Kidney yin deficiency can be used to make tea with Chinese herbs such as wolfberry, mulberry, and ripened rhizome, but there is no such thing as what flower tea is the most effective to drink. 1. Chinese wolfberry has the effect of nourishing the liver and kidneys, benefiting the essence and brightening the eyes (tonifying the essence and promoting the recovery of eyesight). It is used for deficiency, soreness of waist and knees, dizziness, tinnitus, impotence, spermatorrhea, internal heat and thirst (internal heat accompanied by eating, drinking and urinating, etc.), blood deficiency, yellowish, fuzzy eyes. 2. Mulberry has the effect of nourishing yin and tonifying blood (nourishing blood in the body), generating fluids and moisturizing dryness. It is used for Yin deficiency of liver and kidney (deficiency of Yin fluid in liver and kidney), dizziness, tinnitus, palpitation (rapid heartbeat, often accompanied by panic), insomnia, premature whitening of beard and hair, thirst due to injury of fluids, thirst due to internal heat, and constipation due to dryness of intestines and bowels. Do not take it if you have cold spleen and stomach (weak and cold spleen and stomach), or have diarrhea and loose stools (thin and unformed stools). 3. Radix Rehmanniae Praeparata has the effect of tonifying blood and nourishing yin, benefiting the essence and filling in the marrow. It is used in treating blood deficiency, palpitation and dizziness (intense heartbeat and panic), irregular menstruation, discharged blood (excessive menstrual flow or dripping), deficiency of yin in the liver and kidney, and soreness of the waist and knees (a feeling of soreness and weakness in the waist and knees). It is contraindicated where there is stagnation of qi and phlegm, distension and pain in the epigastrium (abdomen), and loose stools with little food. The effective dosage of wolfberry, mulberry and ripe rhizome in tea is limited and generally cannot achieve a therapeutic effect, if you want to achieve the desired effect, it is recommended that regular treatment be carried out under the guidance of a doctor