One primary advantage of this procedure is that there is usually a zero possibility for an allergic reaction to occur. In the same way as a collagen injection, the results are temporarily but most of the time it lasts longer. Another type of lip injection is the artecoll injection. Artecoll is mainly composed of small synthetic beads that remain in the lips and cause them to raise. Between the first two types of lip injections, this is so far, the best because the results last longer.