Tyler Sellers
Published by Tyler Sellers
Fact checked by Donald Christman, BHSc FACT CHECKED
Last updated: March 23, 2021

You may remember when I reviewed PhenQ. So when I found out the same company also made Phen24, I was curious about how it worked.

Do you ever wish you could lose weight while you sleep? Phen24 claims to do precisely that with its unique day and night formulas -- it claims to support the body’s weight loss process 24/7.

Our fitness experts dug deep to see if it was a legitimate weight loss supplement. We spent a lot of time researching their ingredients and looking at reviews.

Here is our Phen24 review.

What is Phen24?

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

The day pill and the night pill have different weight loss ingredients that support your metabolism and help you lose weight 24 hours per day. We'll talk about the details as we go along this Phen24 review.


How Does Phen24 Work?


Phen24 works day and night to support your metabolism and increase your chances of weight loss.

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

I’m going to talk more about the natural ingredients later in this Phen24 review, but first, let’s discuss how does Phen24 work in helping you lose weight.

During the day, you tend to move a lot regardless of if you’re exercising or not. The activity causes your metabolism to increase and need more calories to keep up.

Your metabolism works differently throughout the day and night. It makes sense to take different pills to address the variety of needs for metabolic.


If your body doesn’t get those calories through food, it will start using stored fat to fuel your energy levels.

The Phen24 day pills increase your metabolic rate and cause thermogenesis (a process that increases body heat) in response to weight gain.

It creates a fat burning action that can help with weight loss. The Phen24 day system also increases your energy levels, promotes thyroid function, and reduces fatigue.

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On the other hand, the Phen24 night supplement has an entirely different effect on your body. Because your metabolism slows down while you’re sleeping, you don’t necessarily want to increase it while you snooze.

The Phen24 night pills focus on decreasing cortisol levels, promoting calmness, and reducing sugar cravings (The late snacking is a difficult habit for a lot of us!).

It also has ingredients that repair muscles, remove harmful toxins from your body, and improve your sleep quality.

Phen Comparison Articles:

What Are The Ingredients in Phen24?

The Phen24 ingredients are different in the day capsules and night pills, but I think it’s important to understand each ingredient in this dietary supplement to ensure if it will work for you.

I did some research, and here is what I found on the effectiveness of the Phen24 formula.

Phen24 Day Formula

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  • Zinc: Phen24 weight loss supplement says that zinc citrate is excellent for boosting the body's metabolism, but it can also support digestion and nerve function [1]. The essential mineral is vital to add to your diet when using Phen24. Otherwise, you could lose energy caused by a deficiency.
  • Manganese: 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.
  • Copper: Why on earth would you want to consume a heavy metal? Your body needs a tiny amount to aid with energy production, produce collagen, and absorb iron [3].
  • Iodine: Iodine can help promote thyroid function. It doesn’t seem necessary to need it in a supplement since most people get enough iodine in their diets [4]. It’s one ingredient that doesn’t seem needed to make effective dietary supplements.
  • Caffeine: A strong cup of coffee is one way to boost energy levels, but this weight loss supplement has caffeine to help get your day going. This ingredient is a natural fat burner, thus can facilitate weight loss and improve physical performance.
  • Guarana Extract: Guarana is a Brazilian plant that contains caffeine and commonly seen in energy drinks and other stimulants. It’s a great supplement that can reduce fatigue and improve focus and reduce fatigue. One benefit of guarana extract is it can boost your metabolism by 3-11% over 12 hours [5]. Using PhenQ may give you the same metabolic spike to help you lose weight.
  • L-Phenylalanine: L Phenylalanine is an essential amino acid, so you need to ensure that you are getting enough in your diet. Using Phen24 may help suppress your appetite, but I didn’t find any studies that strongly support this notion.
  • Cayenne Powder: There are a lot of benefits of cayenne powder. The central aspect is that it can help produce body heat and act as a fat burner for your weight loss journey. Cayenne pepper is a common ingredient in most fat burning supplements that help you burn fat effectively.

Phen24 Night Formula

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  • Ascorbic Acid: Vitamin C is the more common term, and the essential vitamin has many benefits. The main reason why Phen24 night capsules included it was that it supports and repairs muscles, but I couldn’t find any studies to support this. Some benefits of Vitamin C include boosting immunity and possibly managing blood circulation and blood pressure.
  • Calcium D-Pantothenate: This ingredient is part of Vitamin B5 [6]. Phen24 claims it helps with memory and increases stamina, although I couldn’t find much research to support those claims about pantothenic acid.
  • Pyridoxine HCL: It’s also known as Vitamin B6. Phen24 says it converts food into fuel and furthers your weight loss goals. Vitamin B6 also supports protein metabolism and is vital for the nervous system [7].
  • Chromium: Chromium picolinate is often in weight loss pills. It doesn’t do much to help you in losing weight, but research shows that it can help with reduced cravings and appetite [8].
  • Thiamine HCL: Thiamine is more well-known as Vitamin B1. It has a vital role in metabolism as it helps turn food into energy [9].
  • D-Biotin: There are eight different versions of biotin, but D-biotin has full vitamin power. It supports metabolizing fats, protein, and carbohydrates.
  • Molybdenum: Molybdenum is an essential mineral. Since you only need small amounts of it, your diet should get enough of it. It’s rare to need supplements for it. It does have significant benefits, like removing dangerous toxins from your body [10].
  • Glucomannan: Studies support that glucomannan can make you feel fuller. It can help you lose weight, especially when paired with a calorie-reduced diet [11]. It is one of the natural ingredients most weight loss supplements have.
  • Green Tea Extract: Green tea has many research studies to back-up its health benefits. When it comes to metabolism, green tea extract has been clinically proven to boost the metabolism and aid in fat burning [12].
  • Hops Extract: If you have sleep deprivation, then hops extract may help. Early studies suggest that it can help improve sleep quality [13]. I think there need to be more studies to confirm that it helps with sleep deprivation, but it’s a promising benefit.


The recommended way to achieve weight loss and avoid weight gain is to exercise, eat healthily, consume dietary fiber, and get plenty of rest.

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

As I review Phen24 or any other weight loss 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 as 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.

On that note, there are many ways Phen24 can help your weight loss journey, but I narrowed it down to these 3:

1. Adjusts To Your Level Of Metabolic Activity

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

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

The day time has more active ingredients (ie cayenne powder) while the night time focuses on calming down your body while still working on the metabolism, making your body burn calories consistently all throughout the day.

2. Aids In Weight Loss

Phen24 works every hour to help with weight loss.

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

The ingredients are there to give that extra effort to support weight loss and fat loss as well.

3. Promotes Healthy Sleep

woman sleeping

People often overlook sleep as a way to lose weight.

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.

Phen24 night pills have an ingredient to promote calmness, which can help you fall asleep while giving you the best results in weigh loss.

You can take it about 15 minutes before your night meal to maximize the benefits.

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, and Phen24 formulator.

Side Effects


I couldn’t find a lot of reports of negative side effects.

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

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.

The company offers a 60 day money back guarantee, so if you experience any adverse effects while using Phen24, you can contact them to get a refund.


Other products we've reviewed:

Phen24 Reviews

Based on the reviews I read, people who use Phen24 achieved positive results when combined with a healthy diet and exercise routine. They were able to lose weight and unwanted body fat and some even consider it as the best weight loss supplement they've used.

Here are some Phen24 reviews I found:

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Is Phen24 FDA Approved?

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

I always highly recommended investigating each ingredient to see if it has beneficial ingredients. It does take extra time, but it’s worth it if you want weight loss supplements that work. Also, you may take advantage of the money back guarantee from the company's official website.

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 weight loss. Also, this product isn’t certified vegan, so if you’re in a purely plant-based lifestyle, you may want to check our recommended vegan fat burners instead.

How Long Will One Box Last?

One box lasts for 30 days. It has thirty of the Phen24 day pills and sixty of the Phen24 night pills. You take one day capsule with your breakfast, and take two night pills fifteen minutes before your evening meal. You may also order three boxes and get two boxes for free, giving you a five month supply.

How Long Does It Take To Start Seeing Results?

Every person is different, so it will vary on how long it takes to see results. It can take time for your body to readjust to new weight loss pills.

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

Where Can You Buy Phen24?

You can buy Phen24 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 the 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 any unused product (even empty bottles) to them, and then they will issue a full refund minus the cost of shipping.

Is Phen24 Vegan/Vegetarian?

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

Should You Buy Phen24?

Phen24 day and night supplements seem like an effective metabolism booster.

The fact that they have separate pills to help your metabolism so you burn fat at night is a huge benefit. It gives you a little edge to help you with weight loss and avoid weight gain.

The natural ingredients are backed up by science to help you with weight loss all day every day.

If you need a little extra push to achieve your weight loss goals, adding Phen24 to your diet could possibly help. It’s especially true if you are working hard in the gym and are mindful of your food intake.

You can purchase it directly on their website here. Let us know your results! We’re always interested in learning more about how supplements are helping you.

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  • Adjusts To Your Level Of Metabolic Activity
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  • Promotes Healthy Sleep
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