It depends on what you're trying to fix. Usually with revisions, especially with noses, if you're going to operate on them it's got to be a pretty significant issue. The risk profile is much less with an injection and the results are as good if not better than a surgical procedure because you have much more control over small injections than you do with putting in cartilage This is not something you would ever do in a medi spa. You do this with someone who really knows how to inject. And there are certain materials to use. I only use Juvederm in the nose injection because God forbid if anything did happen I know I can get it out quickly. Other materials, silicone, Radiesse, if you do have an issue with them you can't get them out. grafts or things like that. When you put Juvederm in the lips or other areas that are very animate and move a lot that basically increases the metabolism of the product. If you put them in a rather inanimate area like a nose the product just sits there and it's not being constantly metabolized. I saw it in my own practice and when people came back in nine months they didn't need any further injections and I see the duration of the product last so much longer in the nose than in other areas that seems to be the only way to explain it.