Haha, what the hell by accident I just discovered that all of the results in the RCP study:
https://www.hilarispublisher.com/open-access/a-comparative-study-between-topical-5-minoxidil-and-topical-redensyl-capixyl-and-procapil-combination-in-men-with-androg.pdf
seems to be directly copied...
Yes I do all of this cycling between the treatments. And some of the stuff I only use occasionally. I know of a lot more treatments, but these are the ones I have had succes with. And I agree I also have inflammation and also believe that treating this is key to a succesful outcome.
I just saw your other thread, and can understand that you're desperate to fix it. I don't know much about hairsystems, but I don't think that using one would be good for your scalp and whatever regrowth you might be experiencing now. So I would probably try to combat the inflammation etc. before...
I would be careful with the use of coconut oil, especially if you have a condition like dandruff. The fatty acids in the coconut oil have lengths between 12 and 24 which makes them good food for the Malassezia fungus that is believed to be a pathogen behind true dandruff (seb derm)
Your hair looks very fine to me. I hope you can trust this and relax a little. It's a waste to ruin your life worrying about this now, without it being an actual problem.
With the neutral pH being 7 that means your water is actually very slightly acid. So it doesn't seem like you have a problem with calcium in your water.
I think it can maybe irritate the skin. The scalp needs to have a pH of 5-5.5 in order to fight bacteria etc. If you leave hard water with a pH of lets say > 8 on your scalp the water will evaporate leaving calcium residue behind, this will then get dissolved in whatever fluid reaches it first...