Swatched on some strands but didn’t use this product because my hair was too dark. This product is a tint and works best on light blonde hair. Make all your fantasy color dreams come true with Lime Crime Unicorn Hair Tints, a DIY-friendly, damage-free hair color. Cloud will deposit a light wash of periwinkle blue, adding a kick of cool to your hair. Hair Tints are not recommended for dark hair.