Living Proof STYLE / LAB Prime Style Extender Spray Styling Products. A 'primer' for your hair with unique results. Formulated with the powerful and patented by the 'Healthy Hair' molecule brand, which makes your hairstyle stay perfect for twice as long. This styling spray applies a system to your hair that transforms it to achieve a light and effective result. Being able to be used as a base for all types of hairstyles, it is perfect because it leaves the hair free, combable and totally manageable. Ideal for all types of hair, it is free of sulfates, silicones and oils. Suitable for hair with chemical treatments or with dyes.