Our skin, a barrier, holds so much more than meets the sight. A complex and dynamic organ, it's a universe of its own. Beneath the surface lies a structure of tissues, each working in cooperation to keep us alive. https://sites.google.com/view/natural-skin-collagen-producti/%D8%A7%D9%84%D8%B5%D9%81%D8%AD%D8%A9-%D8%A7%D9%84%D8%B1%D8%A6%D9%8A%D8%B3%D9%8A%D8%A9