The increased pigment is partially caused by thickened skin in those areas. Topical medicines with keratolytic properties such as weak acids can provide some benefit. An over the counter medicine called Amlactin is a good start.
Hi,thank you for the question.For dark underarms you can do peels like glycolic peel which will help in lightening the area.Avoid using hair removal cream for removing hair from this area as sometimes the cream can lead to allergic reactions and darkening of the area.Visit a board certified...
HQ 2% will decrease melanin production and stop the further development of pigmentation it also will allow for the pigment to resolve. HQ should help treat your knees but you should try to avoid trauma and sun exposure to the area. Only use the HQ as directed and no longer than 3 months at a time