Goji berries, chrysanthemums, mulberries and longan cannot nourish yin and yang deficiency. Chinese wolfberry nourishes the liver and kidney, benefits the essence and brightens the eyes (tonifies the essence and promotes the recovery of eyesight), and is used for lumbar and knee soreness and weakness (a feeling of soreness and weakness of the waist and knees) caused by yin deficiency of the liver and kidney (insufficient yin in the liver and kidney), dry mouth and throat, blurred vision, and loss of eyesight. Chrysanthemum evacuates wind-heat, clears heat and removes toxins (removes heat and toxins from the body), calms the liver and brightens the eyes, and is used for wind-heat colds, red, swollen and hot pain of the skin, and hyperactivity of the liver and yang (excessive liver yang, which causes dizziness, dizziness, headache and other symptoms) resulting in dizziness and headache, vertigo, and redness and swelling of the eyelids. Mulberry nourishes yin and replenishes blood (nourishes blood in the body), generates fluids and moistens dryness, and is used for dizziness and tinnitus caused by insufficiency of liver and kidneys (weakness of the liver and kidneys); thirst due to injury of fluids and constipation due to dryness of intestines and constipation. Longan tonifies the heart and spleen (tonifying the heart and spleen with nourishing drugs), nourishes the blood and calms the mind (stabilizing the mind and soothing the emotions by nourishing the blood), and is used for panic attacks and insomnia caused by deficiency of the heart and spleen (weakness of the heart and spleen organs), forgetfulness and excessive dreaming, and for deficiency of qi and blood, which causes fatigue and weakness, and shortness of breath and spontaneous sweating (involuntary sweating during the daytime that is aggravated by a little movement), etc. It is not recommended for people with hot constitution. It is forbidden for people with hot constitution. The combination of the four herbs has the effect of nourishing the yin of the liver and kidney, nourishing blood and brightening the eyes, and is used for dizziness and tinnitus caused by yin deficiency of the liver and kidney, vision loss, blurred vision, soreness and weakness of the waist and knees, heartburn and insomnia. It is recommended that patients should consult a traditional Chinese medicine practitioner before taking the medicine and individuals should not take the medicine on their own.