Only certain types of acne scars

There are different types of acne scars. Some appear as little pits and some are bound down with scar tissue. These depressions CANNOT be elevated by collagen or any other type of filler. The filler will simply disperse around the scar tissue.

The way to tell if collagen will work is by placing your fingers on either side of the acne scar and "stretching" out the acne scar. If the depression resolves that gives you an idea of what the collagen will do. This type of acne scarring, called "rolled scars" can be improve with filler. Collagen works very well here but one should realize that Zyderm, Zyplast or Cosmoderm, Cosmoplast do not last very long in the skin.