Hair treatment system

A hair treatment apparatus, comprising:

• a flat substantially impermeable pliable sheet having a first face opposite a second face,
• said flat substantially impermeable pliable sheet having a width defined by a convex top edge and a concave bottom edge, said arcuate top edge and said arcuate bottom edge define a curved middle portion disposed between two descending portions terminating in a pia r of ends, said concave bottom edge at said pair of ends disposed a distance apart of about 4 inches to about 10 inches,
• said flat substantially impermeable pliable sheet having a thickness between said first face and said second face to allow said flat impermeable pliable sheet to conform to a scalp of a wearer along a hairline of said wearer,
• said second face of said flat substantially impermeable pliable sheet, when conformed to said scalp of said wearer, removably contacts said hairline of said wearer between said convex top edge and said concave bottom edge with said pair of ends correspondingly disposed uncoupled from one another on opposite sides of said wearer's head.