MICROANATOMY

Detailed explanation-1: -Most of the cortical cells are composed of a protein known as keratin (Robbins, 2012). At the molecular level, keratin is a helical protein (Pauling & Corey, 1950). There are two types of keratin fibres that exist in hair: type I with acidic amino acid residues and type II with basic amino residues.

Detailed explanation-2: -Where Does the Keratin in Hair Products Come From? Hooves, feathers, animal hair, and horns are made of keratin. In fact, when you purchase products containing keratin, they are using ground animal parts to make the product. There is no synthetic keratin, and keratin can’t be sourced from vegetables.