I might be missing what you’re seeing because the way I see it there’s only one component of the Mythic album that I would call “purifying” (although I prefer the “detoxifying” that’s used in the description). That’s the Detoxed Plasmatron Life, which is focused on detoxifying your mitochrondia.
Aside from the fact that, at this time, you’re not able to purchase PP, what do you see about PP that’s “purifying”? It’s a series of physical healing fields.
I’d look at BoL.