Growth factors are a kind of organic substances that are necessary to regulate the normal growth and metabolism of microorganisms, but cannot be synthesized by simple carbon and nitrogen sources.

Growth factor is a multi-effect polypeptide substance, which regulates the growth and function of cells by binding to specific cell membrane receptors. Because growth factor is secreted by normal cells, it has neither drug toxicity nor immune response.

After the growth factor is injected into the body, it will be absorbed by the human body like normal saline, thus stimulating the proliferation of autologous tissue, so it is unlikely to take out the growth factor. Growth factor removal and repair surgery is actually to take out the self-tissue that proliferates disorderly due to the stimulation of growth factors.

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1986, American scientists StanleyCohen and RitaLevi-Montalcini won the Nobel Prize in Physiology or Medicine for "discovering growth factors".

Epidermal growth factor: a powerful cell division factor with various biological activities. EGF has the functions of repairing epidermis, anti-aging, lightening pigmentation, calming fine lines and moisturizing. The content of EGF in human body directly determines the youth of skin, so EGF is also called "beauty factor".

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