Introducing SIMIDADANG Hair-Line Powder 4g, the perfect solution for covering black roots instantly and naturally. This waterproof hairline shadow powder comes in 4 colors and is easy to apply, lasting for up to 3 years. Don't worry about damaging your hair - the delicate and soft powder won't harm your locks. Plus, it adds volume and fills in thinning hair. Say goodbye to root issues and hello to a flawless hairline!