If you ask Us, Nicole Kidman deserves just as much attention for her gorgeous hair as she does for her incredible on-screen roles. If you've ever wondered what's behind the star's healthy shine and fullness, it turns out the secret is surprisingly accessible: Vegamour's Gro Revitalizing Shampoo. According to InStyle, Kidman once called this Vegamour shampoo her "favorite," and we can see why! It's formulated with plant-based ingredients like wild-harvested marula oil to cleanse, nourish, strengthen and support visibly fuller hair.