Evian dreamed up a creative way to sell even more of its bottled mineral water: by repackaging and marketing it as a revitalizing spray for your face. A 5 oz. bottle of the mineral water mist sells for $10 on sephora.com, which touts the product as a way to rehydrate and invigorate tired skin. Other brands say their water sprays will moisturize skin and combat fatigue. But the pricey bottles probably aren't that much better for your skin than putting regular tap water in a spray bottle, or just washing your face, says New York-based dermatologist Dr. Jennifer Levine.