Black spots and Black soap

My mixture of black soap contains Shea butter except where a client specifically stated he/ she does not want it . Black soap gradually fades dark spots over time .This is more notion a lot of people have come to argue about ,a lot Said they don't get result ,I understand our body texture varies but with great determination and patient one will achieve beautiful skin with black soap. The problem with most New users is that they hardly keep at it after a while of using it and they there is no visible result to  show  for it. Which I believe discourages them. But I tell you if only you can be patient while using black soap you will get a visible result with time.