What is one of the main components produced by keratinocytes in the skin?

Keratin is one of the primary components produced by keratinocytes, which are specialized skin cells located in the epidermis. These cells play a crucial role in forming the outer layer of the skin and providing protection against environmental factors such as pathogens, chemicals, and physical abrasions. Keratin is a fibrous protein that contributes to the structure and resilience of the skin, hair, and nails, making it essential for maintaining the integrity of the skin barrier.

In contrast, melanin, produced by melanocytes found within the skin, is responsible for pigmentation and protecting against ultraviolet (UV) radiation. Collagen, primarily produced by fibroblasts, is a key structural protein in the dermis that provides strength and elasticity to the skin. Colliphorin is not a commonly recognized term or component in skin biology. Understanding the role of keratin specifically highlights its importance for skin health and function.