The basics Bumble and bumble Repair Blow Dry  is a heat-protective cream-based serum that heals dry and damaged hair for a healthy-looking blow dry. The benefits Rose of Jericho and Pale Lilac help bring dry, damaged hair back to life. The uses Working a small amount through damp hair prior to blow out, will protect the hair from breakage, heat and UV damage while repairing spit ends.  The bottom line With each blow out, dry or damaged hair looks and feels healthier.