The Haskell Post-Progressive treatment line was developed with the most powerful mix of oils: ojon is a powerful active ingredient, rich in amino acids and antioxidants, and is the only component that in its natural state has the same composition as hair keratin. The Myrrh + Calamus + Cinnamon oils have an emollient and lubricating action and adhere to the hair strands, providing a disciplining and hydrating effect. The perfect combination to prolong the smooth appearance of hair. It has a pH of 5.5. Salt-free.