Myprotein Thermopure Review 2023: Does This Fat Burner Work?

Reviewed by Dr G. Michael DiLeo, MD

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Thermopure review

About The Brand

Myprotein is a UK-based company founded by Oliver Cookson, who also serves as the current CEO. The Myprotein brand is among the most popular names in Europe’s health and fitness supplement industry.

It is well-known for its extensive range of vitamins, fitness snacks, workout clothing, and vitamins. Myprotein has branched into a group of brands, namely Myvegan, Myvitamins, MP Clothing, and Myprotein Pro.

What Is Myprotein Thermopure?

MyProtein Thermopure is one of the best and most effective fat burners designed to reinforce your health and fitness goals. Thermopure is available in capsule form with a wide variety of ingredients, such as potent minerals and vitamins, along with other worthy additions like plant extracts. Myprotein Thermopure is designed to boost your endurance performance, enhance your everyday well-being, and support your metabolism. 
There’s so much to learn about this popular fat burner. In this in-depth, unbiased Myprotein Thermopure review, we’ll be exploring Thermopure’s health benefits, pros, cons, ingredients, and lots more. Let’s get right into it, shall we?

Does Thermopure Really Work?

Yes, it does. Thermopure utilizes stimulating ingredients like cayenne pepper that are known to boost body temperature. With the combined help of energy stimulators such as green tea and caffeine, Thermopure manages to burn unnecessary fat cells in the most natural way with little to no side effects. It also offers mood-boosting energy and optimum mental clarity that will enhance your time at the gym.

Thermopure is an effective fat-burning pre-workout supplement. As much as it helps you achieve your weight loss goals faster, it’s up to you to put in the work and maintain a healthy diet. That way, you’re assured of noticeable results by the end of your 30-day regimen.


  • Improves mental health and overall well-being
  • Zero aftertaste
  • Instant energy boost
  • Boosts macronutrient metabolism
  • Commendable mixability
  • Easy to consume


  • Unsuitable for vegetarians
  • No money-back guarantee

Myprotein Product & Coupon


Best Reputation


  • Positively-reviewed thermogenic supplement 
  • Contains nine active ingredients
  • Each bottle contains 90 capsules
  • Accelerates metabolism
  • 100% natural ingredients

Thermopure Ingredients

Myprotein Thermopure is packed with nine potent and natural ingredients that offer a specific benefit to your body. These ingredients include caffeine, L-theanine, L-tyrosine (both amino acids), black pepper, cayenne powder, and green tea extract. The additional chromium ingredient contributes greatly toward ensuring faster metabolism and optimum blood glucose levels.

Vitamins B6 and B12 help lower fatigue and exhaustion, besides strengthening the immune system. All these ingredients work together to promote appetite suppression and fat burning. Keep reading for an in-depth review of each one and their contribution to your physical and mental development.

Thermopure ingredients

Green Tea Extract

Green tea extract is a major component of Thermopure’s ingredient list. It has been proven by numerous studies to trigger fat loss and encourage a healthy lifestyle[1]. Green tea contains powerful antioxidants referred to as catechins that promote a boost in norepinephrine[2] (fat-burning hormone) production. The more norepinephrine in your system, the higher your body’s ability to burn more fat.  

Keep in mind that high amounts of green tea extract may lead to liver damage[3]. That’s why the manufacturers have included a fair 375-milligram dosage to trigger noticeable weight loss effects in your body. Compare this with the highest tolerable dose of 9.9 grams per day, or 24 cups of green tea! Side effects of too much green tea can be nausea, headache, or dizziness.


L-tyrosine is a potent amino acid that helps foster relaxation and maximum focus. It helps keep your mind clear of anything that might promote anxiety, stress, and other negative feelings. This ingredient comes into play, especially when you need to train hard in the gym without your mind deviating away from your weight loss goal. 

The 200 milligrams of L-tyrosine in Thermopure help produce a number of essential brain chemicals (dopamine, norepinephrine, epinephrine, etc.), collectively known as neurotransmitters[4]. These chemicals greatly influence your mood and leave you feeling good at the gym. L-tyrosine also plays a major role in speeding up metabolism and maintaining a healthy thyroid. 


Caffeine helps carry out a variety of healthy functions in the body when taken in moderation. Being a stimulant, caffeine increases brain activity and boosts the circulation of essential chemicals like adrenaline and cortisol[5] around the body. Some studies have also shown that regular caffeine consumption lowers your chances of developing brain-related issues[6] such as dementia and Alzheimer’s.  

When taken in excess, caffeine might trigger adverse side effects in some people. Some of the effects include increased heartbeat, irritability/anxiety, dehydration, headaches, fever, and frequent urination, among others. The 150 milligrams of caffeine content in Thermopure, however,  is just about enough to improve your focus, metabolism, and energy levels. 


L-theanine is an effective amino acid that helps alleviate insomnia and ease stress and anxiety. It might not help you lose any pounds, but it’s great for focus and cognition. L-theanine operates in a similar way as L-tyrosine by keeping your concentration levels high and offering that calming effect. When fused with caffeine, L-theanine helps offer that much-needed energy boost during workouts, keeping you physically active for longer periods. 

Some research[7] reports that L-theanine might also boost your overall immune system. Additionally, it might be effective enough to prevent and alleviate upper respiratory tract infections. More studies are required to validate these findings. 

Cayenne Pepper

Cayenne pepper contains a phytochemical known as capsaicin that not only gives it its natural spiciness but also aids a lot with weight loss. Scientists have found that cayenne pepper helps boost fat oxidation along with thermogenesis[8]. Thanks to the 50 milligrams of cayenne pepper in Thermopure, you’re bound to consume fewer calories and avoid overeating.

Cayenne pepper also contains dihydrocapsiate, a phytochemical that helps boost metabolism by metabolizing about 50 calories per day[9].

Other Ingredients

Thermopure also contains black pepper or Piper nigrum. It works more as a supportive aid and less as a fat burner. This ingredient helps boost your body’s nutrient absorption. This helps you gain more from Thermopure’s ingredients as opposed to how you would without it. The 120 gram-chromium content aids in the maintenance of your overall health and well-being. It does this by regulating your blood glucose[10] levels and keeping your sugar cravings under control.  

The B vitamins (B6 and B12) help in alleviating fatigue whilst boosting your metabolism. B vitamins also help several enzymes perform their duties, ranging from breaking down amino acids to transporting nutrients and oxygen around the body.

Alternatives To Thermopure

ProsEffective mood booster
Zero side effects
Works for both men and women
90-day money-back guarantee
Curbs food cravings
Impressive weight loss results
Powerful all-natural ingredients
Boosts mood and cognitive abilities
Encourages thermogenesis
ConsSlightly expensiveQuestionable customer serviceNot available in local stores
Full reviewPhenQ Review LeanBean Review PhenGold Review

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Health Benefits Of Thermopure

Supports Weight Loss

Thermopure contains weight-loss-friendly ingredients such as green tea, cayenne powder, and black pepper extract that support your weight loss goals in their own unique ways. Green tea, for example, is packed with certain antioxidants[11] (catechins) that increase the fat-burning hormone (norepinephrine) for faster fat loss.

Boosts Concentration Levels

The L-tyrosine and L-theanine ingredients are strong enough to boost your focus and keep you calm throughout intense workouts. These two ingredients enable alertness and mental clarity to help you extend your workout sessions without focusing too much on how hungry or exhausted you might be at that moment. 

Boosts Intestinal Health and Digestion

Myprotein Thermopure utilizes its black pepper content to help stimulate your stomach’s hydrochloric acid to improve your digestion and nutrient absorption. Black pepper also has beneficial carminative properties as well that help in reducing gas buildup and discomfort within the intestines. 

Prevents Chronic Fatigue

The B vitamins in Myprotein Thermopure provide a nutritious way to alleviate stress and chronic fatigue. Studies show that B vitamins have the ability to boost your mood and lower your body’s physiological response to stressful situations[12]. If you suffer from chronic fatigue syndrome, Thermopure might help lower the symptoms’ complexity and keep you active for most of your day.

Potential Side Effects

Every serving of Thermopure is packed with 66 milligrams worth of caffeine. That’s a pretty high amount for anyone with a sensitivity to stimulants. It might cause side effects such as dehydration, anxiety, accelerated heart rate, insomnia, headaches, and dizziness. On the product label, there’s a warning that you shouldn’t exceed the prescribed dosage of three capsules per day. The label also cautions pregnant women and children against using this supplement. 

In general, we recommend that you speak to a qualified medical professional before you try out any new supplement. Go the extra mile and go through the full label to ensure that there aren’t any ingredients used that you might be allergic to. 


Taking Thermopure is very straightforward. On the label, it says to consume three capsules every day. For best results, it’s advisable to take the pills on an empty stomach before exercise. On days when you’re not exercising, you should take one capsule three times a day (morning, afternoon, and evening).

Thermopure Reviews: What Do Real Users Say?

I’ve started going to the gym twice a day – running at lunch, weights after work. I thought maybe I couldn’t do it, but oh man I feel like I have so much energy after taking one of these. Been taking one before my run, and two half an hour before work finishes and I can go for ages 🙂 Goes Well With: Going to the gym after work when you’re feeling a bit tired!


Haven’t really noticed any difference, could just be me but not finding it effective.


These little gems are amazing! After a long day at work they get you motivated, full of energy and ready to smash a workout even when you don’t feel upto it they get you there and through it. Easy to swallow with the soft shell outer. I would recomend trying one to start to see how you react, taking two before a workout it good enough for me. I take it 30-45mins before a workout on a empty stomach with plenty of water. I agree they help with bloating tummy and speed up your metabolism


Brilliant product, see a noticable difference in a short period of time


I was a bit reluctant to buy this product, I only did it because it had so many good reviews and I have to agree that it works amazingly. It greatly boosts your workout and you feel more energized. I am extremely happy with it!


I must admit that Im very disappointed with this product. All supplements made by Myproteins works amazingly good but this one is just not working. I tried to take it in the morning, before training and I even tried n the evening and nothing.


Final Thought

Thermopure is an effective fat burner that promises positive results by the end of your full 30-day regimen. Remember that these pills are not magic. You still have to hit the gym often, stick to a healthy diet, and get some high-quality rest. Overall, Myprotein Thermopure is a legitimate supplement that will support your weight loss goals and give you your desired results. 

As mentioned above, we recommend that you speak to a qualified medical practitioner before you try out this supplement or any other one for that matter. Although it utilizes 100% natural ingredients, some of them might affect your well-being in one way or another. It’s up to you to review the ingredients on the product label and assess what might hinder you from taking them regularly. 

With that said, we hope this in-depth review helped you determine whether Myprotein Thermopure is the right fit for you. If you decide to start taking it, we hope it gives you all the benefits outlined in this article. Good luck!

Frequently Asked Questions

What is Thermopure good for?

Thermopure is packed with effective ingredients and potent vitamins that help improve your overall well-being, increase your endurance performance and support your metabolism for a smoother weight-loss journey.

How good is Thermopure?

Thermopure is a legitimate thermogenic supplement with several positive customer reviews. It boosts your performance at the gym and gives you faster weight loss results.

Will Thermopure help me lose weight?

Yes, Thermopure capsules offer positive weight loss results when taken consistently and when backed with exercise and a nutritious diet. Of course, the rate of effectiveness will depend strongly on your exercise routine, metabolism, and food/nutrient intake.

Do thermogenic fat burners work?

Thermogenic fat burners are popular for their ability to curb appetite and boost fat burning and metabolism. Take note that they don’t work magically. You must pair your thermogenic fat burner consumption with regular exercise and a nutritious diet.

How long does Thermopure take to work?

For most people, results will start to show between two to three weeks of regular consumption. The results might either be fast or slow, depending on factors such as your metabolism, diet, and exercise frequency. 

+ 12 sources

MIDSS adheres to strict procurement guidelines and relies on peer-reviewed studies, academic research institutes, and medical associations. We work mainly with peer-reviewed studies to ensure the accuracy of the information. We avoid the use of tertiary references. You can read about how we ensure the accuracy and timeliness of our content in our editorial process.

  1. Jurgens, T.M., Whelan, A.M., Killian, L., Doucette, S., Kirk, S. and Foy, E. (2012). Green tea for weight loss and weight maintenance in overweight or obese adults. Cochrane Database of Systematic Reviews, [online] 2012(12). doi:10.1002/14651858.cd008650.pub2.
  2. Endocrine Society (2022). Adrenal Hormones. [online] Available at:
  3. (2020). Green Tea. [online] Available at:
  4. Sheffler, Z.M., Reddy, V. and Leela Sharath Pillarisetty (2022). Physiology, Neurotransmitters. [online] Available at:
  5. Lovallo, W.R., Whitsett, T.L., al’Absi, M., Sung, B.H., Vincent, A.S. and Wilson, M.F. (2005). Caffeine Stimulation of Cortisol Secretion Across the Waking Hours in Relation to Caffeine Intake Levels. Psychosomatic Medicine, [online] 67(5), pp.734–739. doi:10.1097/01.psy.0000181270.20036.06.
  6. Eskelinen, M.H. and Kivipelto, M. (2010). Caffeine as a Protective Factor in Dementia and Alzheimer’s Disease. Journal of Alzheimer’s Disease, [online] 20(s1), pp.S167–S174. doi:10.3233/jad-2010-1404.
  7. Juszkiewicz, A., Glapa, A., Basta, P., Petriczko, E., Żołnowski, K., Machaliński, B., Trzeciak, J., Łuczkowska, K. and Skarpańska-Stejnborn, A. (2019). The effect of L-theanine supplementation on the immune system of athletes exposed to strenuous physical exercise. Journal of the International Society of Sports Nutrition, [online] 16(1). doi:10.1186/s12970-019-0274-y.
  8. Yoshioka, M., St-Pierre, S., Suzuki, M. and Tremblay, A. (1998). Effects of red pepper added to high-fat and high-carbohydrate meals on energy metabolism and substrate utilization in Japanese women. British Journal of Nutrition, [online] 80(6), pp.503–510. doi:10.1017/s0007114598001597.
  9. Galgani, J.E. and Ravussin, E. (2010). Effect of dihydrocapsiate on resting metabolic rate in humans. The American Journal of Clinical Nutrition, [online] 92(5), pp.1089–1093. doi:10.3945/ajcn.2010.30036.
  10. Havel PJ (2021). A scientific review: the role of chromium in insulin resistance. The Diabetes educator, [online] Suppl. Available at:
  11. Armoskaite, V., Ramanauskiene, K., Maruska, A. and Briedis, V. (2011). The analysis of quality and antioxidant activity of green tea extracts. [online] ResearchGate. Available at:
  12. Field, D.T., Cracknell, R.O., Eastwood, J.R., Scarfe, P., Williams, C.M., Zheng, Y. and Tavassoli, T. (2022). High‐dose Vitamin B6 supplementation reduces anxiety and strengthens visual surround suppression. Human Psychopharmacology: Clinical and Experimental, [online] 37(6). doi:10.1002/hup.2852.


Lisandra Fields is a freelance medical writer from Pennsylvania who creates articles, blog posts, fact sheets, and website content for health-related organizations across North America. She has experience working with a wide range of clients, from health charities to businesses to media outlets. She has experience writing about cancer, diabetes, ALS, cannabis, personality psychology, and COVID-19, among many other topics. Lisandra enjoys reading scientific journal articles and finding creative ways to distill the ideas for a general audience.


Dr G. Michael DiLeo, MD
Medical Reviewer
Michael DiLeo is a retired OBGYN and pelvic surgeon and also a retired health educator. He has many years of experience lecturing, writing newspaper articles, magazine features, web blogs, and even trade books. He also has extensive experience writing review articles on complex medical subjects at a professional's or layman's level. He has a lot of experience writing multiple-choice questions (ACT and SAT-style) to go with these review articles/lessons. He has served on admission committees for a major medical school and a residency program and knows how to edit admission essays for what these committees want to read.

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