- Leaves hair silky and healthy looking
- Prevents damage from heat styling
- Humidity resistant formula
- Paraben free
- 100% Vegan
- Oil free
ion™ Humidity-Defying Serum helps smooth the hair, eliminate frizz, tame flyaways and add amazing shine. The oil-free formula seals the cuticle to help resist frizz causing moisture in the most humid climates, while also protecting the hair from heat-styling damage.