Doctor White twenty white serum ultimate multi-whitening

I have combination skin with persistent acne in the form of large, pus filled whiteheads, which leave dark scars. I also have those weird forehead bumps. I used the Doctor White line (facewash,...

It doesn't matter how many superlatives they throw in ("ultimate," and the "twenty" supposedly stands for twenty-times stronger), this serum doesn't work at all. Can't fade spots, can't brighten,...