How many amino acids make up the hair?

Hair is primarily composed of a protein called keratin, which is made up of amino acids. There are 20 different amino acids that can be assembled in various sequences to form the keratin molecules that give hair its structure and strength. These amino acids are essential for the formation of the disulfide bonds that contribute to the hair's durability and texture.

Understanding the composition of hair at the molecular level is crucial for hair design and care, as different treatments and products can affect the hair's keratin structure. Knowing that 20 different amino acids are involved also highlights the complexity and variability in hair types and textures, making it an important concept for those in the field of hair design.