In addition to skin factors, kidney yang deficiency, kidney yin insufficiency, prolonged blood stasis, watery drinking and severe pain can all lead to darkening of the face. Under the guidance of a Chinese medicine practitioner, a dark complexion can be regulated by warming the kidney yang (warming and replenishing the yang energy of the kidneys), activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis in the body), and strengthening the spleen to promote diuresis. Kidney-Yang deficiency will not only cause darkening of the face, but also accompanied by coldness and coldness of the limbs, weakness of the waist and knees (a feeling of soreness and weakness of the waist and knees), weakness, often a feeling of coldness in the lower half of the body, unsmooth or excessive urination, and weakness of the pulse. When warming and tonifying kidney yang (warming and replenishing kidney yang), one can choose Jin Gui Ren Qi Wan. If the patient has symptoms of qi and blood stagnation such as darkening of the face, tingling under the dermatomes, petechiae on the tongue and astringency of the pulse, he/she can take tonics with the effect of activating blood circulation and eliminating blood stasis (promoting blood circulation and eliminating blood stasis in the body), such as Hematopoeia and Blood-stasis Dispelling Soup, to regulate the situation under the guidance of the doctor. This formula is mainly composed of medicines for promoting blood circulation and eliminating blood stasis, supplemented by products that promote liver circulation and nourish blood. The peach kernel, safflower, Rhizoma Ligustici Chuanxiong, and hyssop in this formula have excellent effects in promoting blood circulation and eliminating blood stasis. In normal times, you can also eat more fresh vegetables and fruits that contain more vitamins, and pay attention to going to bed early and getting up early, avoiding staying up late and not overworking. The above drugs should be taken under the guidance of a physician, and if the symptoms of darkening of the face appear, please consult a doctor in time.