Long-term darkening of the face is generally related to deficiency of kidney qi or kidney yang. In Chinese medicine clinics, most of the patients can be adjusted by taking Chinese medicines or tonics with the effect of warming and tonifying kidney yang (warming and replenishing the kidney yang), such as Jin Gui Kidney qi Pills and Yu Gui Pills, etc. In Chinese medicine theory, the color black is related to kidney qi deficiency or kidney yang deficiency. In Chinese medicine theory, black color is related to the kidneys, so there is the saying that the kidneys are the main source of water, and their color is black. If the patient has a long-term phenomenon of dark complexion, it is generally related to the deficiency of kidney qi or kidney yang. The color of the face is often the external manifestation of the disease, the dullness of the face is called grayish, which is one of the manifestations of yang deficiency, therefore, moderate use of Jin Gui Ren Qi Pills or Yu Gui Pills, which are specifically designed to warm the kidneys and help the yang (warming and tonifying the yang qi of the kidneys), can play a role in improving the situation. It should be noted that, in addition to proactively cooperate with the doctor for medication, attention should also be paid to timely adjustment or standardization of living habits, light diet, early to bed and early to rise, appropriate exercise, and maintain a happy mood. Patients appear dark face and exclude the influence of physiological factors, should consult a doctor in a timely manner, diagnosis and treatment by a professional physician, do not do it on your own, so as not to affect the health of the body.