IGK Antisocial Overnight Bond-Building Dry Hair Mask is a time-release overnight hair mask that is the first of its kind. Formulated with Bond-Building Technology, it helps to repair and protect the hair from the inside out. It bonds to the hair's natural proteins to strengthen from the core while Vegan Silk Proteins help to smooth the hair's cuticles and add shine. Leave this mask on overnight and visibly see hydrated, strengthened and frizz-free hair without needing to wash!