FinaFlex Stimz Review

Stimz, as the name would imply, is a stimulant driven energy supplement by FinaFlex which contains just four primary ingredients…

FinaFlex Stimz



Caffeine is usually the basis for energy supplements because it is reliable and effective, assuming you haven’t built up an insurmountable tolerance to the stuff.

By triggering the release of Noradrenaline, Caffeine increases alertness, perceived energy, and can even increase fat oxidation.

It is perfectly safe at moderate doses, although the precise amount FinaFlex has put int STIMZ remains unknown.


IRISINXD is a combination of EGCG (from Green Tea Extract) and N-Coumaroyldopamine, the combination of which may increase focus additively, perhaps even synergistically, with Caffeine.

EGCG has been shown to function as COMT-inhibitor in vitro, which can effectively extend/amplify the Noradrenaline-release caused by Caffeine, but the potency of this effect in humans remains questionable.


Theobromine is a chemical relative of Caffeine, but research indicates it is not psychoactive like Caffeine. Instead, Theobromine may act as a cardiac stimulant and has some possible mechanisms by which it may influence fat loss. However these mechanisms have not been explored at this time and Theobromine remains a pretty speculative ingredient in our view.

We wouldn’t say it contributes particularly meaningfully to the STIMZ formula.


Just as Theobromine is in the same chemical family as Caffeine, Rauwolscine (also known as alpha-yohimbine) is a chemical relative of Yohimbine. Both compounds are commonly found in stimulant-based pre-workouts and fat-burners, though most of the research in humans has used Yohimbine only. Still, Rauwolscine appears to be more potent in terms of psychoactive effects and is often the ingredient that gives high stimulant pre-workouts their edge.

Rauwolscine is bascially the ingredient that makes us consider STIMZ a “high-stim” product.

Is STIMZ Safe?

STIMZ certainly contains some speculative ingredients but none that should be considered dangerous if used correctly and responsible. Do not exceed the recommended dose.

The Bottom Line

If you like stims, you’ll love STIMZ. That’s about it. It does exactly what it’s supposed to! If you don’t do well with stimulants, just stay away…

Looking for a high-stim pre-workout? Check out our Best Pre-Workouts For Stimulant Lovers List.


  1. Lorenz, Mario, et al. “The activity of catechol-O-methyltransferase (COMT) is not impaired by high doses of epigallocatechin-3-gallate (EGCG) in vivo.”European journal of pharmacology 740 (2014): 645-651.
  2. Park, Jae B. “N-coumaroyldopamine and N-caffeoyldopamine increase cAMP via beta 2-adrenoceptors in myelocytic U937 cells.” The FASEB journal 19.6 (2005): 497-502.
  3. Heathcote, R. St A. “The action of caffeine, theobromine and theophylline on the mammalian and batrachian heart.” J. Pharmacol. & Exper. Therap 16 (1920): 327.
  4. Perry, Bruce D., and David C. U’Prichard. “[3 H] Rauwolscine (α-yohimbine): A specific antagonist radioligand for brain α 2-adrenergic receptors.” European journal of pharmacology 76.4 (1981): 461-464.
  5. Smith, Andrew, et al. “Caffeine and central noradrenaline: effects on mood, cognitive performance, eye movements and cardiovascular function.” Journal of psychopharmacology 17.3 (2003): 283-292. exists to educate the supplement community and seperate the science from the hype.

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