... and high quality rhodiola rosea extract powder, rhodiola extract, salidroside, rosavin, natural improve immunity product made in China, ... Bor.Used Part: The Root of Rhodiola Active Ingredients:Salidroside, RosavinOur Specification: Rosavin 1% - 5% HPLCSalidroside 1% - 5% ... % Quality Control for production process, our Rosavin and Salidroside are in line with almost all the national consumption ...