Thermo speed, Review, Customer Opinion and Analysis… We tell you everything!

Evaluation : 3.5/5. (13 reviews)

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We present to you today THERMO SPEED!

A powerful fat burner specially designed for people practicing physical activity and wishing to eliminate their fat mass.

Presentation and promises of Thermo Speed

When it first appeared, Thermo Speed ​​was a fat burner specially intended for sportsmen and women during the dry season.
During a period of cutting, the objective is to lose a maximum of fat mass, while maintaining muscle mass. This allows you to obtain a sculpted and well-defined body, the famous dream body or beach body.

According to the manufacturer, the advantages of Thermo Speed ​​are:

  • Eliminates fat reserves;
  • Contributes to the maintenance of muscle mass;
  • Maintains the proper functioning of the body’s energy transformation processes;
  • Facilitates weight control

The manufacturer recommends taking 2 capsules of Thermo Speed ​​per day, before breakfast, before another meal, or even before training, with a large glass of water.

The maker of Thermo Speed

Olimp Nutrition is a Polish company with a solid reputation, particularly in the world of bodybuilding.
Olimp Nutrition products are very well known among fitness enthusiasts, who, moreover, do not hide their satisfaction with the quality of these products.

Even if the company is located in an Eastern European country, which suggests that it will be a source of lack of transparency, Olimp Nutrition stands out on this point.
It is enough to know that this manufacturer has its own production units, and has a large number of certifications (including GMP, or Good Manufacturing Practice) which guarantee the quality and safety of its supplements.

Thermo Speed ​​Ingredients

1. Caffeine:
Caffeine is recognized by official health organizations as a substance that reinforces and supports weight loss diets.
Caffeine stimulates lipolysis, ie the breakdown and burning of fat.
In addition, it limits, through its inhibitory activity, the formation of new fatty deposits.
By increasing thermogenesis, it also activates metabolism and calorie expenditure.
Finally, as many already know, caffeine provides an energy boost and stimulates the nervous system, which improves concentration and attention, among other things.
2. Guarana:
Guarana is a fruit with multiple virtues.
It acts as an appetite suppressant and a natural fat burner.
But that’s not all, guarana is an energy tonic that gives strength and endurance, and effectively fights fatigue. It also strengthens the immune system and boosts libido.

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To learn more about guarana, see our article on this ingredient HERE.
3. Citrus Aurauntium:
It is the active ingredient in citrus aurantium, synephrine, which gives it its powerful fat-burning and metabolism-boosting properties.
In combination with caffeine, citrus aurantium sees its fat-burning effects multiply.
And yet, this ingredient is not without risk!
Indeed, synephrine has effects similar to those of ephedrine in terms of fat burning, but also, unfortunately, in terms of side effects (heart palpitations, anxiety, headaches, sleep disturbances…). This is the reason why ephedrine was banned in France.
The same goes for citrus aurantium, which can only be used in the formulation of food supplements under certain conditions, which are as follows:

  • The amount of Synephrine should be less than 20mg per recommended daily dose;
  • The labeling must include a warning advising against the product for children, pregnant or breast-feeding women, as well as people suffering from hypertension;
  • It is forbidden to add caffeine or caffeine source ingredients in the composition of the product.

(Source : Legifrance.gouv.fr – The public service for the dissemination of law. JORF n°0163 of July 17, 2014, page 11922, text n°26).
4. Green Tea:
Green tea, rich in catechins in particular, is a well-known ingredient in fat-burning pills today.
Science has demonstrated its fat burning, antioxidant, and metabolism enhancing properties.
5. Black Pepper:
Along with its ability to stimulate thermogenesis, which is responsible for increased fat burning, black pepper acts as an ingredient-boosting agent.
Its presence therefore multiplies the effects of the synergy of ingredients present in Thermospeed.

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Scientific studies on Thermo Speed

The manufacturer does not mention any scientific studies that prove the effectiveness of Thermo Speed.

We can still talk about what science says about the different ingredients contained in its formula.

Caffeine, as we said, is an ingredient known for its ability to activate fat oxidation and thermogenesis.
We take the example of this study which aims to determine the effect of a mixture of green tea and caffeine on weight maintenance after a loss of body weight in moderately obese subjects, compared to habitual consumption of caffeine.
Study subjects lost an average of 5.9 kg during a protocol that included a 4-week low-calorie diet, followed by a 4-month stabilization program, supplemented with daily caffeine ingestion.
Researchers in this study concluded that high caffeine intake is associated with weight loss through thermogenesis, fat oxidation, and leptin suppression in women.
The mixture of green tea and caffeine improves weight maintenance in small habitual caffeine consumers.
(Source : NCBI. Department of Human Biology, Maastricht University, The Netherlands. Westerterp-Plantenga MS., Lejeune MP., Kovacs EM. Obes Res. 2005 Jul;13(7):1195-204).

Green tea has also been the subject of several clinical studies, which have demonstrated its effectiveness in weight loss and weight control.
We give you below a post published in the portal of the University of Maryland (University of Maryland, Medical center) which relates the benefits of this plant on human health in general.

Side effects and contraindications of Thermo Speed

First of all, we draw the attention of our readers to the presence of caffeine AND citrus aurantium in the formulation of Thermo Speed.
The combination of these two ingredients is not recommended by the competent health authorities, given the risk of side effects it can cause.

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Guarana can, at high doses, have significant adverse effects, such as palpitations, increased blood pressure, insomnia, nervousness and irritability, burning and irritation of the stomach, nausea and vomiting or still a serious phenomenon of dependence.

We obviously do not recommend Thermo Speed ​​to pregnant or breastfeeding women, as well as to people under 18 years of age.

Thermo Speed ​​User Testimonials

Many of the people who have tried Thermo Speed ​​are very satisfied with this supplement.
These users testify to a significant increase in the sensation of heat and perspiration, a noticeable draining action, better energy and, finally, the loss of fat, especially in the abdominal area.

Other people, however less numerous, have not observed conclusive results following the use of Thermo Speed.

Price and warranty

The bottle of 120 capsules of Thermo Speed, i.e. 2 months of treatment, will cost you approximately 25€.
You can get this supplement at most sports nutrition and fitness stores.

There is no money-back guarantee for this supplement.

To ask a question or post a comment, a comment field is available at the bottom of the page.

Alternative to Thermo Speed

If you want to consult another test about an effective and serious slimming solution, I advise you to review the article below:


“PhenQ” is a slimming tablet that combines the positive slimming effects of several dietary supplements to achieve optimal weight loss!

See the analysis and testimonials on PhenQ!

Last update: September 14, 2022.