A big problem with cosmetic products is that they are usually not compatible with water and other moist conditions. This often means they are easy to wash off if they come into contact with water or even sweat. Of course, this is undesirable, after all, it means that all the time and effort you have put into improving your appearance will just go to waste.
However, unlike most other cosmetic products, this unisex hairline concealer is perfectly waterproof. This means that once you apply it, it will last as long as you need it. So you don't have to worry about it washing away when you sweat or rain. The powder is also suitable for filling in eyebrows.