Yi Zhi Ren warms the spleen, warms the kidneys, fixes the qi, and astringes the essence. Treatment of cold gas abdominal pain, cold vomiting and diarrhea, spitting, spermatorrhea, urination, urination, night urination. Cornus officinalis nourishes the liver and kidney, astringes essence and stabilizes detachment. Used for dizziness and tinnitus, lumbar and knee pain, impotence and spermatorrhea, frequent urination. Lycium barbarum is used to strengthen the body, produce essence, nourish Yin, nourish the kidney, benefit qi and tranquilize the mind, strengthen the body, slow down the aging process, and benefit the vital essence and brighten the eyes. Cassia seeds clear heat and brighten eyes, laxative. Used for eye redness and astringent pain, shyness and tearfulness, headache and dizziness, darkness and uncertainty of the eyes, constipation. Each one or two together can nourish yin and tonify the kidney, bright eyes.