Belotero is another injectable hyaluronic acid used to improve moderate to severe lines on the face such as nasolabial folds, lines around the lips and mouth. Belotero is a quick and easy treatment that will provide immediate and noticeable results. No downtime is required as side effects are minimal. Belotero can last up to 6 months. As with all injectable fillers, the doctor or nurse will consult with you on the best injectable for your needs.