Our hair grows an average of 1.25 cm per month. Although most of the methods of hair extension are tried slower than normal, hair can not be too healthy if the hair is deep. Unhealthy hair tears off, so your hair may come to you as if it never stretched. Applying high heat, using hair stylers in an intense and excessive way, applying hair too often chemical treatments will cause hair to be damaged and therefore cause slow prolongation. The most important part we came up with! Unfortunately there is no shampoo to prolong the hair that allows hair to stretch very quickly, but there are nourishing shampoos that provide a healthy extension of the hair. The important thing is that your hair to grow up healthy without spillage, breakage, damage. If the hair does not stretch, it may grow damaged or fall off, or it may grow and loose.