“It is also true that his hair had a reddish tinge and, as everybody knows, no one with red hair can ever truly be said to be handsome.”

“His face was gaunt, scraped and bloody, his hair dusted with cobwebs, but when he locked eyes with her, she thought he had never looked more handsome.

Percy & Annabeth”

“red hair is caused by sugar and lust.”

“He'll carry me off, I know that he will,
For his hair is exceedingly red;
And the only thing that occurs to me
Is to dutifully shiver in bed.”

“Red hair, sir, in my opinion, is dangerous.”

“Red hair is great. It's rare, and therefore superior.”

“The proprietor had hair so red that pigmentation had flowed out into every visible inch of his skin and even into the pinks of his eyes, as the colour of flowering cherry trees stains their leaves.”

“True is the proverb, one's hair will change before one's habits.”

“Even the trip throught the Portal had not disarranged Magnus's hair spikes. He tugged on one proudly. "Check it out", he said to Isabelle.
"Magic?"
"Hair gel. $3.99 at Ricky's.”

“And in that one grey hair I saw my whole life and I said "I think I need a hair.”