The colour of the hair depends on the presence of pigment granules in the cortex
of the hair. With age there is a gradual dilution of pigment in the hair, so that in different hairs the full range of colours from normal to white can be found.
Grey hair can some times appear earlier. Rapid graying of hair may occur after severe emotional stress
. In certain internal diseases hair might gray early. This is especially true of diseases of the thyroid
gland and certain types of anemia's. Localised patches of gray hair can appear in certain areas. Perming, colouring and bleaching work to promote graying.
The usual and the most effective way of dealing with graying of hair is dyeing it. There are several types of dyes available. The oxidative dyes are the most versatile and the most frequently used. But dyeing has its drawbacks- once you start dyeing it is seen to increase gray hairs. Henna is also used because apart from its safety, it is a superb conditioner. Having calcium pantothenate
in the dose of 200 mg dail