Summer’s treatment on consumers’ hair has been unforgivable. Frizz from excessive heat, chlorine from long swims in the pool and salty ocean air has made hair unmanageable, dry and susceptible to damage.    To help restore dull hair to its natural shine for a fall-ready look, R+Co is introducing Zipper Multitasking Styling Lotion ($32) to fight frizz and add intense shine, and Sunset Boulevard Blonde Toning Styling Crème ($32) to help eliminate brassiness in blondes while working to hydr...