Skin aging is a complex biological processes influenced by endogenous and exogenous factors. The primary aim of all skin anti-aging strategies is to reverse the dermal and epidermal signs of photoaging and chronological aging. Healthy and normal functioning skin barrier is an important protector against dehydration, penetration of various microorganisms, allergens, irritants, reactive oxygen species and radiation. The skin barrier may be specifically adjusted to allow penetration of desired substances.Regenerative medicine is the science of replacing, engineering or regenerating human cells, tissues or organs to restore or establish normal form and function. It uses cells, tissues, drugs, synthetic biomaterials and devices to help patients ...