Our habit of highlighting and blowdry-bar-hopping is not without consequences—namely dullness, perma-frizz at the temples, and Brillo-textured ends. Now, mane man Frédéric Fekkai has the fix: Fekkai PrX Reparatives Mending Elixir, a velvety serum with cuticle-smoothing argan oil and a truly addictive sandalwood and vanilla scent. It left us looking as if we had virgin hair, which is as rare as a unicorn in beauty editor circles.

FEKKAI PrX Reparatives Mending Elixir, $25.

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