1% rosavins and salidrosides minimum. Solaray Guaranteed Potency Herbs deliver confidence by providing exacting and consistent dosing of thoroughly tested herbs of the highest quality available. Rhodiola is an adaptogenic herb that has been used in Russia for many years.
First trial was in Russians trench fighting in Afghanistan. Those given Rhodiola were able to stay focused and perform well even after 12 hours of fighting. Improves energy and endurance.