Phentaslim (By Optimum Nutra) 6 Ingredients 6.5 Servings 5.5 Safe to Use 6.0 Pros Contains Green Tea, Cayenne and Caffeine

Free Shipping Cons Caffeine May Be Too High

Missing Core Nutrients

Missing Appetite Suppressants

This is our review of Phentaslim, a weight loss aid that is getting a lot of attention online.

It has claims to help:

Fat Loss Energy Levels Appetite Suppression

In this review, we look closer at the Phentaslim brand to see how this product may help you.

Here’s what we cover in our Phentaslim review:

Phentaslim UK

Phentaslim is available for sale in the UK. The company behind them, Optimum Nutra ship worldwide for free.

It’s also has a 60 day money back guarantee.

You can get Phentaslim in the UK.

Review Phentaslim: How much does it cost?

Phentaslim comes in at the following prices:

1 Bottle: £39 (1 month supply)

3 Bottles: £77 (3 month supply)

5 Bottles: £117 (5 month supply)

All shipping is free worldwide. This seems like good value – but that doesn’t mean Phentaslim itself is good.

You need to look closer at this supplement to get the full picture.

How to Use Phentaslim

Phentaslim recommends that you use this supplement by taking 2 – 3 capsules a day.

The timing of taking these is unclear, but given the high caffeine dosage we expect this should be spread out throughout the day.

We think this is the best idea because it gives your body a constant supply of nutrients to keep you in that fat burning mode.

Ingredients in Phentaslim

There are some good options in here to promote weight loss, but we can’t help but feel that some areas in this diet product have been neglected.

It is not a medical supplement. It is a natural supplement which can help promote fat loss internally within your body.

Below, we look at the ingredients in Phentaslim to see how effective it really is.

This is what we’ve found:

Green Tea – Best Option in Phentaslim!

Gree Tea is the best option in Phentaslim in our opinion. It’s a herb which has big links to fat and weight loss.

Not only that, a lot of people use Green Tea with total safety.

So, how does it work?

Green Tea contains a specific form of antioxidant known as catechins. These catechins promote your body’s levels of the fat burning hormone norepinephrine. The more norepinephrine you have in your system, the better fat loss you’ll experience.

Caffeine

This is another good option that we’ve seen in Phentaslim. Caffeine is arguably the best natural stimulant out there.

Caffeine has been seen in numerous studies to help promote your overall levels of energy, but it can also help your metabolism, focus and power output in the gym.

This means it will be good for helping both while working out and while trying to lose weight.

L-Theanine – Our Reviewer Loves This!

Although it isn’t a fat burner, this reviewer is a huge fan of L-Theanine in Phentaslim.

Why? Because it help to manage stimulants.

L-Theanine is an amino acid which helps promote overall relaxation. When combined with the caffeine, L-Theanine can help reduce the jitters and shaky energy that you get with this stimulant and allows you to focus it.

This can help a lot with your concentration and motivation in the gym.

Acetyl L-Carnitine

This is a nice touch in Phentaslim, but it may not be as effective as some of the other ingredients in this weight loss aid.

L-Carnitine is a natural amino acid which has been seen in studies to help promote:

1. Energy

2. Focus

3. Metabolism

However, you need a lot of it to work. Best results come from 500 – 2500mg per serving.

With only 200mg in Phentaslim you may not get enough to see the results that you’re looking for.

L-Tyrosine

Another good ingredient in this review – but it does not help weight loss.

L-Tyrosine is more of an anti-stress aid. This can help clear your mind and make it easier for you to focus.

Some research has shown that taking L-Tyrosine could help promote alertness. Again, it’s just a good nutrient for keeping you sharp for the day and for exercise.

Panax Ginseng

This isn’t a weight loss aid in Phentaslim, but it may be able to help you in other ways.

Ginseng is a traditional herb which has been seen in some studies to help promote blood and nutrient flow.

The advantage of this is that it makes it easier for the nutrient in Phentaslim to get into your system.

The ingredients will flow through easier which will help you get the benefits faster.

Guarana Seed – Interesting to see in our Review!

This is more of a supporting ingredient in Phentaslim. Guarana seed is an ingredient that contains a lot of caffeine.

It can help promote the caffeine that’s already in this supplement. This can promote energy levels as well as focus, power output and metabolism.

It seems to be more a support in here than a direct nutrient for weight loss.

Magnesium

This is a general mineral in Phentaslim which can help you in several ways.

The main way is by how it can help to some degree regulate your blood sugar and insulin levels.

When your blood sugar is higher, so are your insulin levels. In addition, higher insulin levels increase your overall fat storage from the food you eat.

By using something like Magnesium to keep your insulin levels under tighter regulation it can help reduce the overall fat you store from the food you eat.

Cayenne Pepper – We like this in our reviews Phentaslim!

Another one of the good choices in our review Phentaslim. Cayenne Pepper is a hot chili which can help increase your body’s temperature. The advantage of this is that it forces your body to start a cooling process.

This cooling uses up more calories than your body would normally, and by extension, you burn more fat.

An extra bonus is that Cayenne Pepper has also been seen in some cases to help improve appetite suppression which would also help with fat loss.

It’s good to see in this supplement.

Black Pepper

The final ingredient we’ll be talking about in Phentaslim.

We like Black Pepper. It doesn’t support weight loss, but it supports this product.

By this we mean it can help with overall absorption. Supplementing it can help promote the amount of nutrients you absorb form the ingredients in Phentaslim.

It can help you to get more out of this supplement overall.

Phentaslim Reviews: Ingredient Overview

As you can see, there are some good ingredients in Phentaslim, however we think there are some areas which could be improved.

The L-Carnitine could definitely work better if it was at a higher dosage.

We also think this supplement would have better safety if the caffeine dosage was lowered to around 300mg a day.

Phentaslim could also benefit from having a few more ingredients added to it. Some appetite suppressants and a few additional fat burners would really help it out.

What could improve Phentaslim?

There are several ingredients we think could help Phentaslim, mainly:

Green Coffee Bean Glucomannan HMB

Lets look at them in more detail:

Green Coffee Bean

This would be a strong addition to Phentaslim. Green Coffee Bean can help by reducing your overall levels of the glucose in your liver.

Your body uses this glucose for energy, without it, it has to burn other resources to keep you going – namely your stored fat.

It’s a good option for burning additional fat with no extra effort.

Glucomannan

A good appetite suppressant which would be perfect in Phentaslim. Glucomannan is a fibrous complex from the Konjac fruit.

After you consume it, it swells in your stomach to make you feel fuller for longer.

It’s typically used in Japanese cuisine and is great for your cholesterol too.

HMB

Also known as ß-Hydroxy ß-Methylbutyrate, there is some research which suggests that HMB can help encourage your body to start using stored fat as a fuel when you are low on resources.

This would help to support the Green Coffee Bean that we have also suggested for Phentaslim.

Is Phentaslim safe to use?

The main side effects and safety issues that we have with Phentaslim is the high caffeine in combination with the Guarana.

We usually recommend a maximum dosage of 300mg per daily intake of caffeine. However, being as this is a diet pill and not a pre workout – we would say Phentaslim may be going a little too far.

It depends on your tolerance. You should just know that before going into this.

Quick Questions about Phentaslim in the UK

Below, we have some of the more general questions that didn’t really fit into this review.

Phentaslim Boots

At the moment, Phentaslim is not available for purchase from Boots.

This goes for both online and offline in store.

Phentaslim Holland and Barrett

Again, this is another store in the UK which does not supply Phentaslim.

You can only get it from Phentaslim’s website.

Optimum Nutra Reviews

Optimum Nutra are the makers of Phentaslim, they also have a few other products in their range including Phentatrim and Superfruit Slim.

They are currently based in Panama. Our reviewer will look into their other products in due time.

Reviews Phentaslim Results

So, what does our reviewer think of Phentaslim?

It has good ingredients – but there are areas that could use improvement.

The Green Tea is the best ingredient by far, but we also feel that the caffeine could be toned down slightly considering there is Guarana in here too.

We also think Green Coffee Bean and Glucomannan would make a lot of difference to this supplement.

Phentaslim is okay, but we could definitely see room for improvement here.