Hi I've just started using red light therapy and after the 4th treatment noticed hyperpigmentation on my face. Whether it's old hyperpigmentaion resurfacing or new caused by the red light I don't know. I haven't had visible hyperpigmentation for years due to sunscreen and keeping out of the sun.I am confused about the red light / angel light as it claims to be good for pigmentation. For those of you who experienced it getting worse - did it disappear again? And if so, after how many treatments? I have heard the view that it can be old melanin surfacing to be shed off. I would love to hear feedback from those of you who have any experience with pigmentation and red light.... :o) For now I'm keeping out of the red light.