Phentaslim Review – Get Rid of Body Fat and Reduce Hunger





Formula / Ingredients


Safety Rating


Customer Feedback


Value For Money



  • Excellent ingredient profile
  • Strong fat burner
  • Can reduce hunger
  • very good customer reputation
  • Solid money back guarantee


  • Available exclusively from manufacturer
  • Contains caffeine (not a negative as such depending on tolerance)

Phentaslim Review

Phentaslim is an extremely popular diet pill – especially in the UK and United States . It’s main aims are to get rid of your body fat and reduce your hunger.

It is classed as a multi benefit (or multi function) diet product – which to some extent it is. But it is it’s fat burning and hunger reducing capabilities that really has been the reason for it’s success over the last years.

Phentaslim has been a around since 2014 – bad products simply don’t last this long on the market. Phentaslim is an effective and legitimate product and will be around for quite some time yet.

As I have touched upon – Phentaslim is a multi benefit diet pill. This type of pill covers all the bases and offers the greatest level of support.

Experts say it’s the type of diet pill that generally works best. That may explain why so many customers are saying Phentaslim works so well.

It’s rare to find a diet pill that has such a good reputation for delivering results.

Phentaslim fat burner reviews

This Phentaslim review – What Is Covered

This Phentaslim review provides an in-depth look at the product and its capabilities.

The review is written with the average dieter in mind, so there is no complicated terminology or tech talk.

Diet pill reviews are meant to make it easy for dieters to make an informed decision about a product.

Blinding people with science does not further this aim.

The review also contains plenty of links to supportive information about the ingredients used in Phentaslim.

This makes it easier for people to conduct further study into the ingredients capabilities should they wish to do so.

Phentaslim is an excellent product and available to buy in most countries including UK. Unites States, Canada, Australia

You can purchase is local currency such as  US$, €, £, CAD$ and AUD$ – Shipping is mostly free and there are special offers running from time to time

Visit official Phentaslim website for current special offers

What are the Advertised Phentaslim Benefits

Phentaslim supports weight loss in several ways:

  • Boosts energy
  • Destroys hunger
  • Burns calories
  • Annihilates body fat
  • Improves the health
  • Boosts mental clarity

A Closer Look at Benefits Customers Are Told to Expect

Phentaslim is a diet pill that offers multiple benefits. The name makes it sound like a Phentermine substitute, but it’s not.

The prescription weight loss drug is an appetite suppressant.

Phentaslim is an appetite suppressant as well, but it also offers a range of additional benefits Phentermine does not.

The fact that Phentaslim is a multi-functional diet pill is a point in its favour.

Optimum Nutra says Phentaslim boosts energy.

This may not appear to be an important feature, but it is. Weight loss success requires calorie control.

That means cutting back on food.

The problem is, following a calorie controlled diet can cause diet-related fatigue.

Nobody wants this. It’s not nice to feel tired all the time. That’s why Phentaslim functions as an energy boosting diet pill.

Woman on exercise bike

Optimum Nutra also state Phentaslim destroys hunger.

That’s just a dramatic way of saying it’s an appetite suppressant.

Appetite suppressants have an important role to play in weight loss game.

When hunger strikes it can be very unpleasant and distracting. It’s hard to think straight with a grumbling stomach.

A good appetite suppressant can control your hunger so it doesn’t control you.

When Optimum Nutra claim Phentaslim burns calories, what they are really saying is it’s a fat burner.

Fat burning diet pills speed up the metabolism. This makes the body burn calories faster.

This can only be seen as a good thing because it helps create the calorie shortage that’s necessary to shift the body into fat burning mode.

When the body is in fat burning mode it gets busy breaking down its stores of fat to use for energy.

If you want to “annihilate your fat” and lose weight, you need to be in this state most of the time.

Any diet pill that works is capable of improving the health because being overweight is unhealthy.

However, Phentaslim offers additional benefits in this regard because it contains ginseng. This herb is renowned for its ability to support good health and the Chinese have been using it for hundreds of years.

Caffeine is good for boosting mental clarity, so the claims Optimum Nutra are making certainly appear to hold good.

Manufacturer Credibility

Phentaslim is made by Optimum Nutra. The company has offices in Panama and Cyprus and is generally considered a world-class supplement supplier.

Phentaslim is not an only child, Optimum Nutra also produces two other products (Superfruit Slim + Phentatrim), both of which are very successful in their own right. However, it is true to say it’s the company’s most successful product to date.

A Quick Look at the Pros and Cons

Nothing is perfect. Everything has its pros and cons. Fortunately, in this case, the pros far outweigh the cons.

Phentaslim Pros


  • Contains clinically proven ingredients
  • Made by a respected company
  • Manufactured in a GMP certified facility
  • Offers multiple weight loss benefits
  • Does not need to be used in cycles
  • Over 101,000 satisfied customers
  • Free worldwide shipping
  • 60-day money-back guarantee
Phentaslim Cons


  • Can only buy it directly from the manufacturer
  • Not Suitable for Vegans/Vegetarians
  • Contains caffeine (although this isn’t really a con, it depends on your tolerance level)

Key Ingredients at a Glance

Two Capsules provide:

  • Green Tea (375mg)
  • Caffeine (270mg)
  • L-Theanine (225mg)
  • L-Carnitine (200 mg)
  • L-Tyrosine (200mg)
  • Panax Ginseng Root (1200mg)
  • Guarana Seed (100mg)
  • Magnesium (80mg)
  • Cayenne Pepper (50mg)
  • Zinc (15mg)
  • Black Pepper Extract (6mg)
  • Vitamin B1 (1.3mg)
  • Vitamin B2 (1.3mg)
  • Vitamin B6 (1.8mg)
  • Vitamin B12 (10mcg)
  • Niacin (20mg)

A Closer Look at the Phentaslim Formula

Green Tea

Green tea is such a popular diet pill ingredient it would be a surprise not to see it included here.

Diet pill manufacturers love this ingredient and there’s a wealth of evidence to show it works.

The results of one study are particularly noteworthy. They show green tea can boost calorie burning and fat oxidation for up to 24 hours.

It’s no flash in the pan fat burner and that’s for sure.

Green tea is also rich in antioxidants that help purge the body of toxins and improve the overall health. 



Coffee continues to be the favoured fatigue remedy of sleepy heads all over the world. It also boosts mental alertness and both these abilities are due to its caffeine content.

The energy providing ability of caffeine has also allowed it to become an important energy drink ingredient.

All the aforementioned virtues of caffeine give it value as a diet pill ingredient.

However, it offers additional benefit in another area because research shows it’s a fat burner.

For the most part, caffeine is good. Unfortunately, there’s a downside.

A minority of people do not handle caffeine well and may experience jitters and other side effects.

The 270mg dose provided by Phentaslim is similar to the amount of caffeine in two-and-a-half cups of coffee. Most people should be okay with that but, if your not, Phentaslim won’t be the best fat burner for you.

L-Theanine for weight loss and relaxation


An amino acid. You can get it from green tea, but you’d have to consume quite a lot to get this dose.

L-Theanine stimulates the neurotransmitters that control the mood.

It also has the ability to relax the mind without causing sedation. This condition is sometimes referred to as a state of alert calm.

One of the interesting things about L-Theanine is it has a synergistic effect with caffeine. That’s a fancy way of saying the one enhances the abilities of the other.

L-Theanine is often combined with caffeine in diet pills because it helps reduce the negative effects of caffeine.

L-Carnitine + L-Tyrosine

Two more amino acids. Both of them are added to bodybuilding formulation because they aid muscle growth and repair. That’s not why they’ve been included here.

L-Carnitine and L-Tyrosine also boost stamina. That’s not the reason for their inclusion either. They’ve been included because they increase resting energy expenditure.

That means they help you to burn extra calories when you are resting and are more likely to need to get them from fat.

Panax Ginseng benefits

Panax Ginseng Root

Many herbs are famous, but ginseng could be considered a superstar.

It’s known all over the world for its ability to enhance the health. Ginseng also considered an aphrodisiac.

An expert evaluation of some of the research data about ginseng suggests it’s also a weight loss aid.

Guarana Seed

A tropical berry extract that’s used in certain brands of energy drink because it’s high in caffeine.

Guarana differs from other caffeine providers because it releases its caffeine slowly. This makes it good for providing a lasting supply of energy.


The results of a study published in the Journal of Nutrition (2013), suggest increasing magnesium intake might lower fasting glucose and insulin levels.

This makes magnesium useful for preventing the battle between blood glucose and insulin that can sometimes result in desires for sweet food.

cayenne pepper weight loss

Cayenne Pepper

Like red chili peppers, cayenne peppers are a source of capsaicin.

This compound is known to be a good appetite suppressant. However, cayenne is generally more highly thought of as a fat burner.

Research shows even eating a few grams of raw pepper each day increases diet-induced thermogenesis and lipid oxidation.


Zinc is a mineral that serves many roles in the body.

It’s often favoured by bodybuilders because it boosts testosterone.

Testosterone is an important anabolic hormone and steroid.

It supports muscle growth and encourages human growth hormone secretion.

Testosterone also assists the fat burning process.

On top of these abilities, zinc regulates immune function and aids wound healing.

Black Pepper Extract

Black pepper contains piperine. This is the alkaloid responsible for peppers distinctive taste and smell.

Piperine helps other ingredients to be absorbed. For this reason, black pepper extracts are often added to dietary supplements of all kinds.

Vitamin B1 + Vitamin B2 + Vitamin B6 + Vitamin B12

B vitamins help the body extract energy from food. They serve other roles in the body as well, but that’s the main reason they are added to diet pills.

Vitamin B6 and Vitamin B12 are added to energy drinks.

Most popular brands, including Red Bull, contain both. That’s a pretty strong endorsement for their ability to boost energy levels.


Niacin is also a B vitamin (B3). Like the other members of its family, it boosts energy.

It’s also a natural vasodilator that dilates the blood vessels and improves the circulation.

Niacin’s ability to improve the circulation allows it to benefit all the major organs of the body including the brain.

Niacin also lowers cholesterol so its, a heart-friendly vitamin.

How to Use Phentaslim

Optimum Nutra are not trying to sell this as a magic pill.

Customers who want to get the best results from the product will need to use it alongside a calorie-controlled diet.

Keeping active and getting plenty of exercise will further improve the results.

The dose is two pills per day. That’s one capsule 20 minutes before breakfast and a second one 20 minutes before lunch.

It’s important to take the capsules with water as this will prevent the risk of choking.

It will also help destruct the capsules so they can get to work faster. The capsules should be swallowed whole and not chewed.

Phentaslim customer feedback

Phentaslim Customer Feedback

Some weight loss supplements have little or no customer feedback.

Others have a lot. A select few have a huge amount of feedback. Phentaslim belongs to the latter category. Customer testimonials show it’s already helped more than 101,000 people to lose weight.

A few typical customer reviews read:

“Forget the rest, buy the best. Phentaslim is the only diet pill I’ve tried that does what it says on the tin. If it can do it for me it can do it for you too. We’re all only human after all and we all work in the same way.”

“My order arrived the next day and I began using the pills at once. This was on the Wednesday morning. It’s Sunday evening now and I’ve already lost 2lbs and my hunger is under control. I’m also feeling a lot more energetic and alive. This has given me the motivation to take out a membership at the gym. This product is a real game changer.”

“Fast delivery, even faster results. I simply cannot recommend this product enough.”

“I had a lot of weight to lose, so I ordered three bottles and got one more free. That gave me enough pills to last for 120 days. My 120 days are up. I’ve lost 31 pounds. I’m totally blown away at how well everything has gone. I wasn’t hungry any more so my portions were easy to control. Phentaslim gave me more energy too. I still have more weight to lose, so I’ve already ordered some more. If something works for me I stick with it.”

“I’m greedy. I admit it. That’s what made me fat. Phentaslim made me thin. It did it by helping me to help myself by keeping my mouth shut most of the time. I have smaller portions now. I never eat snacks. I never miss them either. There must be some bloody good stuff in these pills.”

“Other diet pills never worked for me. All they did was give me the jitters. This product gives me jitter free weight loss. It really does work. Try you’ll see.”

“BEST DIET PILL EVER!!! IT’S MADE IT EASY FOR ME TO LOSE WEIGHT. For a product this good, I’d have happily paid more. It’s really good value for money.”

Phentaslim customer comments

Does Phentaslim Cause Side Effects

Phentaslim does not have a reputation for causing side effects, but it contains caffeine.

Unfortunately, this means you won’t be able to take advantage of its abilities if your caffeine tolerance is unusually low.

Potential customers need to be aware Phentaslim is not intended for anyone with a BMI of 18 or less. Nor is it a suitable option for women who are pregnant or nursing a child.

If you have existing health problems you will need to check with your doctor before using this product.

If you are planning on using Phentaslim alongside medication, you will need to speak with your doctor as well.


Phentaslim has a 60-day money back guarantee.

That gives customers plenty of time to evaluate the product and see if they are happy with the results.

Apart from providing customers with extra peace of mind, the Phentaslim money back guarantee also shows Optimum Nutra has enough faith in the product’s abilities to provide customers with the chance to try the product without the risk of losing their money.

All of the top diet pills have a money back guarantee. However, the market is flooded with diet pills that are marketed with big claims and no money back guarantee at all. Such options are always best avoided.


Unless you have a problem with caffeine or happen to be vegetarian, Phentaslim is likely to be a good option.

It’s a quality product, produced by a reputable manufacturer and its backed by a money back guarantee. These are important points to remember.

The product is also reasonably priced and there’s an abundance of customer reviews that show that it works. That makes the product good value for money.

It’s not surprising that Phentaslim has proved to be such a big hit with dieters. The formulation of ingredients it contains is first-rate.

You don’t get a first rate product by using second-rate ingredients though. This is a lesson other manufacturers would do well to learn.

If you want a diet pill that offers results in place of hype, Phentaslim your ticket and it’s a good ticket to have because it can get you where you want to go.

Phentaslim UK

Product Pricing and Special Deals

At the time of writing this Phentaslim review, it was possible to buy a buy a 30-day supply of pills (90 capsules) for $69.

That’s very fair for a product of this quality.

What’s more, a 30-day bottle should deliver a weight loss of three to ten pounds. So if you don’t have a lot of weight to lose a single bottle should do the trick.

Customers who have a lot of weight to lose should consider taking advantage of bulk buy discounts. Ordering two bottles will bag a significant discount.

A three-bottle order will bring the price per bottle down further still. On top of this, Optimum Nutra will throw in a fourth bottle of Phentaslim free of charge.

Depending on when you are reading this review, the price may have changed.

The cost per bottle might be a little more due to inflation. It may even be a lot less due to improved or additional promotions.

If you are thinking about buying Phentaslim, the best thing to do is visit the official site.

It will give you the opportunity to get the most up-to-date information about pricing and special deals.

Where to Buy Phentaslim


You can only buy Phentaslim from the official site.

The only real drawback to this is it makes it impossible to shop-around in the hope of getting a better deal.

However, the fact that Optimum Nutra has restricted the distribution options in this way also means customers can be sure they are buying the genuine product.

As is often the case with successful products, the bottom feeders in the diet pill industry sometimes try to cash-in on the good vibe.

They do this by producing fake versions of Phentaslim. The bottles look the same, but the ingredients are not. Neither are the results.

Fortunately, Optimum Nutra is very quick off the mark when it comes to finding these products.

The company’s legal department always gets to work fast and insists the fakes are removed from the market.

Phentaslim is an excellent product and available to buy in most countries including UK. Unites States, Canada, Australia

You can purchase is local currency such as  US$, €, £, CAD$ and AUD$ – Shipping is mostly free and there are special offers running from time to time

Visit official Phentaslim website for current special offers

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