What is this grey dark line on my face? I've had Restylane Refine placed in my marionette lines. (Photos)

Thank you for posting the photos. However, it is still very hard to determine exactly what the line is due to. I agree with the RN stating that its either a vein or filler. If it is filler, it may be causing a blueish hue called the Tyndall affect. With that said, this usually happens with thicker fillers or if the filler has been injected very superficially. A device that we have at our facility called accuvein, can show the veins under the skin and that is one way to determine if it is just a vein that has been pushed to the surface, or it truly is filler.
Thank you, Melody

I can't fully appreciate your gray line but this is most likely a Tyndal effect from the filler. This can be remedied with hyaluronidase. I still see marionette lines and these can often be corrected with placement of filler in the preauricular area and along/beneath the jawline. I'm a huge fan of using Refyne/Defyne in the perioral oral and it is great for this area. However, you must not over fill the marionette area because it gives a wide and abnormal looking lower face.