Keratins

Keratins are a family of strong, insoluble proteins that give structure, strength, and protective properties to many of the body’s cells and tissues, particularly in the skin, hair, nails, and eyes. They are the primary structural proteins which act as a barrier to the environment and help maintain the integrity of the body. Keratins are a key component of the skin’s epidermis, or outermost layer, where they play an important role in providing protection against dehydration, infection, and damage from sunlight. Additionally, keratins are present in the cornea of the eye, where they form a protective layer that helps maintain optical clarity and vision. Keratins are also found in the hair follicles, fingernails, and toenails, where they help provide structural integrity and strength. In addition to their structural role, keratins play a critical role in cell-to-cell communication, wound healing, and immune system responses.