Du-Var Laboratory is member of the International Aloe Vera science council and can mark its products with the AVISC seal. This seal assures a manufacturer’s commitment to a high level of quality and purity of aloe vera in its products. It is a symbol that stands for integrity, honesty, and quality. The seal demonstrates that a company has passed a rigid, professional inspection and audit for aloe vera use and products. It also guarantees that the quality and purity of aloe vera has been scientifically validated and certified by an independent group of professionals.