I came across a product called Placenta Soap. It claims to have active "skin whitening" properties. I am of African descent and currently trying to lighten hyperpigmentation on my chin area from acne. Has anyone had any experience with this type of soap? I am currently using Papaya Soap, which is a great exfoliator, hydroquinone 4% and spf 30 sunblock. Any insight is greatly appreciated. Thanks!