I have just started using secret key premium snow white milky pack and I have seen some lightening in only 4-5 days which is nice.First off I would like to say I have white skin with a yellow tint but when it comes to my face I have very red cheekschin and forehead. after 4 -5 days of using this the redness in my face is not so bad and I'm quite happy with that. But I have also found that to get it really white I need it to leave it on for longer then 2-3 mins and find with me thus far I can leave it on for 10+ mins (I do not suggest you do this based on my own personal choice). But there is a down side to this and I find this really oily and there is no way u can wash this pack off with out using soap which I have to do because it is way to oily for my liking. I even have to scrub my hands to get it off. Other then it being really oily and having to wash my face again after this is a good product it has lightened the redness in my face.