Cornus officinalis, or dogwood, can be taken in decoctions, pills, and powders, and there is no best way to eat it. Cornus officinalis is the dried mature fruit pulp of Cornus officinalis (Cornusaceae). It is sour, astringent and slightly warm in nature. It belongs to the liver and kidney meridians. It has the efficacy of tonifying the liver and kidney, astringent and fixing the hair loss. It is used for dizziness and tinnitus, lumbar and knee pain, impotence and spermatorrhea, frequent urination, disintegration (excessive menstrual flow or dribbling), hypoglossia, sweating, and internal heat and thirst (internal fever accompanied by excessive eating, drinking, and urination). Those who have fire in the vital gate, dampness and heat, or urination are forbidden to take Cornus officinalis. Adverse effects of Cornus officinalis are not known. If needed, please use under the guidance of a professional Chinese medicine practitioner.