Living Proof FRIZZ Leave-In Conditioner Styling Products. A leave-in conditioner that features the powerful and patented molecule brand 'Healthy Hair' which is one of the biggest advancements today that fights thin, frizzy hair with a tendency to frizz. With 30 years of experience behind this new technology, it blocks humidity up to 70% better than silicones and oils. It also keeps hair silky and tangle-free for much longer, preventing you from washing your hair continuously, which damages it. Perfect for all types of hair, it is free of sultaphs, oils and silicones. Also suitable for hair with chemical treatments or with dyes.