Lets Jam Heat Styles Curling Spray. Lock in unlimited curls that last 3x longer even in the most humid conditions for soft, touchable curls with body that defy stiffness, dryness and breakage, Exclusive style definers and thermal protectants work with heat to define and hold your style while locking out heat damage - up to 400??. IT Spray evenly on clean dry hair and apply curling, ceramic or flat iron one section at a time then style as desired then use slim curling iron to create spiral curls. Finger loosely for unlimited volume and body.