If you have time and the inclination I would appreciate and educated opinion on...
There is a book on that claims, blue light (cover and lage whitening), water cleaning and peroxide (if u rebalance the PH) cleaning can all be done with blue label. These methods supposedly remove foxing, and sundhadows.
Is the book a troll or is the information correct? I can send a link to the book in question if needed.
If water cleaning is okay I'd imagine peroxide is too, just because it breaks down to....
I just can't imagine I see all of this foxing and sunshadows but there is a solution.
That said I'm ignorant, so WTF do I know