Just wanted to say, and I can hardly believe this myself, but the MSM and Vitamin C tablets really seem to be helping to fade the dark spots on my face. They are less noticeable now, I think. DH even thought I had my makeup on this morning when I hadn't put it on yet!
I've been taking 3 x 1000 mg of MSM (its actually intended to lubricate connective tissue, especially joints) and 2 x 1000 mg of Vitamin C with Rosehips, as this is supposed to help your body absorb it, I think. Both of those dosages are the recommended dosages on the bottles and should be safe. Anyway, they really do seem to be gradually lightening the dark patches on my face, and I've only been taking them for 2 weeks or so. (I also have been using Metrogel for about the same amount of time, but that doesn't lighten dark spots as far as I know, it just decreases redness, but I am sure that has helped even my tone a bit, too, to be fair.)