Darkening after bruise from Juvederm
What has happened is that blood is now mixed with the filler. The body can't get rid of it well because blood vessels don't grow into the filler. It might have to be dissolved so the body can remove the old blood as it usually would.
it could be Tyndall affect. which is not that hard to reverse. I would recommend to contact your doctor and have the enzyme injected to dissolve the filler. Tyndall affect happens when there is either too much filler placed under the skin or if its placed too superficially or a combination of both.
Unhappy Results With Fillers, Reverse with Hyaluronidase
If you are unhappy you can revese the fillers with hyaluronidase. I would try pulsed dye laser or yellow laser treatment or a picosecond laser as well to improve the "bruised" apperance as this may be some blood in the skin. Best, Dr. Emer.
Tyndall effect causing bruise like appearance after Juvederm
This isn't Tyndall effect. Some Q switched lasers will destroy this blood pigment deposition.
It is very difficult to tell from the photo if that is the Tyndall effect or bruising. I would definitely wait a week or more to evaluate the situation. Please return to your treating physician to have your lips evaluated for possible Vitrase. Best, Dr. Green
It is very hard to see in the photo posted. An exam in person would be essential to determine what if anything can be done at this point.