human KGF / FGF-7 protein is a member of the FGF family secreted by mesenchymal cells and has a paracrine effect on neighbouring epithelial cells. KGF is used in the culture of lung, breast, liver, and bladder organoids. In vivo, KGF is involved in wound healing and development of kidney, thymus, and hippocampus. High purity and bioactivity 19 kDa human FGF-7 / KGF protein, animal-origin free (AOF) and carrier-protein free (CF).