The Acidic Perfecting Concentrate LeaveIn Treatment is Redken's most concentrated allinone formula for ultimate repair and care of damaged hair. This super nourishing leavein provides ultimate repair, intense care, and protection against color fading. The treatment contains a concentrated bonding care complex and citric acid, which strengthens weakened sulfite bonds in the hair and minimizes hair breakage. In addition, the leavein treatment repairs the hair, provides heat protection up to 230°C, tames frizz, and gives maximum shine. The pHbalancing product has been specially formulated with an acidic pH to prevent the negative effects of hair dyes, styling tools, and even water.