Many OTC products: There are many over the counter bleaching agents such as hydroquinone (2%), licorice, kojic acid, manganese when combined with glycolic acid or retinol can help to lighten the black marks. Kojic acid, arbutin (found in bearberry and mulberry), azelaic acid, niacinamide are more natural remedies that are safer for the skin.
Answered 10/3/2016
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