I have a "friend" that is a "former" card doctor and from what I "hear" it is only a temporary fix. It will definitely reduce major creases. It will make minor wrinkles disappear but they always come back. Ever see a PSA card and go how did it get that grade with those minor creases, it did not have them when it was graded.
Like John posted sometimes PSA with catch it and give you a "A".
Now this is all just a rumor so please consider that.
