It's easy to say what a sports endurance product can do for you. And there are plenty of companies out there making fantastic claims. But the proof is in the pool...on the trail...on the bike in beating your own best time and feeling incredible during your training. So we put ARX to the test, not only in the lab, but in real life, with real athletes.

ARX is rooted in Traditional Chinese Medicine which holds the belief that increasing performance is best achieved by unblocking the bottlenecks that impede energy, rather than simply trying to boost energy. The key to ARX's effectiveness is its ability to increase microcirculation to the muscles, specifically blood and lymph circulation, which helps redistribute lactate and allows the body to tap into this premier fuel source. This has been tested time and time again using several clinical trials.

Clinical Trials

ARX has been the subject of two human clinical studies showing its effectiveness in improving lactate clearance and muscle recovery:

Human Clinical 1 Running: In a double-blind, placebo-controlled trial, researchers compared the effects of either 500 mg or 1gram of ARX versus placebo on the clearance of lactate. After 2 weeks, test subjects exercised on a treadmill until exhausted. Lactate levels were measured immediately after exercise and 15 minutes later to calculate the rate of lactate clearance. The high dose group continued taking ARX for another two weeks, and the treadmill test was repeated.

After 2 weeks, those taking 1 gram of ARX showed significant improvements in lactate clearance compared to both the 500mg group (50% higher clearance) and the placebo group (157% higher). Subjects taking ARX experienced an 80% increase in lactate clearance after 2 weeks, and a 110% increase after 4 weeks. They also showed improved heart rate recovery after 4 weeks. ¹

Human Clinical 2 Cycling: In this double-blind, placebo-controlled trial, subjects were given 1,350 mg of ARX (or placebo) and performed an exercise test, followed by the measuring of lactate levels at 3 minute intervals post-exercise for a total of 12 minutes. Compared to placebo, those taking ARX accumulated significantly lower levels of lactate over the recovery period.

At the end of 12 minutes, the ARX group's lactate levels were 7% less than baseline values while the placebo group's levels increased by 23% over baseline.

¹ ARX improves the rate of lactate clearance and heart rate recovery in a double-blind,
placebo-controlled human treadmill study. Beijing Medical University, Sports Research Institute, Beijing, China (1996).
² ARX reduces post-exercise accumulation of lactate in a randomized, double-blind, placebo controlled human cycling study. St. Cloud State University, Human
Performance Laboratory, St. Cloud, Minnesota, USA (1998).