Product Overview Perfect for use on colour treated hair the Paul Mitchell Shampoo One 300ml has a gentle formula which cleanses your hair leaving it full of body with added shine. Benefits Get shiny, healthy hair that looks & feels great with regular use of the Paul Mitchell Shampoo One. The panthenol & wheat derived conditioners within the shampoo work to smooth your hairs surface which makes it more manageable & the algae, rosemary, aloe & jojoba help to leave your hair with a beautiful, eye catching shine.