SciTec Nutrition Thermo FX

Updated May 17, 2019.
Published May 16, 2016.

SciTec Nutrition Thermo FX is probably more suited to regular gym-goers and the bodybuilding community than it is to less active people. The reason for this is that the amino acids included are more for muscle building than general weight loss. The product is relatively inexpensive, but there is no money-back guarantee in case it doesn’t work for you.


  • May maximise muscle growth when used in combination with correct exercises
  • Could increase energy levels slightly


  • No money-back guarantee
  • Unlikely to aid weight loss
SciTec Nutrition Thermo FX
Amino acids may be beneficial for consumers who are undertaking muscle building exercises, helping to maximise their muscle gains. SciTec Nutrition Thermo FX is one product that contains amino acids, but could it also aid weight loss?

Below, we take an in-depth look at SciTec Nutrition Thermo FX to see how it can aid the consumer.

SciTec Nutrition Thermo FX Overview

What you need to know about SciTec Nutrition Thermo FX

The customer reviews we were able to locate were generally positive, but limited; one customer mentioned that they were already using other weight loss supplements, whilst another saw benefits when using it alongside a very strict diet and exercise regimen, while training for a bodybuilding show.

L-carnitine can reduce body fat, but this is primarily seen in the elderly and not in other age groups. L-Carnitine is most beneficial for individuals who exercise regularly and who are trying to build strength and muscle. It reduces fatigue after strenuous exercise, and also helps to speed up recovery from exercise, with studies showing less muscle damage, including less muscle soreness, when taking L-carnitine than the exerciser would feel without supplementation. Tyrosine is another amino acid; it may reduce fatigue, but claims that it suppresses the appetite are unfounded.

The amount of caffeine is similar to the amount found in a small coffee or a large tea; it will have a slight effect upon energy levels, mental alertness, and could provide a small boost to the metabolism. The dose is small, but this means that consumers can still have coffee and tea (provided that they still monitor their intake).

What are the side effects of SciTec Nutrition Thermo FX?

Side effects can occur, due to the inclusion of caffeine, taurine, and tyrosine. For a full list, please see the Side Effects tab below.

How much does SciTec Nutrition Thermo FX cost?

It all depends on the retailer, but around £14.95 seems to be typical for a single pack.

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

SciTec Nutrition Thermo FX Key Features

SciTec Nutrition Thermo FX is an effervescent powder product that contains several amino acids as well as caffeine. It is described by the manufacturers as a stimulant product, despite caffeine being the only stimulant ingredient, which is present in very small doses.

SciTec Nutrition Thermo FX Key Points

  • Manufactured by SciTec Nutrition.
  • 20 sachet servings per pack.
  • Contains similar amount of caffeine to a cup of tea.

SciTec Nutrition Thermo FX is manufactured by SciTec Nutrition, and is sold across Europe. The company is based in Hungary, but there is little other information available about them or their philosophy. The company do provide contact details on the official website.

How to Take SciTec Nutrition Thermo FX

Dissolve 1 packet in 300 ml water daily and drink mainly 60 minutes before training. Carbonated formula, don’t close lid immediately if mixed in bottle to avoid accidental pressure build-up! Don’t swallow powder undissolved!

SciTec Nutrition Thermo FX Concerns:

  • No money-back guarantee.
  • Unlikely to aid weight loss.

What does SciTec Nutrition Thermo FX claim to do?

The manufacturers describe Thermo FX as a stimulant effervescent carnitine matrix.

THERMO-FX is a convenient, precisely dosed, ready to use formula in individual serving packets!

They add that:

THERMO-FX is our effervescent delivery system for an ingredient matrix including stimulant Caffeine and providing L-Carnitine L-Tartrate, Acetyl L-Carnitine (ALC), and the amino acids Taurine and Tyrosine popular in energy drinks.

Caffeine is well-known to contribute to mental alertness, concentration, and it can increase performance during exercise.

ALC is the acetylated form of L-Carnitine that has slightly different characteristics and it’s one of the most popular Carnitine analogues. During strenuous exercise a large portion of L-Carnitine is converted to ALC inside the mitochondria by the Carnitine O-Acetyltransferase enzyme.

THERMO-FX is fortified with Vitamin C, which contributes to:

  • normal energy-yielding metabolism
  • reduction of tiredness and fatigue
  • normal function of the nervous system
  • normal function of the immune system
  • protection of cells from oxidative stress
  • normal collagen formation for the normal function of cartilage, gums, teeth, skin and blood vessels

Does SciTec Nutrition Thermo FX work?

L-carnitine is not a good fat burner for most of the population, but is useful for consumers who are trying to gain muscle mass. L-Carnitine and L-Tyrosine are both amino acids and so could help to maximise muscle gains when exercising to increase muscle mass, or help to prevent muscle loss when on a calorie restricted diet plan. Tyrosine may also reduce fatigue, which is useful for consumers who are exercising regularly. The three amino acid ingredients are provided in useful quantities.

Taurine is most often found in energy drinks, but it has no clinical support linking it to weight loss, or any other benefits beyond being another amino acid.

Caffeine is the only ingredient that will directly help to promote weight loss. Whilst it is considered to be an effective and reliable weight loss aid, it is still considered to have a small but significant effect upon weight loss and the consumer’s metabolic rate. The dose is also fairly small, and this will also mean that it will have a very limited impact.

Overall, we suspect that SciTec Nutrition Thermo FX is unlikely to aid weight loss, or to make a significant impact upon energy levels or the consumer’s quality of their workout.

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.

SciTec Nutrition Thermo FX Ingredients

The ingredients used in SciTec Nutrition Thermo FX are listed below. The ingredient quantities are per single sachet serving.

  • Vitamin C60 mg (75% RDA)
  • Acetyl L-Carnitine HCl250 mg: There is some evidence that supplementation of acetyl-l-carnitine can reduce body fat, although the strongest results were seen in the elderly. The ingredient also boosts energy levels, and is used to treat fatigue.
  • Taurine1000 mg: Used often in energy drinks, some studies suggest that this amino acid may play a role in athletic performance, meaning that it is only useful for dieters who exercise. There is no link between Taurine and weight loss known at this time.
  • L-Tyrosine1000 mg: Some people use Tyrosine as an appetite suppressant, but there is little clinical evidence that it is effective for this use. Large doses of tyrosine may be useful for increasing alertness, especially in people who are sleep deprived.
  • Caffeine80 mg: Numerous studies have shown that caffeine boosts energy levels and alertness, as well as mildly boosting the metabolism. The effects shown in studies are small, and some studies are inconclusive.
  • L-Carnitine L-Tartrate750 mg (Providing Carnitine672 mg): One study found that supplementation of L-carnitine, L-tartrate reduced muscle tissue damage from exercise and sped up recovery time.

SciTec Nutrition Thermo FX Side Effects

Some of the ingredients used by SciTec Nutrition Thermo FX in could cause a variety of side effects.

Side effects of caffeine can include headaches, increased heart rate, increased blood pressure, heart palpitations, increased urination, dehydration, jitteriness, dizziness and insomnia.

Tyrosine can cause some side effects such as nausea, headache, fatigue, heartburn, and joint pain, but it is generally well tolerated even in fairly high doses.

Taurine is generally considered safe to use when used in ‘appropriate amounts’, but generally it still appears to be under-researched. It may make bi-polar disorder worse.

Side effects of acetyl-l-carnitine and carnitine-tartrate include stomach upset, abdominal cramps, diarrhoea, nausea, vomiting, and restlessness. They can cause a “fishy” odour of the urine, breath, and sweat, especially when consumed in large quantities. They may trigger seizures in people who have seizure disorders, although this appears to be rare.


Contains 80 mg Caffeine per serving. Not suitable for pregnant or breastfeeding women. Not suitable for those under the age of 18.Not suitable for anyone who is sensitive to stimulants including caffeine, or anyone who has any heart related health issues, including but not limited to high blood pressure.

SciTec Nutrition Thermo FX Customer Feedback

There are a few customer reviews for SciTec Nutrition Thermo FX on a website called FitFlex.

Very happy with this product,on track for my show.Used safely as directed and in combination with a carb cycle. I’m losing 1.5% bodyfat consistently each week.

Thermo-FX really worked much better than I had expected. Well worth the investment

Thermo-FX has been very beneficial is my fat loss over the past 7 weeks. Once I added it to my supplement stacks, I noticed the difference in like 2 days. I also get a bit more energy and alertness in my workouts with thermo-fx. I would strongly recommend it to those looking for faster results.

One blogger who tested the product provided the following comments:

I had the Blood Orange flavour and it didn’t taste great but it was drinkable. It does mix up fairly smoothly but it takes a lot of shaking. If you’re too keen to drink it and only give it a half-hearted shake then you’ll get a gritty drink.

We have also found older references to negative customer reviews but were unable to locate them directly. It appears that SciTec Nutrition Thermo FX used to be sold on but is no longer available there. It is possible that this is where many of the customer reviews for the product had been left, but that they were deleted when the company chose to stop stocking SciTec Nutrition Thermo FX.

SciTec Nutrition Thermo FX Money-Back Guarantee

There is no money-back guarantee for this product. SciTec Nutrition Thermo FX is sold by numerous different online retailers, each of which will have a different returns policy. Consumers should consult the individual terms and conditions of their chosen retailer before purchasing the product.

Where To Buy SciTec Nutrition Thermo FX

The product is available from numerous online retailers. SciTec Nutrition do not sell their products direct from their official website.

Dolphin Fitness offers a single pack for £14.95, plus delivery charges. The product costs £11.46 when purchased from Delivery charges may apply. From SciTec Direct, a UK website, a single pack costs £16.06 plus delivery charges.

A single pack contains 20 sachet servings, and will last for 20 days of use.

Watchdog Verdict

We are not very impressed by SciTec Nutrition Thermo FX. There is a lack of information about the manufacturer. The company who makes Thermo FX do not sell the product direct from their official website, and so the product is not covered by any money-back guarantee. However, the product seems to be cheap in general, and is sold at numerous reputable European retailers who specialise in diet pills and body composition supplements. The returns policies of individual third party retailers may vary immensely.

The product is described as a stimulant by the manufacturers, and yet has only a very small amount of caffeine, with no other stimulant ingredients. The majority of the ingredients are amino acids, which could help bodybuilders and athletes to maximise their muscle gains when used in combination with muscle building exercises. However, the amino acids have no proven benefits that contribute to weight loss.

Overall, we do not recommend SciTec Nutrition Thermo FX to our readers as either a weight loss supplement or as an energy boosting pre-workout supplement. The product may be a good option as a source of amino acids, but there are many other products that provide similar amino acids in better doses, with better reviews of the product’s taste and texture.

How does SciTec Nutrition Thermo FX compare to Phentaslim?

CriteriaSciTec Nutrition Thermo FX ComparisonPhentaslim 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

Get the conversation started by leaving your comments using the form above.

    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.