Olaplex No 6 Bond Smoother and No 9 Bond Protector for Hair Travel/Sample Size OLAPLEX NO. 6 BOND SMOOTHER: When indoor heat makes hair more prone to dryness and flyaways, this leave-in treatment steps in. It smooths frizz and hydrates all hair types and helps define curls and waves in one easy step. OLAPLEX NO. 9 BOND PROTECTOR NOURISHING HAIR SERUM Why you’ll love it: High temps from blowdryers and flatirons can damage hair, causing a whole host of issues—frizz, flyaways, split ends, dullness—in the long run. This light serum is one heat protectant you’ll actually look forward to using because it helps make hair shinier while it works. One 20ml tube of each. Both sealed and brand new.