two-week color retention Intense brow and lash color lasts for up to two weeks with up to fifteen applications. You can save time on your daily eye makeup routine by getting 1-2 tints per month! When the tint is applied in accordance with the instructions, no unfavorable effects or skin irritation arise. Feel free to tint your lashes and brows whenever you want if you're 16 years old. The results will show up in just five minutes. Everything you need to easily tint your lashes with your eyes open is included in the tinting kit; no other tools are needed. Since one package can be used for about 15 applications, you can save money! Take advantage of your beautifully emphasized eyes every day by doing this simple tint treatment!