Stimerex-ES® (Extra Strength), with its distinctive black diamond-shaped tablet, is a Hi-Tech weight loss and energy enhancement supplement – highly recognized for its unrivaled megaenergy boost and is available to help anyone needing to lose weight. Stimerex-ES® contains 25 mg Thermo-Z™ brand ephedra extract with an energy core that revolves around a fine-tuned configuration of Hi-Tech’s Thermo-Rx® stimulant-based phenylethylamine alkaloids from Acacia rigidula. The entire host of the select ingredients in Stimerex-ES® have been incorporated specifically to accomplish one primary goal, which Stimerex-ES® accomplishes better than any other energy-boost product. Stimerex-ES® is designed as the Diet & Energizer. Stimerex-ES® will have you flying wide open with energy and helping you get shredded.!Stimerex-ES® contains Acacia rigidula extract, often called the ephedrine imposter, is the most effective metabolic stimulator on the market today! It is backed by "double-blind placebo controlled studies" and its effects were released at the Arnold Classic. Acacia rigidula displays beta-2 adrenergic receptor agonist activity. It is known that increased stimulation of beta-2 receptors will promote increased metabolic rate and thermogenesis. The findings of the study indicate that Acacia Rigidula promotes significant increases in resting energy expenditure (12+%) still evident 3 hrs post ingestion. When compared to 300 mg caffeine being at 3.5% at 3 hours post ingestion. The findings of the present study indicate that the increase in resting metabolic rate exhibited with Acacia Rigidula (12+%) are actuallly superior to the findings of previous studies which reported that 10 to 30 mg ephedrine increased energy expenditure by 6.6% to 10%.