What Causes Gray Hair

The pigments are produced in the hair papilla and deposited in the basal cells which are later converted into the spindle-like cortex cells and are moved upward with the growing hair shaft.

Gray hair is produced by a strong reduction of the pigment. The remaining pigment granula are irregularly distributed throughout the cortex.

New gray or white hair grows from follicles where dark hair has been shed, and in some cases dark hair grows out of follicles where formerly white or gray hair has been observed.

In ordinary graying, the process is gradual. Starting at the temples, the graying progresses slowly until complete gray or white hair develops.

Prolonged nutritional deficiencies affect the color of hair, but no proof has been obtained that feeding of specific vitamins will stop or retard graying under normal conditions.