I am 50 and have had some liver damage I have the occasional brown spot on my skin. They are permanent and I've not really worried about them. There's one on my hand and when I use the Firming Eye & Neck Serum, I pump out a bit onto my hand and then dab around my eyes and use the rest for the neck. The spot where i pump onto my hand just happens to be where i have one of those brown spots. I noticed how it was starting to fade and wondered could it have anything to do with the serum. I kept doing the same thing and the spot has now disappeared altogether. I have one on my face and I'm using a little serum to see what happens and it has definitely faded.