Color Wow Dream Cocktails turn blow-drying sessions into luxe treatments by infusing vital natural ingredients into the hair to help improve the overall quality of each strand. These nutrients are activated by heat, and improve the quality and texture of the hair throughout the blow-drying process. Kale Serum uses sulfur-rich sea kale to strengthen the hair's internal sulfur bonds. The result: hair is instantly 2 times stronger, with 50% less breakage after just 1 use. This leave-in treatment can be layered with other Dream Cocktail Serums to treat multiple hair concerns. Always use Kale Serum first, to penetrate the interior bonds.