L’Oreal Paris Elnett Hair Spray ($7)
“Elnett is the go-to,” Mirren told us. “Every hairdresser that has ever had my hair go through their hands has used it. The smell of it has been with me for, I think, my whole life. I always say to hairdressers, ‘Elnett, really?’ And they all say, ‘Yes, it’s the best.’ Of all of the amazing products that have come out since it launched, I don’t know how long ago, it has been the consistent one.”
