Functions of the Liver
The Liver manifests in the nails.
Commentary: The nails are the surplus of the sinews and are associated with the Liver, nourished by the Liver Blood. If Liver Blood is sufficient, the nails are in good shape, have a rose color and are elastic. If Liver Blood is the Liver is weak deficient and the Liver is unable to supply enough Blood, it can cause the nails to be pale in color, dry, cracked or brittle.