Sebastian Professional provides stylists with new products, tools & techniques, simplifying & solving the challenges hairdressers face every day. Sebastian is the inventor of the crimping iron, first semi-permanent, ammonia-free hair colour Cellophanes, first wet gel, as well as first combined hair care & styling Potion 9. Sebastian Professional was founded by LA stylist Geri Cusenza on the principle of fearlessness. A thirst for innovation & desire to change the game have always been Sebastian's raison d'etre. Sebastian inspires the artist inside every stylist with new techniques, providing new professional styling & hair care products for new-to-the-eye looks. Rejuvenate your hair with Dark Oil, a styling oil that increases hair volumes & smooths the cuticle. Blended with sandalwood, cedar wood & argan oils it protects the hair against UV damage & blends seamlessly into the hair. To use: Apply to dry or damp hair, working from the mid lengths to the ends.