Keratinocytes

Keratinocytes are the main type of cells found in the epidermis, the outermost layer of the skin. They produce a tough, nonliving protein known as keratin, which forms a protective layer that prevents water, irritants, and other environmental factors from entering the body. Keratinocytes also produce the skin’s pigment and are essential for proper skin healing. Keratinocytes are important for healthy skin, as they support normal skin functions, prevent infection, and help maintain skin’s natural vitality and youthful appearance. Keratinocytes provide protection from the sun’s ultraviolet rays, which can damage the skin and lead to skin cancer. They also protect against environmental toxins and are involved in wound healing.