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Phentaslim Review: Does this fat burner really supercharge your life?



Phentaslim is an “all in one” fat burning and weight loss supplement.

It claims to push your energy to new highs, whilst burning fat, suppressing appetite and supporting mood and focus.  

Their powerful formula is filled with effective natural ingredients clinically proven to provide results.

This review takes a closer look at Phentaslim to see what it can do for you.


What is Phentaslim?

Phentaslim is an intense fat burning supplement that can help increase energy, improve mood and reduce the appetite.

How to take Phentaslim?

Phentaslim should be taken 20 minutes before meals, three times a day with a glass of water. It is best not to take close to bedtime.

Who should use Phentaslim?

Phentaslim should be used by people who want to increase their metabolism and fat burning rate whilst maintaining mood and energy.

How much does Phentaslim cost?

A 30 day supply of Phentaslim (90 capsules) costs $69. A 60 day supply costs $109, and a 120 day supply costs $159.

Is Phentaslim safe?

Yes, Phentaslim is approved by the FDA and is safe for use if used according to directions. Do not exceed the stated dose.

Is Phentaslim legal?

Yes, Phentaslim is legal.

Where to buy Phentaslim?

Phentaslim can be purchased via their official website.

Do they ship Phentaslim worldwide?

Yes, Phentaslim is shipped worldwide for free.

Does Phentaslim really work?

The ingredients in Phentaslim are proven to help with weight loss. They have a 60 day money back guarantee and allegedly have a very low rate of returns.

How long do you have to take Phentaslim before seeing results?

Of course results will vary according to individuals, however, Phentaslim claims 3 to 10 pounds of weight loss is possible within 30 days.

Are there any Phentaslim alternatives?

Phen375 is similar, but after testing over 20 weight loss supplements you can see our #1 recommendation here.


Phentaslim is an intense fat burner that aims to effectively increase metabolism while helping you feel more positive and energised throughout the day.

Loaded with natural ingredients like green tea, l-carnitine, guarana, caffeine, ginseng and magnesium to name but a few; Phentaslim is a power packed pill designed to propel you towards your goals.

Phentaslim takes in hand many different challenges we face when trying to shed excess fat. Here are the main benefits:

Raises Calorie Efficiency

Calories are a unit of body energy.

The initial source of these “units” comes from the everyday foods which you include in your regular diet. Think of it like depositing money in your bank account.

However, you can also deplete your calorie intake. This doesn’t solely apply to exercise, breathing, sleeping and anything revolving around staying alive uses energy.

In terms of weight loss, you need to spend more calories than you save – pushing your “account” into a negative.

Being more active and eating less is the perfect combination to create this scenario. Yet supplements like phentaslim can make this happen faster.

It uses ingredients to increase your metabolism, which speeds up your “spending”. This means your body is using calories at a more efficient or faster rate.

Eliminates Hunger and Cravings

The definition of food cravings can be described by the following: “an intense desire to consume a particular food that is difficult to resist” (1)

When you diet, cravings occur for a number of reasons: lack of nutrients, cutting back on sugar, drop in energy levels and obviously hunger.

All of these situations impact on the body and the brain which in-turn sends messages to your stomach and vice versa.

The special formula uses ingredients designed to curb appetite and reign in on cravings, keeping you away from “forbidden” foods.

Mental Focus

Sometimes it is a case of mind over matter. How you feel can play a major role when it comes down to weight loss.

Once slimming targets are achieved mood improves because of the confidence factor.they feel more confident in themselves. However, the path to get there can have the opposite effect.

Dieting can have an impact on blood sugar levels. If they drop too low it can leave you feeling tired and irritable. This also has a knock on effect with motivation.

Phentaslim uses ingredients to lift your mood and combat negativity so that you can  focus on your target of weight loss.

Boosts Health

Your immune system is what stops you from getting sick.

It’s well known exercise is beneficial for your health as well as weight loss. It can help you fight all kinds of diseases.

However, in some circumstances exercise can have a negative impact and weaken your immunity. Overtraining is often the cause of frequent illness and feeling rundown.

If you are restricting calorie intake and working hard, sometimes the immune system can become weakened, increasing your risk of illness.

When you combine both scenarios together it could double your chances of becoming unwell. (2)

Phentaslim has its fair share of vitamins, minerals and powerful antioxidants to ensure your immune system is fighting fit, while you are trying to slim down.


Phentaslim formula includes a large number of ingredients and vitamins to support your weight loss goals.

It’s also open and transparent regarding the quantities of ingredients included in their formula. The concentrations are clear for all to see and not hidden behind the words ‘proprietary blend’ which leave us none the wiser.

Here we examine those that are used in the strongest concentrations.

Guarana Seed

Guarana contains one of the highest concentrations of caffeine known to be present in any plant.

The fruit of this south american tree bears seeds that are higher in caffeine than our well loved coffee. (3)

Caffeine stimulates the body and has been shown to have a suppressing effect upon hunger. (4,5)

Green Tea

With over a thousand different types, the production of green tea has become a fine art in itself.

The benefits of this asian beverage have become so well known that it is now used in almost everything health and fitness, even included in skin creams and face masks.

Phentaslim takes advantage of the fat burning properties of this unique plant for use in their weight loss formula.

Green tea has proven its ability to zero in on fat deposits and break them down to be used by the body.

It has this effect due to the action of powerful compounds called catechins contained within its leaves. (6)


Magnesium is a mineral that plays an important role in more than 300 of our bodily functions, including protein synthesis, muscle and nerve function, blood glucose control, and blood pressure regulation. (7)

It can help improve mood, anxiety and reduce stress by assisting in the regulation of neurotransmitter serotonin, also known as the ‘happy hormone’. (8)

Not only does stress make you feel terrible, there is some evidence that stress can lead to increased deposits of fat around the belly, which is also unlikely to improve your mood. (9)

Magnesium can counteract this risk by keeping your hormones in balance and ensuring you keep a positive mental outlook. (10)

Panax Ginseng

Ginseng is one of the most popular herbal supplements in the world, having been used in traditional medicine for centuries.

Native americans used ginseng to treat headaches and indigestion, among other symptoms.

Ginseng is beneficial for reinforcing the immune system, the body’s natural defences against infection. (11)


L-tyrosine is a powerful amino acid that is used in the synthesis of many hormones such as dopamine, adrenaline and thyroid hormones.

Amino acids are the building blocks of proteins and therefore are essential to life and building lean muscle.  

Both adrenaline and thyroid hormones can affect our metabolic rate and the amount of calories we burn at rest. (12, 13)

Supplementation with l-tyrosine can make weight loss easier by supporting hormonal balance and preventing a slowing of the metabolism.  

Acetyl L-Carnitine

L- carnitine is another amino acid found within the body, but  also present in foods such as meat and fish.

It is important for helping the body produce energy, transporting fatty acids to be metabolised for fuel.

Phentaslim includes l-carnitine in the formula to boost energy levels and performance.

Studies have revealed that l-carnitine can increase endurance and reduce fatigue when the body is under exercise stress. (14)

L-carnitine can also contribute to weight loss. (15)


The third and final amino acid included in Phentaslim is l-theanine.

L-theanine is used to increase focus and improve the mood, helping you to avoid distraction and negativity so you can make the most out of your gym time.

It is especially effective when used in combination with caffeine, which is also included in the Phentaslim formula. (16)

Caffeine Anhydrous

After a long day in the office and watching what you eat, it can feel as if you have nothing left to give when it comes to exercise.

Phentaslim will give you the extra kick you need to get you through those doors and onto the weight rack.

Caffeine anhydrous will lift your energy levels out of the gutter.

Caffeine has stimulating effects upon the nervous system, waking up your senses and helping you to overcome fatigue. (17)

Furthermore, caffeine supplementation can contribute to increases in fat oxidation, meaning you will see a reduction in body fat faster. (18)

Cayenne Pepper

Cayenne is a pepper which is dried and ground into a powder so that it can be added to foods for that spicy aroma.

The spiciness that makes you sweat while eating that hot curry is caused by the compound capsaicin. It’s found in most members of the chilli family.

Capsaicin is heralded for its thermogenic properties.

It has been repeatedly shown to raise  body temperature, resulting in a boost in metabolism and consequent calorie burn.(19)

Furthermore, capsaicin is an effective appetite suppressant.(20)

Side Effects

Side effects are a possibility when using Phentaslim.

Caffeine can cause insomnia, rapid heart rate, nausea, anxiety, headaches and a feeling of jitteriness.

Ginseng has the potential to cause insomnia, changes in blood pressure, menstrual problems, diarrhea and itching.

Magnesium may cause stomach upsets.

Recommended Dosage

One capsule is to be taken with water 20 minutes before your meals, three times a day. Due to the caffeine content, it is advised to not take Phentaslim after 5pm to avoid sleep disturbances.


Phentaslim has an impressive formula which has shown scientific promise in supporting multiple weight loss issues.

The ingredients are used in effective dosages which are clear for the consumer to see, without being disguised behind a proprietary blend. We have located evidence that these ingredients can indeed provide results to match Phentaslim claims.

Phentaslim uses intense stimulants and high levels of caffeine which can accelerate metabolism, but also cause issues for individuals who are sensitive to it.

We think that Phentaslim is a promising supplement that can be of benefit to those who need help sticking to their weight loss goals.

Attention Phentaslim readers: Click here for our #1 rated weight loss supplement

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