Sebum-absorbing treatment shampoo for oily hair.use argeal in alternation with the sabal shampoo as often as needed and treat your hair to its rich, creamy texture. besides sabal serrulata it contains a soft clay (kaolin) which absorbs excess sebum, preventing it from moving onto the hair.directions for use use the tip of the nozzle to apply to a damp scalp spread by massaging gently. lather and leave on for 3 minutes. rinse reapply. rinse use as often as needed.