Why does my shampoo have formaldehyde in it?

Now my friends is the time to worry.....
technically the holidays only began today seeing as the weekend doesn't count......
.......already chomped up sixteen hours playing Dragon Age.....
.......watched the entire first season of The Big Bang Theory.....
......had a serious conversation about shampoo with my reflection......
.......you think i'm kidding don't you?


.......oh dear