Black sesame is neither hot nor cool. It is flat in nature, sweet in flavor, and belongs to the kidney, liver and large intestine meridians. Black sesame is sweet and flat, and mainly enters the liver and kidney meridians. It has the effect of tonifying the liver and kidney, benefiting the essence and blood, and making the beard and eyes bright, so it is suitable for the premature whitening of the beard and hair, and darkening of the eyes and eyes with a deficiency of essence and blood in the liver and kidney. If the treatment of liver and kidney essence and blood deficiency of premature whitening of beard and hair, can be used in conjunction with Mo Dai Lian, the system of He Shou Wu, chasteberry; if the treatment of liver and kidney essence and blood deficiency of dark eyes, can be used in conjunction with Mulberry Leaf. Black sesame is sweet, flat and slippery, can moisten the dryness and smooth the intestines, suitable for the elderly, after illness or postpartum, constipation and other symptoms of fluid withered blood. The adverse reactions and contraindications of this product are not clear, and should be used with caution for those with loose stools. Drugs must be used under medical supervision, do not blindly self-medication.