There is no such thing as the fastest formula to strengthen the kidneys. Chinese herbal formulas that can be used to tonify the kidneys include Jin Gui Kidney Qi Pill, Liu Wei Di Huang Pill, Gui Sui Di Huang Pill and so on. Jin Gui Ren Qi Pill is used for kidney deficiency and edema, lumbar and knee soreness (a feeling of soreness and weakness in the lumbar and knee regions), dysuria (unsmooth urination), coldness and coldness of limbs (fear of cold and cold limbs). Pregnant women should avoid taking it, avoiding room lust and qi; avoiding eating raw and cold food. Caution is advised for those with Yin deficiency and internal heat. Liu Wei Di Huang Pill, with the effect of nourishing yin and tonifying the kidney. It is used for dizziness and tinnitus caused by deficiency of kidney yin, lumbar and knee pain and weakness, tidal fever (a burst of heat, feeling that the heat comes from inside the bone to the outside), night sweating (abnormal sweating after going to sleep, but the sweating stops after waking up), and spermatorrhea. Gui Fu Di Huang Wan (桂附地黄丸), used for impotence and coldness of the waist and knees caused by deficiency of kidney yang (lack of yang qi in the kidneys), unfavorable or rebellious urination, and wheezing and coughing due to phlegm (pathological products formed by impaired metabolism of water and fluid). Not recommended for pregnant women. It is recommended to take the drug under the guidance of a professional doctor and not to use it privately.