Tweaking health regeneration through healratemult Actor Value

[Tang3rine]

I recently wanted to play Skyrim and wanted to remove the constant regenarating effect so I did some research on how the formulae works. I am trying to figure out the best way to modify healratemult Actor Value for my character from 100 to 0 in order to stop regeneration unless a potion or other effect is active. I would like to know what the best way to achieve this, other than a console command (Modav which I'm not sure if permanent.)

 

I found the only item that reduces this value is a necromancer's amulet which reduces it by 75, any help on how to apply this to the player character independantly is welcome, I'm not looking for anything sophisticated, my character will be a redguard and I tried adding a second effect (with TES5Edit) to the poison resistance racial ability but it didn't seem to work.