South Carolina Barber Practice Exam

Chemical services involve the use of harsh chemicals such as bleach, hair dyes and perms. These chemicals can cause damage to the hair by breaking down the disulfide bonds that give hair its strength and elasticity. Fine hair has a smaller diameter and fewer disulfide bonds compared to other hair textures, making it more vulnerable to damage from chemical services. Coarse, medium, and thick hair have a larger diameter and more disulfide bonds, providing them with more strength and resistance to damage from chemicals. Therefore, fine hair is most likely to be damaged by a chemical service compared to other hair textures.