Shop › Davines OI Shampoo 280ml Image 1 of 1 Davines OI Shampoo 280ml £24.25 Gentle daily shampoo for radiant, shiny, velvety-soft hair. Infused with nourishing roucou oil. Quantity: Add To Cart Added! Gentle daily shampoo for radiant, shiny, velvety-soft hair. Infused with nourishing roucou oil.