Gently cleanse and soften hair with bumble and bumble hairdressers invisible oil shampoo perfect for dry brittle hair types the bumble and bumble hairdressers invisible oil sulphate free range offers products formulated with a special blend of 6 feather light oils proven to transform hair it makes strands smoother softer and silkier less prone to breakage and frizz all whilst remaining undetectable in hair the hairdressers invisible oil shampoo has a clean fresh smelling scent and