Babyliss Curl Secret Optimum. Discover the latest addition to the Curl Secret Range: the Curl Secret Optimum. It has the Babyliss?patented Auto Curl technology that lets you quickly and effortlessly create beautiful curls. Unlike the other Curl Secret, the Curl Secret Optimum is more compact and has a narrower grip, also it is lighter and ensures better handling. It's LCD display allows precise temperature control for perfect curls.