Epidermal growth factor (EGF) is a growth factor that can promote the proliferation and keratinization of epidermal cells in humans and animals. Human epidermal growth factor is a kind of important growth factors of human endocrine, through conducting signals, a series of biochemical changes in the cell can be induced to initiate the genes involved in cell division, then the cell can be proliferated by making the stationary cell enter into the cell division stage. A variety of cells derived from the ectoderm and endoderm, such as cornea, epithelium, mammary gland, liver, nerve, neuroglia, amniotic membrane and adrenal medullary cells, can be stimulated to proliferate by EGF. It can not only promote the wound healing of different surfaces, but also promote the regeneration of the original tissue without scar formation. Therefore, EGF has been widely used in the repair of burns, wounds, cornea, peptic ulcer and other aspects, and also has a good using prospect in skin care products to reduce wrinkle and pigment. 仅供实验室使用。