KMS California Colorvitality Colour Duo (2 Products) Protect & restore colour treated hair with this colour enhancing KMS California Colorvitality Duo. Formulated with rhubarb, lavender & IOPS technology, hair is intensely conditioned & left with enhanced vibrancy & shine. This pack contains the following products: KMS California Colorvitality Shampoo – 300ml KMS California Colorvitality Conditioner – 250ml