STACEY BENDET’S HAIR LINE: Alice + Olivia’s expansion isn’t only in retail. The brand is dabbling in hair care with a limited-edition gift set in collaboration with P&G-owned Sebastian Professional. Launching next month, the gift set includes a scarf designed by Stacey Bendet, and Sebastian’s signature Drench Shampoo and Conditioner. The gift set also features styling instructions from hairstylist Thomas Dunkin incorporating the scarf into hairdos. It will be sold for $25 at salons and select beauty retailers. Before the gift set, Sebastian and Alice + Olivia struck a partnership that has involved campaign shoots, in-store events and hairstyling for three seasons of New York Fashion Week.