What happens to fillers as they wear off? Do they turn to scar tissue like Alloderm?

As we age, our fibroblasts, the cells that make the structural proteins af the skin that provide its strength, elasticity, thickness, and tension, which normally look like an octopus with all of its tentacles outstretched, actually roll up into a ball.  When fillers are injected, the fibroblasts are stretched and their "arms" are outstretched once again. This has the marvelous effect of increasing the production of all those wonderful proteins.  And the more they are stretched (by fillers), the more proteins they produce.So, there is this wonderful side benefit of improving the surface tone, texture, and wrinkles by filler treatments. And, some of that increased protein will be left behind even after the filler is completely degraded.  So you will always be better off even if you don't repeat the treatment.In this process, scar tissue is not formed.All the best!  Dr. Clark

When the fillers dissolve the skin should be about the same.  As we age the quality of the skin goes down and leads to flaccidity.

Filler dissipates over time.  Crepey skin is the result of aging, particularly with thin skin, not plastic surgery. However, patients with that skin type, particularly in the geriatric population, must be warned as to less than optimal results.  See a board certified plastic surgeon who can discuss fillers of various types with you.

Fillers dissolve over time.  They do not leave tissue crepey skin.  This is most likely the result of loss of collagen and elastin in skin.