Stimerex-ES Review: Old VS New 2019 UPDATED

Stimerex -ES : Old VS New 2018 UPDATE

The next fat burner we will be covering in this ‘Old VS New’ series is Stimerex -ES by Hi-Tech Pharmaceuticals. Stimerex, like many products, fell victim to the forced revisions due to it containing the ingredient DMAA. As we mentioned in other blog posts, the FDA and DMAA have been going in and out of the courts since around 2015.

Currently this means that manufacturers, like Hi-Tech, can’t use this ingredient in their products. So manufacturers reformulated their products without DMAA.

The Old:

Stimerex was of the stronger thermogenics available. Below we have both the old and new labels with the changed ingredients highlighted. From this you see there were a few changes, from swapping ingredients to even adding more. The old formula contained:

  • Acacia Rigidula Extract,
  • 125 mg of Phenylethylamine Alkaloids (R-Beta-Methylphenylethylamine, B-Phenylethylamine),
  • Theobroma Cocoa Extract,
  • Phenylethylamine HCl,
  • and finally, 1,3- Dimethylamine HCl (DMAA).

stimerex OLD VS NEW

The New:

The new formula contains a few different ingredients, including:

  • Senegalia Berlandieri Extract,
  • N,N-Dimethylphenylethylamine,
  • Theobromine,
  • 2 Aminoisoheptane,

But what does that mean for formula and how does it compare to the previous version ?

Senegalia Berlandieri Extract V. Acacia Rigidula Extract

Firstly, we have Senegalia Berlandieri Extract compared to Acaia Rigidula Extract. Both ingredients are intense stimulants. Senegalia Berlandieri is also known as Acacia Berlandieri. This is a related species to Acacia Rigidula and they share many of the same alkaloids. Because of this, they share the same functions.

The Senegalia Berlandieri extract increases energy, suppresses your appetite, while also providing a feeling of euphoria. Compared to Acacia Rigidula Extract, the compounds are actually very similar. However like with DMAA, Acacia Rigidula has had it’s feuds with the FDA and is currently not available for usage in dietary supplements.

Stimerex PEA alkaloids

The Alkaloids

We mentioned in the previous comparison that Senegalia Berlandieri Extract and Acaia Rigidula Extract share similar alkaloids. The Phenylethylamine Alkaloids show some of these alkaloids. These includes Phenethylamine, N-Methylphenethylamine and N,N-Dimethylphenethylamine. The potency for these alkaloids are stronger in Acacia Rigidula. Which explains why in the new formula there is a higher yielding for the alkaloids.

In the highlighted section, you can see that R-Beta-Methylphenylethylamine is not in the new formula. This is because R-Beta-Methylphenylethylamine was the alkaloid the FDA was against being used in dietary supplements. So instead we see a higher concentration of what alkaloids are present including N,N-Dimethylphenylethylamine.

These alkaloids have a wide range of uses including being stimulating, improving mood and cognitive performances. Another trait marketed with stimerex is it’s “No Crash formula”. This property has been noted with the N,N-Dimethylphenylethylamine alkaloid. So we expect this formula to have a even smoother come-down effect.


Theobromine V. Theobroma Cocoa Extract

Theobroma Cocoa (Cacao) Extract originates from coco beans. Extracts from cocoa beans actually contain theobromine. However in addition to the theobromine, theobroma cocoa extract also has caffeine. So why use theobromine?

The primary alkaloid found in cocoa and chocolate is theobromine. Theobromine  is used as a bronchodilator and a vasodilator. It is closely related to caffeine. However unlike caffeine, theobromine has an additional methyl group, making it’s effects last longer.

stimerex breathe easy

2-Aminoisoheptane V. 1,3- Dimethylamine HCl

2-Aminoisoheptane; also known as DMHA. Typically it is the potent stimulant in a product used to replace DMAA. In fact, DMHA shares similar structures to that of DMAA. They actually work in the same fashion. They both boost dopamine and noradrenaline uptake while slowing down re-uptake. DMHA is also a bronchodilator.

What this means is that it helps relax and open air passages in the lungs, making it easier to breathe. But like with DMAA, DMHA has intense stimulating properties. With most stimulants this includes other benefits including an energy boost, focal aid, appetite suppression and some mood boosting properties as well.


What Can You Expect From Stimerex?

We would say Hi-Tech did a great job with replacing ingredients, as well as adding others to fill in the areas that may have not been perfect. As a whole, Stimerex is going to be a strong fat burner. It’s focus is definitely more in thermogenesis than other fat burning classifications. However you will still get those benefits (i.e. the focus, energy, and appetite suppression).

Although Stimerex didn’t make it in our Best Fat Burners of 2019 post, we would classify it as being stronger than Lipodrene but not quite stronger than Black Mamba.

But lets checkout some customer reviews too…
  • Good product Review by Jacob
    Overall Product Review

    Works amazingly well. One of the best thermos out there (Posted on 5/14/2018)

  • Stimarex Review by Nikkid
    Overall Product Review

    Energy all day,no jitters and no crash. Great product. (Posted on 4/18/2018)

  • Great Energy! Review by rosalie
    Overall Product Review

    It is a good energy and appetite suppressant. (Posted on 3/27/2018)


† While the intention of the information above is for reference only, it is our goal to maintain and display accurate information. But, we can’t guarantee it represents the latest formulation of the product. But If you have any concerns, please visit the manufacturer’s website. Also, the information above is not a representation of our views at Same Day Supplements. Rather, these are the views and information provided by product’s manufacturer. The Food and Drug Administration has not evaluated these statements. Finally, the intention of this product is not to diagnose, treat, cure or prevent any disease or illness.