Even when she’s busy touring the world, Hilary Duff always appears cheerful and well-rested — and her secret is a beauty hack that’s easy to copy. For her Madison Square Garden performances, the star turned to one must-have skincare staple to keep her looking bright and energized: Rodan + Fields Redefine Eye Cream. Celebrity makeup artist Kelsey Deenihan used the cream on Duff to deeply hydrate and soften the look of fine lines, creating the perfect canvas for long-lasting, flawless makeup. The undereye area can be finicky to treat, but this formula was made to address multiple signs of aging....