Dramatically reduces hair’s pH to gently soften curl effects and improve hair condition for soft, shiny results. Use this with any of the 3 NEW opti.effects perms for a looser/beachy wave pattern What else you need to know: New neutral pH technology reshapes hair without aggressively swelling the cuticle. For frizz-free curls or soft, flowing waves every timethe choice is yours. No post-process odor.