Rhodiola rosea is a remarkable herb that has a wide and varied history of uses. It is thought to strengthen the nervous system, fight depression, enhance immunity, elevate the capacity for exercise, enhance memory, aid weight reduction, increase sexual function and improve energy levels.It has long been known as a potent adaptogen. Adaptogens are natural plant substances that increase the body's non-specific resistance and normalise the functions of the body. Studies using proofreading tests have demonstrated that Rhodiola rosea enhances memorisation and concentration ability over prolonged periods. It increases the bioelectrical activity of the brain which improves memory and brain energy.