text: Note: When searching for the right rhodiola supplement for you, keep in mind that the plant contains over 140 active ingredients—the most potent of which are rosavin and salidroside. In addition to meeting the 500 milligram dosage, rhodiola supplements should be standardized to contain three percent rosavins and one percent salidrosides at minimum. Clinical studies show that these two phytochemicals—working in tandem at this ratio—reduce stress and are crucial to rhodiola’s efficacy. Be sure to double check your labels for this power duo!