Living Proof No Frizz Leave-In Conditioner is a hydrating treatment that gives an extra boost of conditioning and frizz protection. Powered by Living Proof's patented Healthy Hair Molecule (OFPMA), No Frizz Leave-in Conditioner: Weightlessly blocks humidity. Smoothes hair texture so strands are polished and frictionless. Nourishes and conditions, leaving hair feeling moisturized.