BeautyLash is based on silver nitrate, which leads to staining of the skin when getting in contact with it. Stains might not be visible immediately, but only after exposure to light. Use the BeautyLash Tint remover as a precaution directly after skin contact to avoid stains. When staining has already appeared dampen a cotton wool bud with the BeautyLash Tint remover and softly rub the affected areas to quickly remove the discolouration. Within 2-3 days the discolouration disappears by itself.