Rhodiola (Rhodiola rosea) is indigenous to the Arctic and Alpine regions of Europe, Asia, and America and has long been used as a tonic by many cultures, including the Ancient Greeks. Rhodiola is generally known as an adaptogen, a term which refers to any agent possessing the ability to support the body’s natural capacity to adapt to life’s changing conditions.* NOW® Rhodiola is standardized to 3% total rosavins and 1% salidroside.