Yes Hi, my name is Shela, I purchased this 2 years ago, and only used for a week or so never got built up, I have chronic untreated lyme with many co infections, my mom fell and I had to be away . Then I had to move her back home and move in with her. In doing this with my health not good I forgot what things I was using ( severe brain fog and memory problems ) I believe I have symptoms of malaria, and it has become a chronic also.But i am on an anti malaria drug after being diagnosed with lupus. ( which i'm sure is a false diagnoses due to lyme and these others. I can not find the 50 % citric acid I have found the 3 % that I received in my original package. I just remembered that I had started using this when some one on a lyme group was discussing Jim's mms protocol. I may need to just purchase new products I not sure if it can ruin. But money is a little tight right now. Can someone tell me how to mix with lemon juice or the 3 % citric acid or can I use citric acid that can be purchased in the canning or pickling aisle at the grocery?Any help is much appreciated... Thanks