Primary Dermal Fibroblast; Normal, Human, Adult (HDFa) is a skin cell line with research applications in responding to pathogens, skin aging, wound healing, gene delivery, and skin diseases, including scleroderma. When grown in Fibroblast Basal Media supplemented with Fibroblast Growth Kit components, it provide an ideal cell system to propagate dermal fibroblasts in either serum-free or low serum conditions.