All ScienceFitness GlycoSource products are tested and certified by the Informed Sport programme.
Informed-Sport is a quality assurance programme for sports nutrition products. The programme certifies that all nutritional supplements and/or ingredients that bear the Informed-Sport logo have been tested for WADA (World Anti Doping Agency) banned substances by the world class sports anti-doping lab, LGC. Athletes and sports participants choosing to use supplements bearing these logos can feel confident that the products have been through this rigorous certification process.
You can find the official registration document on the Informed Sport website here