What it is:Step 1 (Cleanse/Nourish) shampoo in ghd's 4-step thermodynamics(TM) system: A daily shampoo with UVA protection for normal to fine hair in need of extra volume and body.What it is formulated to do:A blend of surfactants cleanse, volumize, and improve hair's softness and manageability while a silicone-based conditioning agent improves body and volume by selectively attaching itself to damaged areas, adding condition, flexibility, and volume. Overall, hair becomes more manageable, easier to comb, and less affected by static.