It's not what you think it is. What if.. ...it was a gel at touch but a hair oil in performance. ...it was caring- but a styling aid. Amplifying shine and doubling the smoothness* for up to 48 hours while providing body and control. ...the oil disappeared into the hair in seconds- thanks to the new DiffusX Technology- leaving no trace behind- just a wonderful- long-lasting effect. What if it was dark- but light? Sebastian dark oil an evanescent styling oil that replenishes from the inside out to smoothen the cuticle and add body- then disappears from hair. Formulated with sandalwood- cedarwood and argan oil. Protects hair against UV damage. *vs. untreated hair. How To Use: Apply 1-2 pumps to dry or damp hair- through mid-lengths and ends- and style.