Rhodiola Rosea Extract Full Spectrum, 120 Tablets, Planetary HerbalsRhodiola Rosea Extract Full Spectrum and Standardized Adaptogen for Physical and Mental Stamina. Rhodiola rosea is a legendary adaptogenic tonifier that comes from the polar Arctic regions of Eastern Siberia. Among traditional people there, it is highly valued as a strengthening tonic to increase physical and mental stamina. Full Spectrum Rhodiola Rosea combines an extract standardized to 0. 8% salidrosides and 0. 8% rosavin with a whole root extract,