To keep her curls shiny and healthy 35 years of Calvin and Hobbes 1985 2020 shirt . Cosima uses Charlotte Mensah Manketti Hair Oil and Manketti Oil Conditioner. “It makes my hair so easy to comb through.” She lets it dry in four braids for maximum definition, and takes them down when she’s ready to hit the London streets. “I’m always late so I rarely have time to use makeup,” she says, “so a simple skincare routine is needed.”