Indian is the most often used in US hair replacement, as it is the closest to the Caucasian texture. Caucasian hair is oval in shape, varied diameters, varied curl patterns and varied colors. Caucasian hair is not often used because if its lack of availability and price. African American hair is never used because of its short length and tight curl pattern. It is necessary to blend several other textures or chemically processed Indian hair to replicate the texture of African American hair.
Hair growing cycles vary in different cultures and parts of the world.
The Japanese, Chinese and Indians have a longer growing cycle. Most of the hair cut for use in hair replacement is from these areas because it is longer, more available and less expensive. The hair shaft is made up of three components, the medula, the cortex and the cuticle. These cuticles run in one direction from the base of the head to the tip of the hair. Healthy tight cuticles reflect shiny, silky hair while damaged cuticles reflect dull lifeless hair.