Whether you’re looking for defined curls, loose waves or straight strands, TRESemmé Keratin Smooth Heat Protect Spray will help you achieve a silky-smooth salon finish. TRESemmé Keratin Smooth Heat Protect Spray shields strands from the damaging effects of straightening and blow-drying up to 230°C while delivering up to 72 hours of frizz control.*Getting a smooth, frizz-controlled style doesn’t mean settling for limp locks or poker-straight hair that barely moves. Our heat-protectant spray is enriched with keratin proteins to help strengthen and smooth, while luxurious marula oil adds softness and shine. The result: hair that’s shiny, silky and protected from frizz..