Updated: 12/07/2017

A diet product’s worth depends on whether it helps people lose weight. Let’s find out if this product works. We at DietSpotlight conducted an in-depth anaylsis, examining the ingredients, side effects, clinical research and customer service to give you this in-depth PhenQ review. Furthermore, we took the time to read many user comments that are posted online. At this point, we summed up the information we collected to give you the facts you need.

PhenQ Readers: Click here to find out why we're giving away samples of our product, Burn HD.

What is PhenQ?

Alright, let’s get to the bottom of this.

To start, PhenQ diet pills is boasted as a pharmaceutical-grade supplement for weight-loss. It’s manufactured by ERGO Group Limited. According to the official website, this product helps elevate mood, boost energy levels, burn off stored fat, suppress appetite and block the production of fat.

To use it, you must take one tablet with breakfast and one with lunch. You are encouraged to avoid taking this product after 3 pm, because it can interrupt sleep habits. It contains:

PhenQ also contains Nopal (prickly pear cactus) and l-carnitine fumarate. Unfortunately, the actual amount of each ingredient is not disclosed.

PhenQ uses a blend of key ingredients to stimulate weight-loss and produce dramatic results in a shorter amount of time than some competitor supplements. This product claims to offer an effective way to aid your weight-loss journey and lose extra pounds, and it’s especially useful for getting rid of stubborn fat.

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PhenQ Ingredients


Now is probably a good time to dive into the ingredients and take a closer look at what each one is designed to accomplish, along with any scientific evidence behind it.

A-Lacys Reset: A-Lacys Reset is a patented blended formula created by scientists from alpha-lipoic acid and cysteine. This main PhenQ active ingredient has been clinically tested for weight-loss efficiency and is primarily used in PhenQ products.

This formula is at the heart of this supplement and is responsible in large part for the favorable results users document. Alpha-lipoic acid and cysteine are both powerful ingredients on their own, but when blended together, they can burn even more fat and help users drop more weight.

Capsimax Powder: The ingredients included in PhenQ’s capsimax powder include capsicum, piperine, caffeine, and niacin. These ingredients blend together to produce a fat melting effect, each supporting the function of the others.

Capsicum and capsinoids are known to increase energy and decrease body fat. Ingesting foods and supplements containing these ingredients activates a thermogenic effect that has been specifically noted for its ability to activate brown adipose tissue (BAT) and burn more calories in humans.

To put it simply: Thermogenesis is defined as the process of heat production in humans.

This increase in body heat stimulates energy and allows the body to burn more calories. Both human and animal studies produce similar results in regards to capsicum consumption, and they both point to heightened energy and enhanced weight loss.

Not only is capsicum a good agent for stimulating fat burn, but it is also perfect for preventing obesity.[1][2][3]

Piperine: Piperine is the spicy chemical in black pepper that gives it its signature taste.

One study conducted on obese rats documented dramatic changes in body weight, fat mass, and cholesterol with only 40 mg/kg of Piperine supplementation per day. No changes in diet were made, yet with the consumption of this chemical, the rats were able to achieve significant weight-loss in a short period of three weeks.[4]

Alpha-lipoic Acid:
Alpha-lipoic acid is an antioxidant that is commonly found in foods like spinach, potatoes, and broccoli. It’s beneficial for its ability to prevent cell breakdown in the body and restore vitamin levels. The body also uses this chemical to break down carbohydrates and create more energy for the body.

This is another reason why it is a key ingredient in this product.

An accelerated breakdown of carbohydrates and increased energy helps the user burn more calories and cut fat.[5][6]

Alpha-lipoic acid’s ability to help overweight and obese patients lose weight is verified by clinical studies. It has already been proven several times that it can decrease body weight in rodents, but most importantly, it has also been able to minimize fat and reduce weight in humans.

One randomized, double blind, placebo controlled trial tracked 360 obese men and women for twenty weeks. In the end, the group receiving 1800 mg of alpha-lipoic acid per day lost significantly more weight than the placebo group, which led to this ingredient being regarded as a possible treatment for obesity.[7]

Cysteine: Cysteine is a semi-essential amino acid which plays a role in structuring many proteins. It is found in foods that are high in protein including meat, eggs, dairy products, peppers, garlic, oats, lentils, and other high-protein plants. In addition to carrying out key functions in human and animal bodies, it is also used in various flavoring and cosmetic products.[8]


Cysteine is included in the A-Lacy Reset formula to help users lose even more weight – bring on more research!

In one study, patients of an obesity hospital clinic were administered a treatment which included cysteine for six months. At the end of the trial period, the patients had lost a modest amount of weight, and researchers credited the treatment for this improvement.

Cysteine is included in PhenQ for its science-backed ability to aid in weight-loss. When combined with alpha-lipoic acid, the effect doubles, and weight-loss and fat loss becomes more enhanced.[9]

Caffeine: The caffeine included in this blend also has powerful weight-loss benefits. Caffeine is commonly found in coffee, tea, chocolate, ice cream, and soft drinks, and it comes from coffee beans, tea leaves, cocoa beans, and kola nuts. At least one study indicates that taking higher amounts of caffeine can lead to weight-loss because of thermogenesis and increased fat burn.[10][11]

It’s also a good idea to take the caffeine in this supplement into account when monitoring your additional caffeine intake. Try to cut back on coffee and soft drinks while on PhenQ to avoid jitters and other side effects of caffeine overload.

Chromium Picolinate: Chromium Picolinate is a key ingredient in many weight loss supplements. Chromium is a common mineral, and it is also regarded as an essential trace element. This means that very little is actually needed for the health and well-being of the human body. This mineral improves the way the body uses insulin, and as a result, stimulates satiety when eating carbohydrates.[12]

For this reason, it is included in the PhenQ formula. It works to suppress appetite and make users feel more satisfied faster so that they won’t reach for seconds or feel the urge to binge eat.

Magnesium Stearate: Magnesium stearate is a chemical that is also regarded as a soap. It is included for consistency and acts as a lubricant in pharmaceuticals and pills like PhenQ. It helps to keep vitamins and other supplements from sticking to one another and machinery during production. It is not necessarily included in this product to enhance weight loss, but it is important for producing the end result and for manufacturing purposes.[13][14]

This ingredient does not offer any major weight-loss benefits, but it can cause some unpleasant side effects. Considered a toxin, when taken in large doses, magnesium stearate can cause skin damage and liver toxicity.

phen q nutrition facts

Nutritional Facts

PhenQ Nutrition Facts

Let’s turn our attention to the nutrition facts of this supplement.

At two PhenQ tablets per day, taking PhenQ will only add a few extra calories to your diet.

The good news? These calories can help you burn even more calories and cut fat – so you don’t have to worry about them too much.

Each daily dose of PhenQ provides:

  • 625 mg of Calcium Carbonate
  • 150 mg of Caffeine Anhydrous
  • 142.5 mg of L-Carnitine Furmarate
  • 25 mg of A-Lacy formula
  • 20 mg of Nopal
  • 3 mg of Piperine Extract
  • 80 mcg Chromium Picolinate

In addition to helping users lose weight, these ingredients also add fiber, vitamins, antioxidants, and minerals to the user’s diet – which adds some important nutritional value.

The calcium in this supplement, for example, supports bone health and helps to prevent osteoporosis and other bone diseases. The Nopal adds fiber and antioxidants which improve digestive health, satisfy hunger cravings, and prevent cell damage. The Niacin, or Vitamin B3, boosts health and wellness and even helps to lower bad cholesterol.

Side Effects

PhenQ Side Effects

Ah, side effects. The lingering dark cloud hanging over each and every supplement out there. The question is always the same: “Should I worry about them?”

Even though PhenQ uses natural ingredients and is considered a natural supplement, some of its components may bring about unwanted side effects.

Potential PhenQ side effects include:

  • Headaches
  • Restlessness
  • Nausea
  • Diarrhea

Some ingredients, such as Chromium Picolinate, impact blood sugar and may interact negatively with diabetes medications.

If your side effects are severe, stop taking PhenQ immediately and, if necessary, seek medical help.

Pregnant and breastfeeding women should also avoid PhenQ altogether. Children under the age of 18 should also avoid taking the PhenQ supplement.

PhenQ Alternatives

If you’re looking for something similar or just want to compare prices, I’ve done some research on PhenQ alternatives.

When examining PhenQ vs Phentermine and PhenQ vs Duromine, it’s important to note that Phentermine and Duromine are prescription drugs administered by a doctor. People often ask, does PhenQ have Phentermine? The answer is no.

When comparing PhenQ vs Phen24, Phenelite, Phentaslim, and Phen375, I do notice some similarities. They are all weight loss supplements that produce a fat burning, appetite suppressing effect. However, PhenQ is the only one that uses the patented A-Lacys Reset formula – so that may give it an edge.

On a different note, when we compare PhenQ vs Hydroxycut and PhenQ vs Garcinia Cambogia, we see very different lists of ingredients. Garcinia Cambogia, a key weight-loss ingredient in many products, is not present in the PhenQ formula, and Hydroxycut only shares one ingredient with PhenQ – caffeine.

All of these products are weight-loss supplements that may work, but they are not necessarily the same as PhenQ diet pills.


PhenQ Benefits

We now turn to some claims and promises PhenQ offers potential buyers.

  • Enhanced energy
  • Increased fat burn
  • Vitamins and minerals
  • Fiber
  • Weight loss

A list like this is nothing new, but the research I provided above actually does support these benefits to some extent.


What Does PhenQ Cost?

OK check it out: The PhenQ price may vary depending on whether there is a promotion or sale taking place. The usual price for one bottle of 60 PhenQ weight-loss pills is $79.95.

The price of PhenQ has gone down to $69.95 per bottle when on sale.

The price is a bit high, but if the supplement works, it may be worth it.


PhenQ Directions

Each bottle contains 60 PhenQ pills and the user is directed to take two capsules per day. The This means that each bottle should last you around one month when taken as directed.

It is advised that users take one in the morning with breakfast and the second one around lunch time.

Tip:Do not take PhenQ weight-loss pills during the evening or before bed because of the caffeine.

While the PhenQ dosage is two pills per day, some people may take less than the recommended PhenQ dosage and apparently still experience weigh- loss.

PhenQ For Weight Loss

You might be thinking, “Is PhenQ good for losing weight?”

Unfortunately, this can’t be answered with a simple yes or no. The majority of people who use PhenQ for weight loss don’t seem to be getting the results I had expected after researching the ingredients.

Very few use it for antioxidants, energy, or fiber, but the positive comments seem to be surrounding these benefits – not weight loss.
PhenQ For Weight Loss

Bottom Line

The Bottom Line – Does PhenQ Work?

Now the moment you’ve been waiting for: our bottom line on PhenQ diet pills. First of all, we appreciate that this formula is sold with a 60-day money-back guarantee and there’s some solid research behind some of its ingredients.

There are just a few things I can’t get over:

  • No scientific research backing the formula
  • Lackluster customer reviews online
  • Higher price tag than I was expecting
  • PhenQ contains 25mg of the main ingredient. Science says you need 1800mg a day.

If you’d like to get rid of some serious pounds, you should grab a product that contains clinically-tested ingredients for weight-loss, sells at an affordable price and is backed by plenty of encouraging user reviews.

Among the best products on the market is BurnHD. The supplement uses a proprietary blend of four ingredients. All shown in published research to boost metabolism, increase energy and burn fat.

Also, we’re so confident that you’ll love our supplement that we’re offering a Special Trial Offer, which is a good sign.

Learn More About Burn HD »
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What are the side effects of PhenQ?

Possible PhenQ side effects may include headache, nausea, digestive issues, jitteriness, trouble sleeping, anxiety and upset stomach. This is according to some customer feedback posted online.

What is in PhenQ?

PhenQ ingredients are a-Lacys Reset, capsimax powder , calcium carbonate, chromium picolinate, caffeine, nopal (cactus), and l-carnitine furmarate.

How do I know if PhenQ is right for me?

Choosing the right product is the #1 question asked by DietSpotlight readers. We recommend trying any product before buying it and know that finding a product with a sample offer is near impossible - so we created our own product, Burn HD, with scientifically backed ingredients.

Click here to get your sample of our powerful fat burner today.

What is the active ingredient in PhenQ?

It looks like the active ingredient is caffeine, as the others are not backed by strong science pertaining to weight-loss.

Who makes PhenQ?

BUQ Group makes PhenQ.

What are PhenQ results?

Well, first of all, it’s unclear how much of each ingredient is actually used in PhenQ. While this supplement does contain some interesting components, if the quantities are low, they may be ineffective. Chromium is a mineral found in this diet pill, and it has been shown to help balance blood sugar levels. Caffeine is also included in this formula. This stimulant may help boost metabolism, while enhancing energy and focus.

How much does PhenQ cost?

The price of PhenQ is $69.95 per bottle. It’s available directly from the official website.

How should I take PhenQ?

The directions say to take one PhenQ pill each morning with breakfast, and one again with lunch. Individuals who are sensitive to caffeine should limit their intake of caffeinated beverages like coffee. Just so you know, a single bottle lasts for 30 days.

Is PhenQ available in stores?

No, PhenQ is not available in stores. It’s only sold via the official website.

Do you need a prescription to acquire PhenQ?

No, there is no prescription needed to buy PhenQ pills.

Is diet and exercise required with PhenQ?

No, there is no specific diet or exercise program required with PhenQ.

PhenQ Ingredients

PhenQ is a heavily marketed diet pill available all over the internet. The ingredients are listed on the official website, but we had to look elsewhere to find an actual label with amounts included in the formula. There are a few clinical references offered, but they include research into mood and exercise.

PhenQ Ingredients and Supplement Facts

Serving Size: 1 Capsule
Serving Per Container: 60
Amount per Serving% DV
Calcium Carbonate625mg*
Caffeine Anhydrous150mg*
L-Carnitine Fumurate142.5mg*
Magnesium Stearate10mg*
Capsicum Extract8mg*
Sipernat 2255mg*
Niacin Powder4.5mg*
Piperine Extract3mg*
Chromium Picolinate80mcg*

Other Ingredients: None

We thoroughly investigated PhenQ ingredients in order to provide you with the important facts and details.

α-Lacys Reset

α-Lacys Reset is an ingredient that contains both cysteine and alpha-lipoic acid. It has been around since 2013, and was developed by Nutraceuticals International Group.

What is it Supposed to Do?

The purpose of α-Lacys Reset is to accelerate the metabolism and elevate thermogenesis. This way the body burns off more calories at a faster pace. This in turn may lead to weight-loss and fat reduction.

Clinical Research

According to some research, “The volunteers involved in one weight-loss study lost 3.44% of their bodyweight and also showed a 3.8% increase in muscle mass.” However, this study was conducted by the company behind this ingredient. Therefore more research is needed to determine just how effective α-Lacys Reset is for weight reduction.

Clinical testing is a crucial factor to consider when it comes to selecting a diet supplement or weight-loss pill. You may want to take a look at a product like Dietspotlight Burn. This formula contains ingredients that are backed by real research.

Capsimax Powder

Capsimax powder basically comes from red-hot chili peppers. It’s often referred to as capsicum extract. While this ingredient has been used in a number of traditional medicines over the years, it’s also found in various over-the-counter weight-loss supplements.

What is it Supposed to Do?

Capsimax contains a key chemical called capsaicin. This component is supposed to help break down body fat, support a healthy metabolism and allow fat cells to be utilized as energy. It may also elevate your core temperature (boost thermogenesis).

Clinical Research

“A 2013 publication of PLoS One included a study in which participants consumed 2.6 milligrams of capsaicin once every 36 hours over a period of 144 hours. Researchers found that consuming capsaicin led to higher fat oxidation after meals and counteracted the slowdown in metabolism that usually occurs on a calorie-restricted diet. The capsaicin supplement also did not have any negative effects on blood pressure, and while the study showed great promise for capsaicin as a metabolism booster and fat burner, further research is needed.” [1]

Calcium Carbonate

Calcium carbonate is essentially a chemical compound that is found in limestone, shellfish, coral and marble. It’s often used in dietary supplements to help treat or prevent calcium deficiency. This is an important mineral for bone density and strength, as well as healthy muscle and heart function.

What is it Supposed to Do?

Often calcium carbonate is used in diet supplements and weight-loss products to help reduce fat storage. It’s often combined with other key ingredients to aid with weight reduction. [2]

Clinical Research

“A study in 2000 at the Osteoporosis Research Center of Creighton University looked at 780 women who participated in double-blind, placebo-controlled studies of calcium supplements. In four years, the women who took 1,000 mg of calcium a day weighed, on average, 3.5 lbs. less than women who did not take the calcium. Researchers concluded that the calcium was responsible for 3 percent of the body weight variance, or about 0.1 pounds.”

We are all about limiting the risk of side effects when it comes to trying new weight loss products. One supplement we’ve been noticing in particular, Dietspotlight Burn, has four-salient ingredients proven in studies to burn fat, boost energy levels and ignite the metabolism.

PhenQ Scientific Abstracts


At the 12th week and at the 14th week there had been no significant changes in variables between the groups. There had been no raise in lean mass in the calcium group by the 12th week in comparison to baseline and placebo group at the 24th week in comparison to the 12th week. There had been a noticeable reduction of insulin concentration in the calcium group at the 12th week when compared to baseline (p < 0.05). The diastolic blood pressure had a substantial reduction at the 24th week in comparison to the 12th in either groups (p = 0.013-0.009). In conclusion, the results had indicated that 24 weeks of treatments with 1000 mg ca/d didn’t display any effects on weight, insulin resistance, blood pressure, and body composition. [1]


Measurements of strength had been improved for all groups (p<0.05), with no notable time x treatment interactions. No substantial main effects were observed for peak power. As for total power, a time x sprint interaction had been noticed (p<0.05), with no substantial interactions between the groups. A time x treatment interaction had been noticed for serum CRN values (p<0.05) which pointed out a raise in all groups with the exception of PLA. Participants had noted mild gastrointestinal discomfort with caffeine anhydrous/creatine mixture with no side effects in the other groups. It had thus been suggested that neither creatine by itself or in combination with caffeine anhydrous or coffee had a noticeable effect on performance when compared to placebo. [2]

L-Carnitine Fumurate

Bone volume and total volume ratio, osteoblast surface/bone surface, bone perimeter, and osteoblast number/bone surface had all been measured. Bone volume and total volume ratio as well as all osteoblast-based indexes had been a lot higher in LC and Iso-V LC than in Hypo mice at the given time points, and Iso-V-LC at the completion of treatment reached levels studied in controls. In conclusion, Iso-V-LC and LC accelerated the recovery of normal bone volume/total volume levels following a hypocalcemic diet. [3]

Capsicum Extract

Within an effective 20.5% negative energy balance, ingestion of 2.56 mg capsaicin per meal promotes negative energy balance by successfully counteracting any negative effect of reduction in elements of energy use. In addition, the ingestion of 2.56 mg capsaicin per meal had aided fat oxidation in negative energy balance and doesn’t raise blood pressure by any substantial amount.


Niacin, being available in the form of 3 options (immediate release, extended release, and long acting) is significantly different with respect for their efficacy and safety profiles. Immediate release is known to have adverse flushing, elevated blood glucose and gastrointestinal symptoms. The long acting variety can be taken once per day and is associated with substantially decreased flushing; however its metabolism does raise the risks of hepatotoxic effects. Extended release niacin, which is also suggested to be taken daily, has an absorption rate somewhere between the other formulas. It is associated with fewer flushings and gastrointestinal symptoms and doesn’t raise the hepatotoxic risk. [4]

Summer Banks Dietspotlight Author
About the Author:

Summer Banks, Director of Content at Dietspotlight, has researched over 5000 weight-loss programs, pills, shakes and diet plans. Previously, she managed 15 supplement brands, worked with doctors specializing in weight loss and completed coursework in nutrition at Stanford University. full bio.

20 PhenQ Reviews

  • Christina Murphy

    I took it the last two days (as directed) and I’ve never felt more horrible: Nausea, EXCRUCIATING HEADACHE, and I couldn’t sleep. Sure, I had a loss of appetite…..because I felt like I was literally DYING. Never taking this again

    • Leana

      Your so right headaches, nausea, anxiety I felt like I was also dying and it lasts till the next day. I’ll try one a day but if I feel like that again I’m done.

    • Jenn

      Are you used to drinking coffee?? Maybe that’s why you have the headaches..

  • Jeannine

    I am now on the second bottle and I dont see any difference.

    • Victoria (Editor)

      Hi Jeannie. We’re sorry you didn’t achieve any results with this product; you might have reached a plateau. If that’s the case, you might want to look into products that help with speeding up your metabolism and suppressing appetite. Have you checked out Dietspotlight Burn?

  • Stomach has been hurting
    Charlotte Butler (Verified User)

    started taking it yesterday 11/10-16 my stomach has been hurting, since then, will not take anymore, just not for me

  • So far so good!
    Lena (Verified User)

    I’ve been using PhenQ for 2 days now and so far I’ve completely lost my appetite which is good because before I could eat the house down, and it’s helped me get rid of whatever I eat.. If you catch my drift. So far so good!

  • I wonder if it's effective

    I wonder whether it’s effective because we are encouraged by Phenq to go on a 5:2 diet anyway and take it at the same time so how is the pill making me lose weight when the 5:2 diet is being done at the same time. I can lose weight with 5:2 easily if it stick to it. I expected Phenq to increase the weight loss with the diet. I lost 1.5kg last week & started taking the tablet from Tuesday. on the wkend I had a dinner on and lunch, I put 0.8 kgs while still taking the pill. means that the diet works but the pill is not doing much

  • Horrible side effects
    Denise (Verified User)

    I’ve been using Phenq for two days now. It’s horrible, I sweat all the time. My heart rate is up, I feel dizzy, I don’t sleep. This is not a good product!

    • Your Name

      You should start by just using one it’s takes a while for some people to get use to it .

      • Natasha

        ive ordered my first bottle last Thursday but your dizziness is probably cos you need to exercise it out your body needs it and your heart rate is up cos your burning fat

  • No change in energy or mood.
    Becca (Verified User)

    I’ve been taking PhenQ for a few days and I don’t feel any sort of energy or mood boost. Actually the opposite. I have this dull headache behind my eyes and I’m grumpy. This could also be because I’m trying to cut out the sugar in my diet too. Going to keep taking it until I have used the whole bottle. Not going to bother with returning it. Will follow up if I notice any difference or see results.

    • Victoria (Editor)

      Hi Becca! If you’re looking for products that can assist you with more energy throughout the day, you might want to consider products with caffeine and energy-boosting ingredients. Have you checked out Dietspotlight Burn?

  • 2nd day,so far it's good.
    Jenn (Verified User)

    This is my second day using it. Been using the restroom alot. But it might be because im drinking lots of green tea as well. I do sweat alot. But the appetite is gone. Been drinking lots of water. No headaches. No stomache pains.

  • No results after three weeks
    Vicente Sánchez (Verified User)

    I have been taking two pills a day for three weeks and nothing.

  • 2 months and no difference
    Beverley (Verified User)

    Been taking PhenQ for nearly 2 months and hasn’t made a bit of difference. Waste of money in my opinion

  • madeeha

    doesnt work at all

    • Dorothy Johnson

      I need to lose weight but I don’t want to waste my money

    • Colleen

      Are you dieting and exercising?

  • Jude

    Took half a tablet yesterday and tonight I’ve been violently throwing up, after I’ve thrown up the water I’ve drank I then proceed to throw up what seems like a whole stomach full of dark green bile. Never have I felt so sick. Going to the doctor tomorrow