L'Oreal Professionnel Tecni Art Constructor 150mlDescription How to Use LOral Professionnel TECNI. ART Constructor 150ml is a heat activated spray for texture and flexible hold for voluminous and wavy hairstyles. HAIRSTYLE: Textured, crimped or wavy with added body for fine hair Benefits: Adds texture Volume Heat protection No residue You can spray abundantly on dry to damp hair without weighing it down. Style or dry with a heat tool to set any shape.