1. Rehmannia glutinosa has the effects of nourishing blood and yin, replenishing essence and replenishing marrow. It can also promote bone marrow hematopoiesis, regulate immunity, inhibit osteoporosis, resist aging, and improve learning and memory.

2. Rehmannia glutinosa is a processed product of raw rehmannia glutinosa. Traditional Chinese medicine believes that Rehmannia glutinosa has a sweet and slightly warm taste, and it belongs to the liver and kidney meridians. It has the effects of nourishing blood and yin, replenishing essence and replenishing marrow. It can be used to treat liver and kidney yin deficiency, soreness and weakness in the waist and knees, bone steam and hot flashes, night sweats and spermatorrhea, internal heat and thirst, blood deficiency and chlorosis, palpitations, irregular menstruation, metrorrhagia, dizziness, tinnitus, premature graying of hair and other symptoms.

3. Modern pharmacological research has found that Rehmannia glutinosa contains catalpol, rehmanniacin, rehmanniacin, amino acids and sugars. It has the functions of promoting bone marrow hematopoiesis, regulating immunity, inhibiting osteoporosis, anti-aging, and improving learning and memory.