Belotero®What is Belotero? Belotero is a hyaluronic acid based injectable filler that is used to smooth moderate to severe etched in lines and wrinkles, such as vertical lip lines above and around the lips. It is also used for filling in small depressions and fine lines on the face, and for lip augmentation in adults. How long does Belotero last? Belotero results can last up to 12 months or more, depending on the area treated and the individuals skin