Is your hair colour leaving your locks vulnerable to humidity and frizz? Colour Wow’s Dream Coat uses an exclusive technology that covers each strand with an invisible waterproof veil. A favourite of celebrity hair stylist Chris Appleton (whose A-list clients include Kim Kardashian and Ariana Grande), it uses a heat-activated polymer to tighten and seal hair strands so you’re left with super sleek, smooth and silky locks, which lasts for up to four shampoos.