Don't know. It's new to me, LOL. I must have missed Mark's video. - nope, just went and looked. This was the chagas video - I did see it - it's an excellent video. Just didn't translate the CDS+ for chagas over to other areas. My bad.
Today I took all my CDS in my fridge. It's been a while since I've done any CDS, because I've been back on MMS - I would guess it's been since spring - so 6 months at least. My original CDS was 6k, about 12 oz, and I had about 2 oz of the 12500, which I've used over time for things like burns and skin problems .
I put them all together into a glass measuring cup, stirred with a plastic spoon. Then I measured 19mL of distilled water into a graduated cylinder, and added 1mL of the CDS. It came out to 250, which means I still have, even over the 6 months, a viable CDS of 5000ppm. So, I poured it all in the glass amber bottles (I keep mine in 4oz bottles, and have a 2oz working bottle. The 2 oz bottle gets opened to do my dosing, and the 4oz bottles are for storage.
I didn't know what to expect when I started my testing. So, my experience has been - since I've neither frozen nor have I use mms1 in the CDS - there is weakening of the CDS over time. Which we all knew. This CDS is perfectly fine to use, and I will be using it - but adjusting the mL of the dose to compensate for the 5000ppm vs 6000ppm. BUT - CDS lasts a lot longer than I would have thought, will be honest. Yes, it weakened, but it was still viable - soooo, if you have CDS in the fridge and testing strips, I would recommend testing to see what you actually have. You can always adjust the amount of the CDS that you take to compensate for the ppms.