Mine are still a dark brown-olive color with some white near the bottom center. I am going to send one in today and see what the lab says. I wish I had sent my first one but this will be the last pad of the first box ... I still can't believe that the lab only charges $15 an analysis - I used to work for an analytical lab and those particular pollutants would be more in the range of $100's! I will let you know what the results are.
I can't say that I have had vivid dreams while using the pads but I have been really itchy! During the day, the bottom of my foot (bordering the area where the pad was) and a spot on my middle, on the right side just above my waist have been itching like mad! Bizzare.