The present invention provides a method for re-growing hair in patients with androgenic alopecia by administering effective consecutive courses of Granulocyte-Colony Stimulating Factor or derivatives. After the state of re-growth is obtained, the hair growth is maintained by administering periodic courses of Granulocyte-Colony Stimulating Factor or derivatives. The invention further provides a method for increasing cuticle growth and density using a similar administration of effective consecutive courses of Granulocyte-Colony Stimulating Factor or derivatives. The increased cuticle growth and density is maintained by administering periodic courses of Granulocyte-Colony Stimulating Factor or derivatives.
