products to reduce sun spots/freckles?

I've tried Lancome, Caudalie, and Shiseido serums/kits and none of them have significantly reduced the sun spots on my face. I wear sunscreen everyday, and I exfoliate at least 2x/week so that's helped to prevent the spots from getting bigger....

I've been looking at the brightening kits they have at Sephora, but it would be awesome to get some feedback on products that have worked for MVers.

My skin type:
- combination (oily t-zone, dry around cheeks/mouth)
- sensitive

What do you recommend?

Unfortunately, I don't have anything that has worked for me either so I can't give any recommendations..
BUT I can say the La Roche Posay Mela-D serum & the Lancome (blue long tube) does nothing. :/

I heard that greek yogurt is supposed to reduce sun spots as well. I did try it but only a few times so the only benefit I saw was that it made my face super smooth and clear, but did nothing to my age/sun spots. Maybe it will work if you use it for a longer period of time. Good luck!