Are GPS products free of banned substances?

Our GPS Adapt, Hydrate, Energize, Circulate, Rebuild and Reset products have been tested and are free of banned substances by an independent laboratory and are Informed-Sport certified. These products are tested by LGC, an anti-doping laboratory organization and are certified through their Informed-Sport program. Informed-Sport Certification can be identified by the below logo and found on each individual product page on