Imperial Nutrition Thermal Spark: Where Has The Strongest Fat Burner Gone?

by Nader Qudimat
Updated July 19, 2023

Thermal Spark, a product from Imperial Nutrition, is marketed as an extreme fat burner.

But what does it offer?

This review aims to provide an in-depth look at the product, its ingredients, and its effects.

What Is Thermal Spark?

Thermal Spark is a dietary supplement designed to aid in weight loss.

It claims to increase your body's metabolic rate, help it metabolize fat more efficiently, elevate your mood and energy levels, and suppress your appetite.

Thermal Spark Review

Thermal Spark, much like Excelsior, is a pre-workout supplement that profoundly impacts energy levels, focus, and endurance.

However, the exact mechanism of action and the full list of ingredients remain somewhat of a mystery.

One of the key effects of Thermal Spark is its ability to provide high energy levels that last throughout the day.

This is similar to Excelsior, known for its long-lasting energy boost.

These supplements provide a sudden spike followed by a crash and a sustained high energy level that can help you power through intense workout sessions.

Another notable effect of Thermal Spark is its impact on focus.

Users have reported experiencing heightened concentration levels and mental clarity after taking the supplement.

Again, This is a characteristic it shares with Excelsior, also known for enhancing focus.

One of the intriguing aspects of Thermal Spark, and indeed Excelsior, is the possibility that it contain ingredients not listed on their labels.

This speculation arises from the fact that the effects produced by these supplements seem to surpass what one would expect from their listed ingredients.

For instance, Excelsior is known for its potent effects despite having a relatively small serving size and a seemingly simple formula.

The supplement's ability to suppress appetite, enhance focus, and provide sustained energy has led some to believe that additional, undisclosed ingredients might contribute to its potency.

It's important to note that while these effects can be beneficial for workout performance, they may also come with potential downsides.

For example, the appetite suppression caused by these supplements can make it challenging to consume enough food for optimal muscle growth and recovery.

Additionally, high energy levels can sometimes lead to difficulty sleeping if the supplement is taken too late in the day.

Thermal Spark, like Excelsior, is a potent pre-workout supplement that can significantly enhance energy and focus.

However, the possibility of undisclosed ingredients and the potential side effects warrant caution and consideration.


Thermal Spark's formula is similar to Excelsior, another product from Imperial Nutrition.

It excludes L-citrulline and Tri-Methyl Glycine, present in Excelsior, but includes Juniper Extract. Other ingredients include caffeine, Kigelia Africana (a supposed DMHA version), and other stimulants like Bitter Orange.

  • DMHA (Kigelia Africana Extract): DMHA, also known as 2-aminoisoheptane, is a stimulant often used in pre-workout supplements to increase energy and focus. It's believed to increase levels of dopamine and noradrenaline, neurotransmitters that can enhance mood and motivation.
  • Cacao Extract: Cacao extract is rich in flavonoids known for their antioxidant properties. It may also have a mild stimulant effect due to the presence of theobromine, a compound similar to caffeine.
  • Caffeine: Caffeine is a well-known stimulant that can increase alertness, focus, and energy levels. It can also enhance athletic performance by reducing perceived exertion.
  • Juniper Extract Berry: Juniper berries are often used for their antioxidant and anti-inflammatory properties. They may also have a diuretic effect, helping remove excess body water.
  • Bauhinia Purpurea Extract: Bauhinia Purpurea is a plant often used in traditional medicine. Some research suggests it may have thyroid-stimulating properties, potentially increasing metabolism and aiding in weight loss.
  • Bitter Orange Extract: Bitter orange extract contains synephrine, a compound that can stimulate the nervous system, increase metabolism, and help break down fat. However, it can also increase heart rate and blood pressure, so it should be used cautiously.
  • Octopamine: Octopamine is a compound that is similar to the neurotransmitter norepinephrine. It may have fat-burning properties and can also act as a mild stimulant.
  • Hawthorne Extract: Hawthorne is often used for its cardiovascular benefits. It can help improve blood flow, reduce blood pressure, and strengthen the heart muscle.

DMHA (Octodrine)

DMHA, or Octodrine, is a central nervous system stimulant that boosts energy levels and enhances focus.

It is often used in pre-workout supplements to improve athletic performance.

DMHA has a similar structure to compounds such as DMAA, known for their potent stimulatory effects.

This compound works by increasing levels of dopamine and noradrenaline in the body; neurotransmitters associated with increased energy, focus, and a sense of well-being.

Research on DMHA is limited, but anecdotal evidence suggests that it may have similar effects to other more well-studied stimulants.

It's important to note that due to its powerful effects, DMHA should be used responsibly and under the guidance of a healthcare professional.

Caffeine Anhydrous

Caffeine Anhydrous is a dehydrated form of caffeine that is often used in sports and weight loss supplements.

It is well-known for its ability to provide energy and alertness quickly.

Caffeine works by blocking the effects of adenosine, a neurotransmitter that promotes sleep and relaxation.

This leads to increased alertness and wakefulness.

In addition, caffeine can also enhance the use of fat as fuel, thereby aiding in weight loss.

Numerous studies have shown the benefits of caffeine for physical performance.

For instance, one study found that caffeine can improve endurance in both high-intensity and prolonged exercise.


The effects of Thermal Spark can vary depending on the dosage.

At one capsule, the energy increase and mood elevation are noticeable but not very apparent.

It's almost like a gentle nootropic at this dosage.

However, at two capsules, Thermal Spark becomes a powerhouse.

The energy flow is consistent and lasts for about eight to nine hours.

It's not a jittery energy, but a steady, focused energy that makes you feel like your brain is working 30% faster.

Alternatives To Thermal Spark

While Thermal Spark is a potent fat burner, it's out of stock so you can consider other alternatives.

  1. DMAA Fat Burners: These are a range of fat burners that contain the potent stimulant DMAA. They are known for their powerful thermogenic effects and can help to significantly increase energy levels and fat burning. However, it's important to note that DMAA is a controversial ingredient and has been banned in many countries due to potential health risks.
  2. Smash AMF: This pre-workout supplement enhances energy, focus, and endurance. It contains a blend of caffeine, beta-alanine, and citrulline malate. While it doesn't contain the same ingredients as Thermal Spark, it could offer similar benefits in terms of boosting workout performance.

Appetite Suppression

Perhaps the most impressive effect of Thermal Spark is its appetite suppression.

At two capsules, appetite suppression is incredibly potent.

It's so effective that you might have to force yourself to eat.

Thermal Spark is an excellent aid for those trying to control their calorie intake for weight loss.

Side Effects

As with any supplement, Thermal Spark can have side effects.

The most notable side effect is that taking it at 3 p.m. might make it difficult to sleep before midnight or 1 a.m.

This is due to the potent, long-lasting energy effect of the supplement.


What is Thermal Spark?

Thermal Spark is a potent fat burner supplement that contains a blend of ingredients designed to increase energy, enhance focus, and promote fat loss.

Who is Thermal Spark for?

Thermal Spark is for individuals who are looking to enhance their fat loss efforts, increase energy levels, and improve focus. It's particularly beneficial for those following a regular exercise regimen.

Is Thermal Spark safe to use?

While Thermal Spark contains ingredients that are generally considered safe, it's always recommended to consult with a healthcare professional before starting any new supplement regimen. Some individuals may experience side effects due to the potent stimulants in the formula.

Can I use Thermal Spark if I'm sensitive to caffeine?

Thermal Spark contains potent stimulants including caffeine and DMHA. If you're sensitive to caffeine or other stimulants, it's recommended to start with a lower dose to assess tolerance.

How should I take Thermal Spark?

It's recommended to take Thermal Spark as directed on the product label. Typically, this involves taking one capsule in the morning and another in the afternoon. It's advised not to take it within 5 hours of bedtime due to its stimulant content.

Where can I buy Thermal Spark?

Thermal Spark was previously available through various online retailers. However, it currently appears to be out of stock and may be discontinued.

When will Thermal Spark be back in stock?

Unfortunately, there is no confirmed return date for Thermal Spark. It seems to be discontinued at the moment.

Are there alternatives to Thermal Spark?

Yes, there are alternatives to Thermal Spark. DMAA Fat Burners and Smash AMF are two potential alternatives that offer similar benefits.

Does Thermal Spark have any side effects?

Potential side effects of Thermal Spark may include jitteriness, increased heart rate, and sleep disturbances due to its high stimulant content. If you experience any adverse effects, discontinue use and consult a healthcare professional.

Can I use Thermal Spark while on other medications?

If you're on any medications, it's crucial to consult with a healthcare professional before starting Thermal Spark or any other supplement. Certain ingredients may interact with medications.

Bottom Line

Thermal Spark is a potent fat burner and nootropic.

Its appetite suppression is incredibly effective, and its energy and focus effects are long-lasting and steady.

Thermal Spark is worth considering if you're looking for a supplement to aid in weight loss and improve cognitive function.

However, as with any supplement, it's important to start with a lower dosage to assess your tolerance and adjust as needed.

by Nader Qudimat

Forged by iron and cold steel, I'm Nader, a mid-30s natural bodybuilder. Once a 100lb skinny guy, I've transformed into a 200lb muscular athlete with over 15 years of lifting experience. Today, I leverage my transformation and extensive experience to guide countless individuals on their fitness journeys.

Click here to check out my 12 year transformation: Natural 12 Year Transformation

Search This Site

About FitFrek

FitFrek operates as an independent platform, offering comprehensive workouts, programs, routines, guides, and unbiased reviews to accelerate your progress. We pride ourselves on our honesty, delivering straightforward and candid insights. FitFrek does not offer medical advice, diagnosis, or treatment services.

FitFrek © 2013 – 2024 All Rights Reserved
Exclusive Site of Nader Qudimat
magnifiercrossmenu linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram