I don't use this for skin brightening but for my acne scars! And it helps! They're not gone yet but it really helps my red pimple scars to fade a little! I do see that my skin also gets a little brighter while using this for a longer time but I don't mind because I'm very pale in general and you don't really see a difference.
It's good! Although I dont see the whitening part yet but it does brighten my complexion a little.