“Worth Knowing” is a selection of folk knowledge, passed along by the fine folks at American Chemical. Like most folk knowledge that does not have to do with animal husbandry or agriculture, it’s mostly nonsense. You cannot remove melanin from lower layers of skin by scrubbing your face with Epsom Salts. Unless you use a wire brush and go down to the bone, of course.

The “Found at Fountains” line refers to Celery Fo-Mo; every page has some sort of zippy slogan at the bottom.