Another popular injectable is bovine collagen, which is intended to plump lips, or smooth wrinkles over larger areas by filling thinned collagen in the dermis. Trade names include Kybella and Juvederm, and results generally last between 3 and 6 months. As with Botox, reactions are generally site discomfort and pain. The collagen filler will dissolve over time, and require repeated application to maintain the desired result. Costs for these filler services vary significantly based on product cost, location, and body area to be filled.