The information provided here is not a replacement for a doctor. You shouldn't use it for the purpose of self-diagnosing or self-medicating but rather so you can have a more informed discussion with a professional TCM practitioner.
Because it is a herb specifically indicated to treat vitiligo as can be seen on Drynaria Rhizome's page.
Drynaria Rhizomes is a Warm herb that tastes Bitter. It targets the Kidney, the Large intestine and the Liver.
Its main actions are: Tonifies Kidney Yang, the Governor Vessel, Qi and Blood. Supplies Essence and supports growth. Strengthens the sinews and bones as well as clears Cold and Dampness. Treats infertility and impotence.
Because it is a herb specifically indicated to treat vitiligo as can be seen on Psoralea Fruit's page.
Psoralea Fruits is a Warm herb that tastes Bitter and Pungent. It targets the Spleen and the Kidney.
Its main actions are: Tonifies the Kidney and Spleen Yang and rises Kidney Qi. Prevent Essence leakage and holds urines.
Alopecia areata Impotence Back pain Tinnitus Impaired hearing Loose teeth Traumatic injuries Conjunctivitis Infertility Urinary difficulties