I have a becker's nevus birthmark on my chest. I'm not even thinking about laser surgery. I have been searching on youtube and about natural remedies such and Braggs apple cider vinegar mixed with onion juice and how it could possible lighten or completely get rid of hyper-pigmentation. I've heard that method working for older people with dark aged spots in the face and not quite sure if it would work on my birthmark. I'm also thinking about TCA peel or Retin-A cream but only as a last resort.