My great aunt Lola (yes, really) used to get the ol' blue rinse on her perfectly white hair. You just don't see much of that kind of thing anymore. Raise your hand if you think the model for item F is the owner's daughter?
blue rinse on white hair counteracts the yellow buildup from old pipes, poor water (like from well water rather than city water), or hard water.

my granny used the blue rinse on her hair, too. and on white fabrics in the washing machine. its an optical illusion that things are whiter than they are!
There was a blue-tint shampoo that my mom used to use on the showdogs (Springers) to kill any yellow cast and make the white fur whiter. Strangely enough, it worked REALLY well on blonde hair, too. It didn't leave the hair BLUE, but it killed the brassy tones in my sunbleached spots and made it a really nice ash blonde. I kinda miss that stuff...
Girl F looks so natural, doesn't she? You'd never suspect she's as bald as a boiled egg under that rug!
wow, 100% fried human hair! those are some nasty looking fibers...i'll stick with my kanekalon, thanks
A too-hasty glance at the faces and the swatches had me believing for a moment that this was an ad for some type of eyebrow wig.