The number of follicular units needed will depend on your hair density, expectations and the exact size of the balding area you want grafted. The area, of course, will depend on the precise location of your new hairline. I would estimate that a minimum of 3000 grafts would be needed to achieve a reasonable frontal hairline, however, that number could be larger if you desire a slightly lower hairline or if you desire grafting in the area of hair loss in the crown region. I generally prefer for most young men...