Davines is another B Corporation beauty brand, where sustainability is at its heart. The brand uses renewable and eco-sustainable sources only, manufacturing is done in compliance with eco-ethical standards, and Davines offices and manufacturing facilities are carbon neutral. If you want to gift a hair care routine that truly cares for the planet as much as it'll care for your hair, the Davines What a Nourishing Dream Gift Set (£40, available in Oct. at Liberty London) — which contains the Nounou Shampoo, Nounou Conditioner, and OI All In One Milk — is perfect.