Human follicle dermal papilla cells are located in the dermal papilla at the base of hair follicles. Embedded in a laminin and collagen IV rich extracellular matrix, they are essential for induction and maintenance of hair growth. Since these cells express androgen receptors, they represent a well-suited model system for androgen-related research. Creative Bioarray offers Human Follicle Dermal Papilla Cells (HFDPC) produced at Creative Bioarray's cell culture facility from normal human dermis of the lateral scalp. Information on donor hair and skin color is available for each lot. Shortly after isolation, all Creative Bioarray Human Follicle Dermal Papilla Cells are cryopreserved at passage 2 (P2) using Creative Bioarray's proprietary, serum-free freezing medium, Cryo-SFM. Each cryo vial contains more than 500,000 viable cells after thawing. Proliferating cell cultures are made from 500,000 cryopre -served cells that have been thawed and cultured for three days at Creative Bioarray.