Kiehl's Smoothing Oil-Infused Leave-In Concentrate is a booster treatment for dry or frizzy hair, formulated with precious oils to leave an unruly mane soft and smooth. Bring movement back to frizz-affected hair with this weightless finishing treatment. The softening, hydrating properties of argan and Brazilian babassu oils smooth the hair cuticles to tame flyaways whilst enveloping locks in a warm, woody aroma. Apply to damp locks before styling for hair that is manageable, free-flowing and healthier than ever.