For added nourishment and long-lasting hydration, the Biolage Hydra Source Shampoo 400ml and Conditioner 236ml Duo helps to leave dry hair feeling soft, smooth and light. Set Contents: Biolage Hydra Source Shampoo 400ml A refreshing, aloe vera-infused shampoo that gently cleanses while providing weightless hydration for softer, silkier-feeling strands. Biolage Hydra Source Conditioning Balm 236ml A jelly-textured conditioner that envelops the hair in moisture, helping to enhance shine and softness.