Can the sun's UV rays degrade the derma fillers injected in the face a long while ago? I went to the park on a hot day and spent three hours in the tree's shade. I applied SPF 50 cream, but I forgot to wear a hat. That night, I started to feel like my face was burning. I see the broken capillaries on my chin around the mouth and close to the nose. I don't know if I've been burned by UV rays, which may now affect the derma fillers. How bad can UV affect derma fillers?