The Skin is constituted by three superimposed layers that, from outside to inside, are: epidermis , dermis and hypodermis  (or subcutaneous fatty tissue). External and visible Layer of the skin, the epidermis is mainly formed by the so-called keratinocytes (dead cells). Continuously replaced by desquamation and replication, new keratinocytes form regularly inside it, which approximately 30 days later reach the surface. And, after a progressive hardening, […] More

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