Biolage HydraSource Holiday Duo Biolage HydraSource Shampoo 400ml BIOLAGE HydraSource Shampoo helps optimize moisture balance for healthy looking hair, providing optimal hair care. This paraben-free shampoo is a hair moisturizer that gently cleanses hair.This shampoo for dry hair gently cleanses as it quenches the hair. Biolage HydraSource Detangling Solution 400m l Inspired by the moisture-retaining properties of the aloe plant, BIOLAGE HydraSource Detangling Solution helps detangle dry hair and optimize moisture balance for healthy looking hair. This detangling solution instantly renews hair moisture as it detangles hair and controls static.