There are literally thousands of potions and preparations designed to aid us in the pursuit of beauty and acceptance. Most of them exist to make us feel better and, while they don't deliver total and instant youth, they're pretty harmless. But a handful of these cosmetics are dangerous and can do permanent damage - take skin whiteners, for instance.
Expert: Firstly, I won't recommend trying anything like this without consulting a dermatologist first.
I'm not aware of any such tablets in SA registered for this use, but some products are available on the internet. Pallid Complexion Tablets are formulated using naturally derived active ingredients, known to inhibit tyrosinase production within the skin. By reducing tyrosinase activity, melanocyte activity is also reduced. Melanocytes are responsible for creating melanin, which gives skin its dark color.
Other remedies include taking L-glutathione and vitamin C in high doses. Supposedly the Vit C dose is taken at double the dose of glutatione three times a day before meals.