Packed with vegan, plant-derived silk extract, the IGK Antisocial Overnight Bond-Building Dry Hair Mask (£30) is an overnight hair treatment that promises to repair dry, damaged strands from the inside out. Coat your hair in the dry oil before you go to bed (no need to rinse it out), and you'll wake up with hair that feels soft, silky, and free of frizz. A sweet but citrusy scent of coconut, pineapples, and eucalyptus is a pleasant (and tropical!) bonus.