Nº.9 Bond Protector Nourishing Hair Serum 20mL

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.

How you’ll use it: Smooth it over damp, towel-dried hair, from the mid-lengths to the ends, then run what’s left on your fingers over roots.