DRYBAR Liquid Glass Miracle Soothing Sealant - Protects Hair Against Heat Damage and Offers Frizz Control . DESCRIPTION Heat-activated technology wraps an invisible shield around each hair strand to provide frizz resistance. Leaves a super-glossy, silky finish without weighing hair down. BENEFITS Lasts through 3 washes. Protects from heat (up to 450°F/232°C). SUGGESTED USE Spray from roots to ends on clean, damp hair. To activate formula, blow-dry thoroughly and finish with a hot tool.