MMS2 tablets( not capsules)

I don't think it's the same product because they say it's made from Sodium Dichloroisocyanurate (NaDCC). It also seems to be some kind of sustained release formula. Calcium Hypochlorite is the only MMS2 I know of.

Chlorine Dioxide and MMS are the same. MMS is just another name for it that Jim Humble used to call it 'Miracle Mineral Solution' Just note that chlorine dioxide is what sodium chlorite becomes once activated with an acid.

NAC is great, I also supplement with it every night. It is known to improve the gut lining so maybe that's why you noticed improved digestion. it also offers great protection against COVID too.