If you've ever envied Amal Clooney's thick, bouncy hair, you'll want to take notes on the hair care brand she reportedly uses to keep her strands full and healthy. Spoiler alert: It's Garnier Fructis, and the drugstore brand's shampoo is currently on sale for just $8. The Garnier Fructis Hair Filler Strength Repair Shampoo is making waves for its ability to strengthen and visibly plump hair that feels thin or brittle - all without a hefty salon price tag.