This Kérastase serum isn’t greasy nor does it weigh down the hair so a few drops will add shine and preserve your strands. Why it’s great: A soothing scalp serum enriched with organic peony ...

Kerastase $44 at howl.link $44 at Amazon If you make one upgrade to your haircare routine, I always recommend it be a shampoo—it’s the one step no one skips. The first step this shampoo takes is ...