Matrix T5-XT Extreme

Updated May 8, 2019.
Published Oct 11, 2014.

Matrix T5-XT Extreme looks to be quite a potent fat burner, but it can also cause some pretty dangerous side effects. This is mainly down to two of the included ingredients, sida cordifolia and bitter orange extract. Medical advice is to not include bitter orange in supplements, and sida cordifolia contains ephedrine, a stimulant that is similar to amphetamines. We just don’t feel like this is worth the risk. Yes, you might lose weight, but you’re also likely to experience negative effects that outweigh the benefits.


  • Some positive reviews suggest it does aid in significant weight loss


  • Potentially serious side effects
  • Website does not make potential side effects or health issues clear
  • No money-back guarantee
Matrix T5-XT Extreme
Products featuring T5 in their name are increasingly common, as the two letters are increasingly being associated with strong fat burners. But with so many diet pills with almost identical names, it is difficult to sort the good from the bad.

We take a look at Matrix T5-XT Extreme, a T5 branded product manufactured by Matrix Nutrition.

Matrix T5-XT Extreme Overview

What you need to know about Matrix T5-XT Extreme

Matrix T5-XT Extreme looks like a very strong product that runs a very high risk of causing serious side effects and long lasting health problems, especially if it is used in the long term.

The inclusion of bitter orange extract is fairly standard within the diet pill industry, despite medical advice to avoid the product due to the chances of side effects. However, the diet pill also includes a source of ephedrine, making this diet pill incredibly controversial. This ingredient has been banned in several countries, including the USA, following cases of stroke, heart attacks, the development of heart defects and even death.

What are the side effects of Matrix T5-XT Extreme?

There are numerous ingredients in Matrix T5-XT Extreme that can cause a wide range of side effects. Several of the ingredients are stimulants that various medical authorities have stated are dangerous to use. For a full breakdown, please see the Side Effects section below.

How much does Matrix T5-XT Extreme cost?

One bottle of 60 tablets costs £19.95, and the larger bottle of 120 capsules costs £29.99.

WATCHDOG TIP: Consider using the consumer #1 rated weight loss product – CLICK HERE

Matrix T5-XT Extreme Key Features

Matrix T5-XT Extreme is a fat burner and appetite suppressant that is intended to provide dramatic results, including significant weight loss, as well as a boost in energy and focus. By providing both fat burning elements and appetite suppressing elements, weight loss is addressed from two angles, with the aim of increasing the speed of weight loss even further.

Matrix T5-XT Extreme Key Points

  • Manufactured by Matrix Nutrition
  • 60 capsules per bottle
  • Contains ephedrine, which is banned in some countries

Matrix Nutrition, the manufacturers of this diet pill, state that their mission,

is to provide you, the customer with the latest superb quality effective sport nutrients, supplements and accessories at value for money prices

How to Take Matrix T5-XT Extreme

Matrix Nutrition, who manufacture Matrix T5-XT Extreme in the UK, state that customers should start by using one capsule per day upon waking.

For those who want a more ‘hardcore’ experience, consumers who experience no side effects can increase their daily dose to two capsules, taking one upon waking and another before exercise, at least 4 hours later.

Consumers should not take this product within 3 hours of intended sleep, although we would recommend avoiding use of the product in the late afternoon or evening, as this is a very strong stimulant based product that can seriously interfere with sleeping patterns.

Those who wish to contact the company can find a contact form, email address and telephone number on the maxi nutrition site.

Matrix T5-XT Extreme Concerns:

  • Contains ephedrine and other stimulants
  • Serious side effects
  • Incredibly strong diet pill

What does Matrix T5-XT Extreme claim to do?

Matrix T5-XT Extreme is an extremely potent thermogenic fat burner utilising an extensive range of cutting edge ingredients. T5-XT is a weight loss supplement based on scientific research and a long time was taken harnessing the power of seven fierce weight loss ingredients which not only increase metabolism but also suppress appetite.

The diet pill supposedly also increases focus and alertness, and significantly enhances motivation to exercise. It can be used in the morning or before exercise.

Does Matrix T5-XT Extreme work?

Based upon the ingredients profile and the positive reviews, it is clear that the Matrix T5-XT Extreme can cause weight loss, and is a strong fat burner and appetite suppressant. However, the risk of extreme side effects, in our opinion, far outweighs the weight loss benefits.

phentaslim bottle
The most popular consumer choice in 2021 is Phentaslim.

With a combination of proven ingredients, superb customer service and a 60-day money-back guarantee, Phentaslim is making big waves in the diet world.

Find out why thousands of people are choosing Phentaslim to achieve their weight loss goals, and why it's also the editor's top selection.

Read the Watchdog Phentaslim review here.

Matrix T5-XT Extreme Ingredients

The ingredients used in Matrix T5-XT Extreme are listed below, along with a description of how each one works (or doesn’t), to aid weight loss. The official website does include ingredient quantities, which is information that many other companies do not reveal. Having access to the ingredient quantities makes it much easier to establish the strength of the diet pill supplement.

The quantities provided below are per serving, which is one capsule. Up to two servings can be consumed per day, but it is strongly recommended that only one serving is used per day initially, to establish tolerance to the diet pill.

  • Bitter Orange Peel (495 mg): Also known as citrus aurantium, this ingredient contains synephrine. A review of numerous studies concluded that use of synephrine resulted in an increase to the participants resting metabolic rate and energy expenditure, and moderate weight loss was seen in studies lasting over 6 weeks. However, there are some concerns about its safety being under-researched and the numerous side effects that have been associated with it.
  • Caffeine Anhydrous (200 mg): Numerous studies have shown that caffeine boosts energy levels and alertness, as well as mildly boosting the metabolism, causing a small increase in the number of calories used by the body. The effects shown in studies are small, and some studies are inconclusive.
  • Sida Cordifolia (100 mg): More commonly known as Country Mallow, this plant naturally contains ephedrine, an amphetamine-like substance that was incredibly popular in diet pills before being banned by the FDA in 2004. Safety concerns have caused the removal of ephedrine from many diet pills over the past few years, even in countries that have not yet banned the stimulant.
  • Guarana (65 mg): A berry that is naturally high in caffeine, it is often an ingredient in energy drinks and diet pills.
  • Green Tea 40% (50 mg): Green tea is high in a group of antioxidants called catechins. Studies have suggested that catechins and caffeine both increase energy expenditure by boosting the metabolism temporarily. However, the metabolic increase caused by green tea is limited. One study found that the use of green tea was not enough to counteract weight gain following a very low calorie diet.
  • N-Acetyl-L-Carnitine (20 mg): Supplementation of this ingredient has been found to improve fat oxidation. Supplementation is usually higher than the amount that is included in this diet pill, with recommended doses falling between 1 and 3 grams per day.
  • CLA (50 mg): Short for Conjugated Linoleic Acid, CLA is a group of chemicals that are found naturally in dairy products and beef. There is some evidence that the supplementation of CLA may reduce body fat, but may not reduce body weight.

Matrix T5-XT Extreme Side Effects

There are numerous ingredients in Matrix T5-XT Extreme that can cause a wide range of side effects. Several of the ingredients are stimulants that various medical authorities have stated are dangerous to use.

The biggest cause for concern in this diet pill is the inclusion of the ingredient Sida Cordifolia, which contains ephedrine. Ephedrine is a stimulant that is similar to amphetamines, and has been clinically proven to be incredibly dangerous. Potential side effects of Sida Cordifolia include dizziness, restlessness, irritability, insomnia, headache, lack of appetite, nausea, vomiting, flushing, tingling, difficulty urinating, and pounding heartbeat, high blood pressure, heart attacks, muscle disorders, seizures, strokes, irregular heartbeat, loss of consciousness, and death.

With such a huge list of potential side effects, and the knowledge that this ingredient has been banned in several countries, including the USA, because of the dangers associated with its use, customers should avoid all products using this ingredient.

Bitter orange carries a wide range of side effects because of its stimulant properties. These include increased blood pressure and increased heart rate, fainting, heart palpitations, and even stroke and heart attacks in healthy patients. The mayo clinic recommends that people avoid the use of citrus aurantium, because of the dangers associated with its use. Potential customers who already have cardiac-related health problems should never use citrus aurantium, as it can exacerbate pre-existing heart conditions. The effects of citrus aurantium are intensified when combined with caffeine, another ingredient present in this diet pill.

Caffeine also has a number of different side effects associated with its use. They are more common when consuming high doses of caffeine, and so consumers should monitor their caffeine intake from other sources such as tea, coffee and energy drinks. Side effects can include headaches, nausea, increased heart rate and blood pressure, jitteriness, heart palpitations, increased urination, dehydration, and insomnia.

This concoction of side effects can also cause anxiety, or make anxiety worse, making this product unsuitable for use for anyone who has depression, anxiety or other mental troubles.


Avoid if you are pregnant or breastfeeding. Not suitable for those who have high blood pressure or any heart problems.

Matrix T5-XT Extreme Customer Feedback

The official website contains several testimonials from customers. On the reviews section, customers are encouraged to leave their own reviews, and it appears that negative reviews are not removed, making this a surprisingly accurate representation of customer views.

Many of the reviews are short and vague, but are positive:

It’s my second week and it’s been good so far.

Can already notice a difference, they really work!!

Luckily there are also some more detailed reviews available:

Very happy with my product, easy to follow instructions, tablets are a little bit but easy to swallow and can be cut down to size if needed so. The first time I took one I felt skittle dizzy after about 3 hours but I no longer get that. In 4 days I lost 6lbs! Very happy!

I’ve only been using these for a week but I have noticed a huge difference in energy levels and already a bit of weight loss…awesome!

In general we find that some customers who experience weight loss are willing to ignore side effects because they are experiencing significant weight loss. The above reviewers and the writers of other positive reviews may have experienced some side effects that they did not feel were worth mentioning.

There are some outright negative reviews of the product, one of which includes mentions of some of the possible side effects listed above:

I am a healthy young girl, I don’t smoke or drink. I am very lucky I have a good heart otherwise I would be dead. The second day I took tablets I started vomiting constantly and my body started to shake and my words mumbled. My parents got to my house and took me straight to the hospital. The ECG proved I was having pulpatations. The doctor said I might as well have been taking speed when they had a good look at the tablets. They put several drugs into me. I have not been the same since and will be having blood tests. I am constantly lethargic and extreme head aches and nightmares.

Matrix Nutrition has replied to all customers who have left reviews, and they believe that the final review mentioned here is unusual, stating,

We have no previous experience of this response to the tablets. These are a powerful fat burner and need to be taken in a responsible manner.

Obviously these replies are a sales tool to negate the impact of negative reviews and to display good customer service. However, the potential negative side effects of this product are clear, and we feel that using this product is taking a big risk with your health.

Matrix T5-XT Extreme Money-Back Guarantee

There is no money-back guarantee on Matrix Nutrition products.

Customers can return unopened and undamaged products within 14 days. Products that are faulty, damaged or incorrect when delivered can be returned within 30 days of receipt, but customers should contact the company immediately to let them know about the problems with the product. In the case that faulty, damaged or incorrect items need to be returned, the company will arrange to have the product collected or will pay for the return delivery cost.

Where To Buy Matrix T5-XT Extreme

Matrix T5-XT Extreme can be purchased from the official website, At this time, it appears it is only available to those who are living in the UK. One bottle of 60 tablets costs £19.95, a saving of £20.04 off the original price. There are discounts when customers are purchasing more than one bottle of the product.

There is also a larger bottle of 120 capsules, which offers even better value, being prices at £29.99.

The only delivery option available in next day delivery, which costs £3.99, unless the customer is spending over £75, in which case delivery is free.

Watchdog Verdict

Even though it seems that many people have lost weight using Matrix T5-XT Extreme, we cannot recommend the product, due to several reasons.

Even though the company describe their product as a strong fat burner and appetite suppressant, they do not make it clear just how unpredictably dangerous some of the ingredients are, especially Sida Cordifolia, which contains ephedrine.

Even if they had made this clear, the use of ephedrine is illegal in some countries, and there are countless medical bodies, doctors, medical experts and websites that strongly recommend avoiding this ingredient.

The side effects associated with the use of Matrix T5-XT Extreme should be enough to put off people from purchasing the product, because no amount of weight loss should condone the use of amphetamine like chemicals that can, and have in the past lead to heart attack and death. One of the customer reviews confirms how dangerous this diet pill can be, as she was admitted to hospital because of using the product for just two days.

Not only do we feel that this product is not a healthy and viable weight loss option, but we stress that customers should not even consider this product when trying to speed up their weight loss.

We do not recommend Matrix T5-XT Extreme.

How does Matrix T5-XT Extreme compare to Phentaslim?

Criteria Matrix T5-XT Extreme Comparison Phentaslim comparison
Clinically Proven Ingredients
Side Effect Free
Positive Customer Reviews
24/7 Support
Money-back Guarantee

Disclaimer: Our reviews and investigations are based on extensive research from the information publicly available to us and consumers at the time of first publishing the post. Information is based on our personal opinion and whilst we endeavour to ensure information is up-to-date, manufacturers do from time to time change their products and future research may disagree with our findings. If you feel any of the information is inaccurate, please contact us and we will review the information provided.

Have Your Say

4 comments on 'Matrix T5-XT Extreme'

  1. I started these 2 months ago along with my husband ,cause us to have diarrhoea ,made us irrational ,and irritated but worse than that the depression ,we both got was unbeleivable would not recommend these to anyone ,need banning !

  2. I was taking these for several months last year and lost a lot of weight but it is similar to taking amphetamines.. VERY rushy, feel your heart pounding and sweaty palms. Over time my body became more used to them and they didnt feel as ‘rushy’ but i decided to stop taking them as i had concerns about the side effects. they are VERY strong and not for the faint hearted

  3. Do not touch these pills they had me high as a kite one minute then put me into a severe depression the next, could not sleep my heart was racing 100mph dangerous pills AVOID

  4. Just want to add that I tried these on and off for 6 months. Everytime they gave me bad diarrhea and I ended up throwing them away and never managed to finish the only bottle I bought

Add your comment

We'd love to get your opinion. Please keep it clean and stay on topic, no spamming. Comments are moderated before being made live. Your email address will not be published.
We cannot give advice about medical conditions or prescription drugs. Please direct specific medical questions to your doctor.

This site uses Akismet to reduce spam. Learn how your comment data is processed.