Thermo-active spray for texture & hold. L' Oréal Professionnel Tecni Art Constructor creates texture & shape whilst providing protection from heated styling tools. Style Tip: Don’t be afraid of overloading the hair; you can spray lots of L' Oréal Professionnel Tecni Art Constructor without making the hair feel heavy. Directions for use: Spray L' Oréal Professionnel Tecni Art Constructor on damp or dried hair, then work with fingers under the heat of the hair dryer to create texture.