Kérastase Chronologiste Blow-Dry Primer For Dull And Brittle Hair This Kérastase Chronologiste Blow-Dry Primer For Dull And Brittle Hair ($52) offers heat and humidity protection to hair before, during, and after styling, thanks to ingredients like hyaluronic acid and vitamin E. Image Source: Sephora Kérastase Chronologiste Blow-Dry Primer For Dull And Brittle Hair $52 from sephora.com Buy Now