👉 The term "keratinoid" refers to a type of protein found in the skin and other connective tissues, which plays a crucial role in maintaining its integrity and elasticity. These proteins are made up of a protein called keratin, which is an essential component of the cell membrane and helps to keep the skin and other connective tissues healthy. The structure of a keratinoid is unique because it has a highly ordered three-dimensional structure, which allows for the formation of complex structures such as hair
