I've been using this product for about 2 years now and there are two things that I can share about my experience. I started using it one summer when I had gotten a lot of sun and my skin had darkened considerably on my cheeks. Kind of like all my freckles came together and formed one large dark spot. It was really bothering and made me look much older. I started using this product and 1. It did not make the spots disappear (which I wasn't really expecting but I think some do). But I gave it time because I really liked the serum and I did start to see a fading of the spots after probably 4 months of using it along with the origins moisturizer with the highest SPF. 2. The next summer with continued use of the serum, wearing sunscreen all the time and trying to be smart about how much exposure my face was getting to sun, I 100% found that my skin did not darken like it had the previous summer. It remained pretty much the same and now well into my 3rd summer I am still seeing consistent results. So, this serum, with daily sunscreen moisturizer and being smart about sun exposure on my face (ie wear a hat) worked really well for me!
41 years old, fair and freckles