Eyebrow Dye Kit: Our eyebrow tinting kit is specially formulated with high-quality and non-irritating ingredients, which will not harm the eyebrow and surrounding skin. Please take a skin test before first using. Natural Looking: The kit is waterproof and sweatproof. Formulated with natural non-irritating coloring ingredients, safe and effective. Natural shaped lashes and eyebrows will be visible instantly. Long Lasting Eyebrow Color: Our eyebrow color lasts 4-6 weeks, with one application and will not fall off due to sweat or rain, saving you time on your daily makeup. The developer gel that has the ability to penetrate the hair shaft, meaning your newly coloured brows will remain looking fabulous for up to 4-6 weeks. Easy to Use: Eyebrow Dye Kit contains the coloring tools you need, you can achieve statement brows to be proud of. Just mix two bottles of eyebrow cream with 1:1 rati, use the brush to stick the eyebrow cream, and wait for around 5-10 minutes, you will get a perfect brow.