Phen24 Review (2024 Update): How Legit Is It?

Lisa Lorraine Taylor, BSc, CPT
Published by Lisa Lorraine Taylor, BSc, CPT | Staff Writer
Last updated: June 20, 2024
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.

You may remember our PhenQ review. When I found out the same company also makes Phen24, I was curious about how it worked.

Phen24 claims to support the body’s weight loss process 24/7 with its unique pill formulas.

Our fitness experts dug deep to see if it was a legitimate weight loss supplement. As a certified personal trainer, together with my team, I spent a lot of time researching and testing the product and looking at reviews.

Let's now go through our Phen24 review.

What is Phen24?

Phen24 is a two-part weight loss supplement, where you get separate Phen24 pills that you take during the day and a different set of pills taken as a night fat burner.

The day pill and night pill have different fat-burning ingredients that support your metabolism to help with your weight loss journey 24 hours per day. We'll talk about the details as we go along this review.

How Does Phen24 Work?

Holding a Phen24 product outdoors

Phen24 works by supporting your metabolism and increasing your chances of losing weight.

Sounds simple as that’s basically how fat burners work.

I will talk more about the natural ingredients later in this Phen24 review, but first, let’s discuss how Phen24 works in helping your weight loss.

Phen24 daytime capsules are designed to support your weight loss efforts by helping you burn calories and ultimately lose weight. If you're wondering how much weight you can lose with Phen24, it varies depending on factors such as diet, exercise, and individual body composition.

Your metabolism works differently throughout the day. It makes sense to take different pills to address the varied needs of your body.

Based on 1st hand experience,, the Phen24 daytime pills increase your metabolic rate and cause thermogenesis (a process where the body burns fat by increasing its temperature) in response to weight gain.

These dietary supplements create a fat-burning action that can help you burn calories and lose weight faster.

Phen24 Banner

On the other hand, night capsules have an entirely different effect on your body. They focus on decreasing cortisol levels, promoting calmness, and reducing sugar cravings (late snacking is a difficult habit for a lot of us).


Phen24 Product CTA


Rated With Total Shape's Scoring System

Ingredient quality

How to use Phen24?

Use 1 daytime c with breakfast each morning and 2 night capsules with two glasses of water 15 minutes before dinner.

The Phen24 daytime capsules come in a 30-piece package, while the nighttime supplement comes in a package with 60 capsules, which is a one-month supply.

The company selected certain compounds that have been proven to function alongside your metabolism based on daily stress levels, including while you sleep.

What Are The Ingredients in Phen24?

Phen24 daytime capsules and night pills have different ingredients, but I think it’s important to understand each ingredient in this dietary supplement to ensure that it will work for you.

I did some research and let's see how each ingredient work in this Phen24 review.

Phen24 Day Formula

Supplement Facts for Phen24
  • Zinc: Based on the study found on the National Center for Biotechnology Information website, zinc citrate is excellent for boosting the body's metabolism, but it can also support digestion and nerve function in weight loss [1]. This essential mineral is vital to add to your diet when using Phen24. Our dietician mentioned that zinc has been proven to support overall weight loss, especially in individuals with obesity.
  • Manganese: Based on another study found on the National Center for Biotechnology Information website, manganese does a lot of work for the body, including energy production and regulating brain activity [2]. Your body naturally produces and stores a small amount of manganese, but a healthy diet will ensure that you get the full benefits. Many users say that they became more mentally alert throughout the day, which may have helped them focus on their work and gym time.
  • Copper: Why on earth would you want to consume a heavy metal? Your body needs a tiny amount to aid with energy and collagen production and iron absorption [3]. Indeed, this body fat burner helped our clients increase their energy levels to get the most out of their workouts every time.
  • Iodine: Iodine can help promote thyroid function. It doesn’t seem necessary in a supplement since most people get enough iodine in their diets [4].
  • Caffeine: A strong cup of coffee is one way to boost energy levels, but this Phen24 has caffeine to help get your day going. This ingredient is a natural fat burner, thus can improve physical performance and helping you lose weight. Our dietician thinks that the dosage of 150 mg per serving is enough to cause an increase in energy and metabolism, but it may also be enough for jitters or crashes to happen for caffeine-sensitive individuals. Researchers have found that caffeine increases metabolic rate and energy levels by triggering thermogenesis [5]. 
  • Guarana Extract: Guarana extract is derived from a Brazilian plant that contains caffeine. Commonly seen in energy drinks and other stimulants, guarana extract is a great supplement that can reduce fatigue, improve focus, prevent mood swings, and boost metabolic rate by 3-11% over 12 hours [6].
  • L-Phenylalanine: L-Phenylalanine is an essential amino acid, so you must ensure that you are getting enough in your diet. L-Phenylalanine acts similarly to appetite suppressants found in Phen24, but I didn’t find any studies that strongly support this notion (only data about obese dogs losing weight.) According to research, L-Phenylalanine reduces hunger and thus calorie consumption. This, in turn, promotes natural weight loss by encouraging the body to burn fat for energy [7].
  • Cayenne Powder: Commonly used in fat burners, the cayenne powder can help increase body heat and act as a natural fat burner for your weight loss journey [8].

Phen24 Night Formula

Supplement Facts for Phen24 Night
  • Ascorbic Acid: The main reason why the night capsules included vitamin C was that it supports and repair muscles, but I couldn’t find any studies to support this. Vitamin C may also boost the immune system and manage blood circulation and blood pressure. Research suggests that vitamin C (ascorbic acid) may help people lose and maintain weight [9].
  • Calcium D-Pantothenate: This ingredient is part of Vitamin B5 [10] and Phen24 claims it helps with memory and increases stamina, although I couldn’t find much research to support those claims about pantothenic acid. Our dietician mentioned that studies are confirming that calcium pantothenate can reduce morning stiffness and pain, which may help in improving the overall feeling of fatigue.
  • Pyridoxine HCL: It’s also known as Vitamin B6. Phen24 says it converts food into fuel to prevent it from being stored as fat. Vitamin B6 also supports protein metabolism and is vital for the nervous system [11].
  • Chromium: Chromium picolinate is often in fat-loss pills. It doesn’t do much to help you in losing weight, but research shows that diet pills act as an appetite suppressant [12]. In terms of appetite suppression, some users who practice intermittent fasting still felt full when they woke up, which helped them with their dieting efforts.
  • Thiamine HCL: Thiamine is more well-known as Vitamin B1. It has a vital role in your body's metabolism as it helps turn food into energy [13]. It has no direct impact on healthy weight loss, but it will be harder for you to lose weight if you are deficient in this vitamin.
  • D-Biotin: There are eight different versions of biotin, but D-biotin has full vitamin power. It supports metabolizing fats, protein, and carbohydrates. It is also known to boost your resting metabolic rate to help you burn more calories even when you’re sleeping. D-biotin is a water-soluble B vitamin that supports metabolizing fats, protein, and carbohydrates, and is also known to boost your resting metabolic rate to help you burn more calories even when you’re sleeping [14].
  • Molybdenum: Molybdenum is an essential mineral. Since you only need small amounts of it, your diet should get enough of it. It does have significant benefits, like removing dangerous toxins from your body [15].
  • Glucomannan: Studies support that glucomannan can make you feel fuller, thus working as an appetite suppressant. It can help you lose weight, especially when paired with a calorie-deficit diet [16]. Our clients noticed that they rarely have cravings since taking this pill, which may have helped them let go of their bad snacking habits.
  • Green Tea Extract: Green tea extract has many research studies on its health benefits. When it comes to metabolism, green tea extract has been clinically proven to boost metabolism and burn fat [17]. Since this ingredient contains caffeine, it only contains 40 mg per serving, which might be enough to increase metabolic rate without the tension.
  • Hops Extract: If you suffer from sleep deprivation, hops extract may help. Early studies suggest that hops extract can help improve the sleep cycle and quality [18]. Since I started taking this pill, I felt more refreshed and well-rested in the morning when I woke up. This is also one of the most common herbs used as a sleep aid, so it’s a very nice addition to the formula.

Phen24 Benefits

Phen24 is an intentional weight loss intervention that supports healthy weight management by improving glucose metabolism, boosting the immune system, and suppressing appetite. It's designed to aid you in achieving your weight loss goals effectively.

Based on my own personal experience and the experiences of my clients, the recommended way to burn more calories and avoid weight gain is to exercise more, eat a healthy and balanced diet, consume more dietary fiber, and get plenty of rest.

Products like Phen24 act as a booster to help you achieve your weight loss goals.

As I review Phen24 or any other dietary supplement, I want to reiterate that it is not a magical solution that doesn’t require any work on your end even if it's considered one of the best weight loss products in the market today. You still have to avoid junk food and get off the couch to see the best results.

Here’s a list of some of our recommended fat burners for men.

On that note, there are many ways Phen24 can help you lose weight faster, but in this Phen24 review, I narrowed it down to these 3:

1. Adjusts To Your Level Of Metabolic Activity

woman running

Your body's metabolism is more active during the day. While you’re sleeping, your body goes into Resting Metabolic Rate (RMR). It slows down and starts working on other body functions like digestion and blood circulation.

Phen24 adjusts to that, while most dietary supplements don't.

The day pill has more active ingredients (i.e. cayenne powder) while the night pill focuses on calming down your body while still working on the metabolism, making your body burn fat and calories more consistently throughout the day.

The night pill helped many users decrease their stress levels at night as well as avoid late-night cravings, which may have contributed to faster weight loss.

2. Aids In Weight Loss

Phen24 diet pills work every hour to help you lose weight faster. How much weight you lose depends on other factors, such as your exercise regimen.

It’s always working to boost and support your fat metabolism regardless if you are in the middle of a workout or a deep sleep.

The ingredients in both pills are there to give that extra effort to support both weight and fat loss. But the doses are quite lower than other fat burners.

3. Promotes Healthy Sleep

woman sleeping

People often overlook sleep as a way to fast weight loss.

The truth is that you need to rest so your body can repair and restore your body, thus sleep and rest is just as important as your diet and active lifestyle.

The night fat loss pill has ingredients to promote healthy sleep through stimulating calmness, which can help you fall asleep while giving you the best results.

Our clients noticed an improvement in their sleep quality, which may have helped them push through with work and exercise the next day.

Metabolisms can be tricky. Sometimes when you do all the right things, you still don’t feel positive slimming results. That’s why we formulated a new system that heightens the thermogenesis process according to your sleep and wake cycle so that you can wake up feeling slimmer with more noticeable energy.
- Angela MacRitchie, Certified Herbalist, Nutritionist, Naturopath, Phen24 Formulator

  • Unique formula to boost metabolism day and night
  • 100% vegan-friendly and all-natural weight loss supplement
  • Works as an appetite suppressant
  • Many users report that their energy levels increased
  • Can improve mental focus and alertness
  • Has vitamins and minerals to support overall weight loss
  • You would have to take 1 capsule during the day and 2 capsules at night
  • Way pricier than other fat burners

The company offers a money-back guarantee, so if you experience any adverse effects while using Phen24, you can contact them to get a refund.

Possible Side Effects


I couldn’t find a lot of reports of adverse side effects in this weight loss supplement.

Based on my research on the ingredients, it would be hard to get any side effects since it’s an all-natural supplement.

I could only see getting side effects from the caffeine. If you’re sensitive to it or consume caffeine from other sources, it may lead to jitters or some form of crash.

Based on our experience, the caffeine dosage isn’t enough to cause unwanted side effects, so that’s a plus.

The company offers a money-back guarantee, so if you experience any adverse effects while using Phen24, you can contact them to get a refund.


Phen24 Product CTA


Rated With Total Shape's Scoring System

Ingredient quality

Refund Policy, Price Guarantee, and Money-Back Guarantee

The manufacturers offer a 60-day money-back guarantee.

You only need to get in touch with them and return the unused item or even an empty bottle.

They will refund your money in full, minus the cost of delivery. PhenQ comes with a generous 60-day money-back guarantee, so you may test it risk-free.

This is only possible if you buy directly from them since buying from disreputable platforms could result in fake or expired Phen24 nighttime capsules, which isn't something the manufacturer intended.

Phen24 Reviews

Based on the Phen24 reviews, people who use the product achieved positive results when combined with a healthy diet and exercise routine. They could lose weight and burn fat, and some even consider it the best supplement they've used to lose excess fat.

Here are some reviews I found:

phen24 testimonial 2 phen24 testimonial

Fat Burner Alternatives


Created by the same company, our research shows that PhenQ is considered one of the market's oldest and most effective fat burners.

It uses all-natural ingredients like Phen24, but it targets five ways to lose weight, like blocking fat production and boosting focus, compared to just three with Phen24.

It has several ingredients that Phen24 doesn’t have in its formula, such as L-carnitine, nopal, and Capsimax powder.

It contains about the same caffeine content as Phen24, but it has the α-Lacys Reset® weight loss formula that has been scientifically proven to burn fat naturally and support your weight loss efforts.

Phen24, PhenQ is 100% vegan-friendly, but it is a 5-in-1 fat burner suitable for men and women who want to have a better time at the gym and a better quality of life.


Similar to Phen24, our review on LeanBean revealed that it is a vegan-friendly, all-natural female fat burner that intends to increase thermogenesis and suppress appetite for a more holistic approach to weight loss and maintaining a healthy weight.

It sources caffeine from natural sources, providing energy and a mental boost, and other thermogenic ingredients like green coffee bean extract and turmeric.

Like Phen24, it also contains glucomannan and chromium to support hunger control and B vitamins to reduce fatigue and strengthen the immune system.

Based on our tests, the main difference between the two is that LeanBean is formulated for women, and you would need to take 6 capsules per day, compared to just 3 with Phen24.

It’s an ideal fat burner and appetite suppressant for women of all shapes who want to burn excess fat and curb snacking.

Instant Knockout

Instant Knockout Cut is another vegan-friendly fat burner like Phen24 that speeds up fat metabolism and thermogenesis to burn calories and lose weight.

Similar to Phen24 weight loss pills, it uses caffeine and green tea extract to boost metabolism and glucomannan and chromium to regulate appetite.

However, it goes beyond adding L-theanine to improve cognitive function. It was also originally designed for professional bodybuilders and performance athletes, which can explain its high-dose ingredients compared to other fat burners.

This makes it an ultimate fat burner for serious athletes looking to maximize muscle strength and endurance and fitness enthusiasts looking to burn more excess body fat every session.



Is Phen24 FDA Approved?

Phen24 is not FDA-approved. Dietary supplements, unlike prescription medications, don’t need approval from the FDA for safety and effectiveness.

I always highly recommend investigating each ingredient to see if it has beneficial ingredients for proper protein and fat utilization.

Who Should Not Take Phen24?

People should not take Phen24 if they are:

  • Pregnant or nursing
  • Under the age of eighteen
  • Taking anti-depressants
  • Diabetic
  • Diagnosed with autoimmune disorders, cancer, liver disease, or kidney disease

Phen24 is suitable for most people, but you should consult with a health professional if it is a good option for your excess fat shedding efforts.

How Long Will One Box Last?

One box will last for 30 days. It has 30 of the Phen24 day pills and 60 of the Phen24 night pills. You take one day pill with your breakfast and two-night pills fifteen minutes before your evening meal.

How Long Does It Take To Start Seeing Results?

Every person is different, so it will vary how long it takes to see results. These variances become apparent upon reading Phen24 reviews. It can take time for your body to readjust to a new fat-loss pill.

Most people should see results within two months of taking Phen24 weight loss pills, but you could see a difference in weight loss within the first month.

Where Can You Buy Phen24 Weight Loss Pills?

You can buy Phen24 weight loss pills directly from their official website. It’s not possible to buy it anywhere else, but that’s a good thing. It ensures that you receive a genuine product and not a knock-off.

Is There A Money-Back Guarantee?

There is a 60-day money-back guarantee from the brand's official website. You have to return all unused dietary products (even empty bottles) to them, and then they will issue a full refund minus the cost of shipping.

Is Phen24 Vegan/Vegetarian?

Yes, the day and night pills are 100% vegan and vegetarian. It is considered one of the vegan community's best and most effective weight loss pills. If you have any dietary restrictions as a vegan or vegetarian, you may take Phen24 as it won't mess up your diet.

What Are the Long-Term Effects and Sustainability of Using Phen24?

Phen24 is designed for sustained use with a focus on long-term weight management, promoting a balanced approach to weight loss. Its natural ingredients support a healthy metabolism and energy levels, making it suitable for prolonged use as part of a balanced diet and exercise regimen.

What Specific Diet and Exercise Recommendations Should Be Followed While Using Phen24?

While using Phen24, it's recommended to maintain a balanced diet rich in nutrients and to engage in regular physical activity. A combination of cardiovascular exercises and strength training, along with a diet low in processed foods and high in fruits, vegetables, and lean proteins, can enhance the effectiveness of Phen24.

Our Verdict on Phen24

These fat-loss pills seem to be effective fat metabolism boosters. The natural ingredients are backed up by science to help your weight loss efforts every day.

If you're looking to keep things simple and achieve significant weight loss benefits, we'd suggest sticking to the old, proven way of adding PhenQ to your diet and exercise plan. PhenQ is a great weight-loss supplement that I often recommend to my clients.

Based on our extensive hands-on experience with the product, it will give you an extra push in the right direction and help you reach your weight-loss expectations, especially if you are working hard in the gym and are mindful of your food intake.
phenq before and after


We Recommend This Instead


PhenQ CTA Product

Rated With Total Shape's Scoring System

Ingredient quality
  • Suppresses your appetite
  • Blocks body fat production to stop weight gain
  • Improves your mood and energy levels
  • High-quality, all-natural formula
  • Get the BEST PRICE until the end of June
  • Can be only purchased through the company website
Was this article helpful?

About The Author

Lisa Lorraine Taylor, BSc, CPT
Staff Writer
Lisa Lorraine Taylor, BSc, CPT holds a BSc degree in Holistic Nutrition from Clayton College of Natural Health and is the owner of Taylor Made Fitness. Her philosophy centers on cutting through the hype and misinformation surrounding dietary supplements, focusing instead on practical, science-backed strategies for health and weight loss.
Learn more about our editorial policy
Dr. Harshi Dhingra, MBBS, MD is a published peer-reviewed author and renowned physician from India with over a decade of experience. With her MBBS from Bharati Vidyapeeth and an MD from Rajiv Gandhi University, she actively ensures the accuracy of online dietary supplement and medical information by reviewing and fact-checking health publications.
Learn more about our editorial policy
Dr. Kristy June Dayanan, BS, MD is an author with a BS degree from University of the Philippines and an MD from University of Perpetual Help System. Her ability to simplify medical science complexities and dietary supplement jargon for the average reader makes her a valued medical fact checker and reviewer.
Learn more about our editorial policy

You May Also Like

Your best guide to the sexiest female golf players
By Christiana Mikesch, CPT 1 month ago
23 Hottest Female Golfers (Updated Daily)
Your guide to hottest female tennis players
By Christiana Mikesch, CPT 1 month ago
12 Hottest Female Tennis Players (2024 Updated)
Hot Female basketball player posing
By Christiana Mikesch, CPT 1 month ago
11 Hottest Female Basketball Players (2024 Updated)
Your best guide to Herbalife Prolessa Duo
By Lisa Lorraine Taylor, BSc, CPT 10 hours ago
Herbalife Prolessa Duo Review (2024) Legit or Just a Scam?
Healthy couple smiling with Lipcide Extreme supplement
By Lisa Lorraine Taylor, BSc, CPT 10 hours ago
Evogen Lipocide Xtreme Review (2024) Legit or Just a Scam?
Top view of Xenadrine supplement product
By Lisa Lorraine Taylor, BSc, CPT 10 hours ago
Xenadrine Review (2024 Updated) Legit or Just a Scam?

2 thoughts on “Phen24 Review (2024 Update): How Legit Is It?

  1. This product definitely worked for me. Although the night pills left me sleepless. Overall, it increased my energy and reduce my hunger.

Write a Reply or Comment

Your email address will not be published. Required fields are marked *

Our ingredient quality score is based on 3 factors including: purity, source, and stability of shelf life. Third-party liquid chromatography lab tests are performed to determine purity. The score is an objective measure of the lab results and factors measured against set standards. For more information see our ingredient quality score explanation here.
Our price score is based 3 factors including: cost justification, market comparison, and overall value. The score is a subjective measurement of the product's value against its price when compared to similar products. For more information see our price score explanation here.
Our scoring system is the result of objective testing data and subjective expert analysis by a team of fitness coaches and medical experts. Our scoring factors are weighted based on importance. For more information, see our product review guidelines.