This is performed 1 hair at a time with a fine wire filament (called a needle).  The needle is actually the same width as the hair, allowing it to slide into the follicle alongside the hair.  A current is then delivered to the root area which will cauterize the contact with the papilla (which nourishes and produces the root), causing it enough damage so it can no longer produce another hair. 

This is an ideal treatment for those who have blonde, grey, white or red hair that a laser cannot treat; those who have very few scattered hair; and eyebrows - which cannot be treated with laser (too close to the eye area). 

A new needle and needle cap is used each time, and safely disposed of after each visit.