Product Overview For luxurious shine & lustre, add ghd's Smooth & Finish Serum to straight styles for smoothness & to curls & waves for tamed definition. Disguise the appearance of split & dry ends & control flyaways for a gorgeous finish. Our stylists recommend use on dry hair to finish your style & on damp hair before blow-drying for beautiful smoothness. Benefits Perfect for high impact shine, this lightweight serum smooths split ends & helps hair to look beautifully sleek & defined.