The Collagen Corporation claims that the technique of the injection makes a large difference in the result, but most users believe that the great variability in the results has a lot to do with the type of skin that it is injected into. The question of how long the bovine collagen lasts in human tissue is critical, as it is for all of the materials. First of all, about a third of the collagen solution that doctors buy is water, so already the volume is reduce. Immediately, you can expect that over the next few days that a third of the size of the lips with disappear, for instance. The next issue has to do with when there is still is a good effect from the material.
Some people feel that once the injection starts to wear off, then it is no longer good.
To others, the injection has lasted until they can see the slightest change from the way it looked before. The vast majority of my collagen patients are truly dissatisfied. Partly this is because they want one syringe of collagen to fill every wrinkle in their face. Frankly, I consider it rare to see a significant affect with liquid collagen after six or eight weeks in most mobile areas of the face. In non-mobile areas, such as the forehead or a scar, the material may last longer.