a lightweight, invisible heat protecting and style extending spray that is clinically proven to protect hair against frizz humidity for 24 hours. all hair is welcome! made especially for those who want to protect locks against heat, frizz humidity. protects hair from heat styling- 450° f/ 230°c heat* to be exact. the shield also blocks strands from pesky, sticky humidity. contains uv filters - famous for its protecting benefits that can prevent damage caused by sun exposure. maintains frizz-free styles.