- Rhodiola grows in cold regions and at high altitudes in Europe and Asia, where its roots have traditionally been used to increase resistance to physical stress.
- While there are more than 200 species of rhodiola, Rhodiola rosea is considered preferable, because it contains rosavins. Supplements generally contain a minimum of 3% rosavins.
- Rhodiola is considered an adaptogen, which is an agent that is believed to normalize functioning and stimulate healing of cells. It has been used to prevent fatigue and enhance physical and mental performance. Rhodiola may also provide benefit in bladder cancer, lung disease, and exercise and mental performance, but more studies are needed to confirm these findings.