Game of Thrones Major Plot Hole Unveiled

Joe, you didn't give us a spoiler warning, I thought I could trust you

He's right you know. What happens to the hair? There must be boxes of hair landing on beauty parlor floors every day. Where does it go? Perfectly good floor hair just getting up and walking out, gone forever, I don't think so. Where is the hair?

Joe, I know we can trust you, but isn't the real question what happened to your hair? What did you do with it?

and remember, N O H A T S

wow

Cersei Lannister is a Highborn.  Highborns have their hair nurtured EVERY DAY by a handmaiden.  On top of that, she was a Lannister (head of gold!!).  It was likely the purest hair in Westeros.