Thank you for your question and posting pictures. We have been very successful lightening the pigment in personal areas including areolas, bikini area, knees & elbows using the PicoSure laser with the FOCUS and / or Flat Lenses with a series of treatments. FOCUS lens treatments have the extra benefit of reducing any texture issues. PicoSure has almost no downtime. This is one of our go to treatments for patients older than 40 and worried about the signs of aging. This laser is safe for all skin types. We also send some hyperpigmentation patients home with prescription strength 4% Hydroquinone (HQ). Do not buy it over the counter or off the internet. Laws vary by state. In Texas, physicians can prescribe and dispense in office. Start with sunscreen every day! Once you have treated your hyperpigmentation to your satisfaction, you will probably need a follow treatment every 6 to 12 months depending your level of re-pigmentation. Best of luck.