L'ange Glass Hair Thermal Blowout Primer Glass Hair Thermal Blowout Primer  Thermal Protection  Frizz Management  Shine  Extension Safe Activated by the heat of your dryer, this blowout primer helps to smooth out rough, dry, frizz-prone hair. Apply to damp hair before styling to create a weightless, humidity-resistant barrier that leaves strands soft and sleek, with a long lasting, mirror-like finish.  Free of: sulfates and parabens Benefits:  Reduces frizz and flyaways Heat-activated  Antioxidant-rich formula Boost smoothness & shine Helps lock-out humidity Long-lasting style primer