You cannot expect “lab reports” of skin whitening creams to be published online when most of the testing is done by customs or scant government organisations. It’s a hodgepodge of randomized testing here and there, with no centralized global authority. There are literally millions of products being tested (and millions not being tested at all because of limited resources) and I highly doubt skin whitening creams are the only priority of regulatory bodies around the world. A big part of the world’s population do not use skin lightening creams at all.
Just wanted to let you know I have DEFINITELY seen a remarkable improvement in my hyperpigmentation . I had large dark areas on both sides of my face and my chin ( laser hair removal treatment gone wrong!! ). Someone once said to me they looked liked burn marks . I used to be so embarrassed by them, after spending hundreds of pounds on useless cosmestics I had sort of given up and decided I would have to live with the marks. Today I have a lovely even complexion (there is just a hint of darkness left on my cheeks but I am confident they will be gone soon).