The Dadi'Oil (£10) is one of my top three favourite cuticle oils ever (and no, it's not because of the name). It's also a favourite of London-based manicurist Kate Williamson. "It's the original 'every nail tech has in their kit' oil," Williamson said. The reason? It contains a whopping 21 essential oils. "It smells delicious and is super hydrating for thirsty cuticles screaming for some TLC," Williamson added.