More than water. blk. Strawberry Rhubarb is a refreshing, sugar-free functional beverage made with Fulvic Fusion™, a blend of fulvic minerals, antioxidants, amino acids and electrolytes in a deliciously fruity flavor. You can support your healthy hydration habits with blk.; it's the fruity sweetness of strawberry and slightly tart rhubarb that makes this flavor a fan favorite without any added sugar or calories. Our range of wellness essentials are created to deliver full-spectrum, transformational health benefits to uniquely impact your performance. Take a blk. with you each day for on-the-go energy that keeps you hydrated. Replenish lost electrolytes and fuel your workouts. From speeding up recovery time, to supporting healthy skin, hair and nails, our functional beverages give you the convenience of incorporating powerful antioxidants and over 77+ trace minerals into your diet.