If you've been researching lip treatments in Korea, you've probably come across two names: lip flip and lip filler. They're often mentioned together, yet they work in entirely different ways and produce quite different results. Neither is universally "better." The right choice depends on what you're actually trying to address, and for many patients, the answer turns out to be both. Here's what you need to know. What Is a Lip Flip? A lip flip (also called lip corner botox) use