MagPro(TM): Another Modern Snake-Oil?

MagPro(TM) is a topical magnesium and MSM cream whose official site states that “MagPro was developed to help increase the range of motion for a muscle or muscle group and the magnesium actually promotes the healing of damaged tissue”. The manufacturer also states in the product FAQ that “most feel results within 10 minutes”. Sound too good to be true? It just might be.

A recent study, to be published in the Journal of Strength & Conditioning Research, put the ointment to the test in a double-blind, randomized and controlled study. The study, conducted with 38 healthy and physically active results, had participants test their endurance and flexibility after using MagPro versus after using a placebo cream. The tests were done a week apart and as it was double-blind, neither the researchers knew whether the MagPro or the placebo had been applied until after the testing had been conducted.

Based on their findings, the researchers concluded that there was no demonstrable increase on neither endurance nor flexibility. They ended their conclusion noting that “examination of alternative application techniques and other outcome measures would be appropriate”. So perhaps MagPro does work if applied in a manner (i.e. – more frequently) not looked at by this study.

However, their overall conclusion does nullify some of the manufacturer’s claims and may in-fact nullify all of them. Yet placebo is a powerful thing, so if you think it has been working for you then by all means keep enjoying those benefits. After reading this study though, if you’re looking to improve your flexibility and endurance through supplementation there’s better ways to be spending your money.


Works Cited:

“Frequently Asked Questions about MagPro.” MagPro. Web. 13 Nov. 2011. <>.

Julick, DT, M. Agarwal, J. Josephs, A. Reinmiller, and B. Zimmerman. “Effects of MagProTM on Muscle Performance.” J Strength Cond Res. (2011). Web. 13 Nov. 2011. <>.