“For the money i paid....not worth it!”

I had the mask about a month ago at a clinic and have been following instruction with C2 and Factor K delligently since then. I see very little result if any at all on lightening my brown patches. I am quite disappointed but I was told I will get another 2 to 3 mask treatments out of the remaining C1 and the condition should improve with those additional treatments. I wonder if anyone has similar experience and eventually get better result from it.