Lash tinting is a method where dye is brushed directly onto eyelashes to darken them. If you have naturally light or blonde lashes, you’ll definitely see the most dramatic difference with a tint. Lash tints are a happy medium between mascara and falsies, giving you a wide-eyed, long-lashed look. The duration of the procedure is 15 min. The results last up to 4 weeks. Note: The results will last longer if you avoid oil based cleansers.