

List Of Common Fat Burning Ingredients

A fat burner supplement spilling out on the table

There really are only two natural ingredients that are the same or similar.

Similar product review: Transparent Labs fat burner review

1 - Chromium Picolinate

This trace element has been shown in studies to contribute to normal blood sugar levels [3]. When you replace the roller coaster effect with a stable energy level, you should be less likely to end up going to those unhealthy snacks.

Some people try chromium for body conditioning, including weight loss, increasing muscle, and decreasing body fat. Chromium is also used to improve athletic performance, to increase energy, and to prevent age-related mental decline.
- RxList.com

2 - Piperine/Cayenne Pepper

These fat burner ingredient function in similar ways in that they have been shown to improve how your digestive system absorbs nutrients. But cayenne pepper may also have thermogenic effects to burn off some extra calories.

Also read: Performance labs fat burner review

List Of Unique Ingredients

A close up shot of different supplements

This is where the Leanbean vs Phen375 fat burner research gets a little bit more interesting.

Unique Leanbean Ingredients

1 - Konjac Fibre

Also known as glucomannan, this fiber is known to help aid digestion and maintain a sense of fullness. It could be why so many women find it helps them bridge longer gaps between meals.


2 - Choline

This seems to be a clever choice of ingredient, as some research suggests that it’s tied to transporting fats to muscles [4].

This could otherwise become a bottleneck in your metabolism.

3 - Vitamin B6, B12

Vitamin Bs have been extensively tested to show how they tie back to overall energy levels. When you have a more steady supply of energy, you’re less likely to feel tired and resort to snacking.

4 - Chloride

This electrolyte won’t just help you stay hydrated, but using it as a supplement ingredient could also improve your digestion to absorb nutrients faster.

5 - Zinc

Zinc may play a role in many different body functions, including hormone levels and the metabolism of carbs.

6 - Green Coffee

This is the raw green coffee bean before it’s roasted to make your morning brew. In the raw form, it contains very little stimulants in the form of caffeine. But at the same time, it may provide antioxidants to help you better detox.

Other recommended fat burners for women: Powher fat burner review

raw turmeric that's turn to powder

7 - Turmeric

Many dietitians will suggest taking turmeric over caffeine as a natural fat burner [5].

The reason is that research suggests that it’s as effective without the negative side effects common with stimulants.

8 - Garcinia Cambogia

This Asian fruit is increasingly common in health food stores. One tip we got from a dietitian was that it’s not directly linked to boosts in your metabolism. Instead, studies have linked this fruit to suppressing appetite and hunger cravings [6].

9 - Acai Berry

I’ll come straight out and say that all the research we did doesn’t support many claims that acai berries directly support weight loss. However, there is evidence that taking these berries could boost your levels of antioxidants to better detox.

Unique Phen375 Ingredients

1 - Calcium Carbonate

I had personally never heard of this ingredient being used in fat burners or other supplements, but we did find some studies that reported positive effects for fat loss [7].

2 - L-Carnitine

This ingredient is quite common in sports supplements and is tied to the release of energy to fuel muscles.

A top view of coffee beans

3 - Caffeine Powder Anhydrous

Yup, your morning coffee could actually be helping you burn some fat. Caffeine is known to be thermogenic.

But you have to be careful, as increasing your intake of stimulants also increases your chances of feeling jittery. I never take it later in the day to avoid sleepless nights.

4 - Dendrobium Nobile Extract

Another ingredient I hadn’t heard of before has some scientific support that it could aid your digestion. However, results have been a bit mixed.

5 - Citrus Aurantium

Citrus aurantium has also been proven as an effective fat burner due to its thermogenic effects [8].

6 - Coleus Forskohlii Root

Some people believe that this ingredient is tied to effective AMP energy delivery to muscle cells. However, there is no conclusive evidence at the moment.

Do They Have Any Side Effects?

The good news is that we found very few reports of side effects from online reviews and our clients.

Unless you have any known allergies to any of the ingredients, you really should be fine. Reports of side effects from these products are uncommon.

However, the only side effects we did come across were related to Phen375 and the stimulants it contains. If you tend to be a coffee drinker, then it could happen that you get a bit jittery or find it difficult to sleep.

Leanbean Vs Phen375: Which Is Cheaper?


Based on the most recent prices and offers available on the official website, the price for a single bottle of each product is pretty much the same at just under $60.

However, there is a difference when it comes to bulk orders.

You’ll be able to order Phen375 in sets of 3 or 5 bottles for almost half the retail price per bottle.

Leanbean, on the other hand, offers 2 or 4 bottles for about 25% off the retail price.

Are There Potential Hidden Ingredients

Weight-loss supplements may not always be what they seem. Beyond their advertised ingredients, some have been discovered to contain undisclosed components, including prescription medications.

However, after careful analysis and looking at third-party test results for purity, both Leanbean and Phen375 don't look like they have any hidden ingredients.

What Are The Long-Term Effects?

When considering the longevity of results from weight-loss supplements, Leanbean stands out. Our research indicates that Leanbean not only offers benefits within a few weeks but also proves effective for sustained, long-term results.

Our testers are confident in its lasting impact as part of their weight management journey.


Does Phen375 Really Work?

Yes, Phen375 really does work. The formula has been designed to take advantage of ingredients that may burn fat and help you suppress your appetite, which leads to long-term weight loss.

Is Phen375 Thermogenic?

Yes, Phen375 is thermogenic, mainly due to the formula containing cayenne pepper and caffeine. There is plenty of scientific evidence to suggest these ingredients support your thermogenic metabolism.

Our Verdict on Leanbean Vs Phen375

After much deliberation over the test results, we have come to the conclusion that Leanbean is the better choice.

Both actually work well for the majority of our clients, but we did find better outcomes for losing some pounds and building muscle with Leanbean.

The formula is ideal for women, which is why we generally advise our female clients to try it first. And with the stimulant-free formula, you won't have to worry about jitters.

Our #1 Recommendation


Overall Score 5.0
  • Claims to use scientifically proven thermogenic ingredients
  • Very few side effects reported by users
  • Positive reports of suppressing hunger and cravings
  • Get the BEST PRICE until the end of December
  • For best results, you’ll need to remember to take it three times daily
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