You've likely heard of RBF (Resting B**** Face)-- and people are increasingly tired of having the "condition." People with RBF usually have a relaxed facial expression that looks like a frown, or even angry. Now Dr. Daria Hamrah, a Virginia-based plastic surgeon, says she's seen an influx of people seeking ways to soften their RBF. She says she gives these folks a semi-permanent filler procedure that started as a Korean Beauty trend, but is now very common among American patients. A typical treatment will run you about $700 to $800, and will last 12 to 28 months.