There are several different types of lip injections available, depending on the results you are looking to get from your lip filler. The most common type of lip filler is made from a hyaluronic acid solution and is available in several different formulations, all with different uses. Hyaluronic acid is naturally produced by the body, so the solution will naturally break down and absorb into the body over time without any negative side effects. It also means there are minimal risks with the injections. Other formulas of lip fillers include collagen and calcium hydroxylapatite. People interested in getting lip fillers should consult with a certified practitioner to find out the risks and benefits of lip fillers, as well as determine which type of filler would be the best solution for the look they want to achieve from their lip filler.