Living Proof Perfect Hair Day Conditioner is a scientifically advanced, silicone-free hair conditioning treatment clinically proven to deliver multiple transformative haircare benefits with every wash. The innovative frizz-control technology deeply smooths the hair cuticle to provide exceptional humidity resistance and lasting frizz elimination throughout the day, even in challenging weather conditions. This nourishing conditioner improves hair cleanliness by preventing the buildup of styling residue, oils, and environmental pollutants that weigh hair down, so hair stays fresher and healthier for longer between washes. The result is dramatically transformed hair condition with improved softness, shine, and manageability for all hair types.