Prepare to embark on a glamorous adventure through the luxurious world of Number 4, where innovation meets artistry and every strand is pampered to perfection. This session is essential for salon professionals eager to embrace the art of Number 4 products. Immerse yourself in an in-depth understanding of each exquisite formula. Indulge in the sophistication and joie de vivre of high performance hair care. It’s time to experience the crème de la crème of luxury!