Gabriella Mesquita preps model Nathália Felix’s hair. Clients save by turning to one of the many beauty salons in Rocinha. Photo: Marcos Ramos/Agência O Globo

Gabriella Mesquita preps model Nathália Felix’s hair. Clients save by turning to one of the many beauty salons in Rocinha. Photo: Marcos Ramos/Agência O Globo