Is it true that filler never goes away completely and that the only way to get rid of it is to dissolve it?

Hi and welcome to our forum!Most lip fillers are composed of hyaluronic acid, a natural substance in your body. The substance dissolves over a period of time ranging from 4-12 months, with most desiring replenishment after about 6 months. There may be a degree of residual fullness with repeated injections as the filler itself stimulates the formation of collagen. Hyaluronidase injections will dissolve residual hyaluronic acid but will have no effect on collagen.Migration problems are unusual and occur far more often with the use of lip implants.A skilled injector will provide the best care. Visit a board certified plastic surgeon for evaluation and discussion.Best wishes...