Restylane Bruises Still Not Healing After a Year

As the other panel members mentioned, you may be experiencing the Tyndall effect wherein the product placed too superficially creates a bluish hue under the skin. This may be remedied with Hyaluronidase injections to dissolve the product. However, be prepared to also lose any benefits that you may have received from the product as well.
Another possibility is that you may have experienced hemosiderin staining as a result of profound bruising to this area. We've seen this on a couple of occasions in response to injectable treatments. This may be addressed with class IV medical lasers.
Your best option is to be evaluated by a practitioner that may assess your condition and provide you with good feedback.

Dear Mgigi,
I have seen bruises at 8 weeks, but not much longer. This includes very extensive surgeries, not just with Restylane. Could you have a bruise this long out? A personal examination would be very helpful. However, even better would be to compare your before and after photos.
There are a number of things that can contribute to a darkening in the skin. Sometimes things that were actually present before a treatment are not attended to until after a treatment. In which case, it is the duty of your treating physician to point them out.
A severe bruise could result in hemosiderin staining but this is actually very unlikely. As Dr. Chen pointed out, if Restylane was injected too superficially, this can appear as blue deposits under the skin and might be interpreted as a bruise.
Consultation with a cosmetic dermatologist or a cosmetic eye plastic surgeon is recommended to determine what is going.
Hope that helps.

It is unlikely that you have persistent bruising from the restylane almost a year after injection. Although there have been reports of superficially injected product that lasts more than a year.  See your doctor.

Restylane is a very popular and effective hyaluronic acid-base dermal filler. It has been used widely throughout the face for the correction of deep lines and wrinkles. The trickiest area to inject in the face is the area under the eyes, because this area has very thin skin, which can make lumps obvious, and a high concentration of blood vessels, which can create long-term bruising. In our practice, we provide patients with ice packs to use immediately after their injection. If you continue to have some bruising in this area, it is possible that some of the skin may have been stained from the blood vessels that were traumatized during the injection. There is no straightforward way to correct this. Your best bet is to work with a board-certified plastic surgeon who has a great deal of experience in facial rejuvenation and skin care. So that they can review the options that may help correct this tricky problem.
 

You need to be evaluated in person to determine what the bruising appearance really is. If it is in fact a blood vessel, laser treatment or certain creams can help address the "dark circle" appearance. Alternatively, what you may be experiencing is the "tyndall effect." When Restylane is placed somewhat superficially under the skin, the light scattering effects of the material causes it to appear blue under the skin. It is uncommon, but not entirely unheard of for hyaluronic acid fillers to last over a year.
I would encourage you to seek evaluation by a board certified specialist in one of the aesthetic oriented specialties such as facial plastic surgery, dermatology or oculoplastic surgery.
Good luck.