What it is:Step 3 (Style/Create) styling aid in ghd's 4-step thermodynamics(TM) system: A heat-activated, flexible-hold, aerosol mousse with UVA protection - for all hair types.What it is formulated to do:Adds volume as it defines curls and adds shine. UVA protection helps retain hair's moisture and elasticity when heat-styling. Macro-globules are released onto the hair to help repair, protect the cuticle, and create added flexibility and elasticity. Helps to repair the hair, prevent color-fade, and imparts long-lasting shine and condition, while controlling static.