A black line on your nail (medically known as melanonychia) causes a streak of dark pigmentation that runs along the nail bed ...

Have you ever taken off your nail polish only to notice a dark line on the nail running vertically down your finger? These black lines on fingernails may look like bruising or internal coloring - not ...

Question: I have recently taken a break from years of getting acrylic nails done. When the acrylic was removed, I noticed a dark brown line under my thumbnail, running the full length of the nail ...

Because it only requires one to two coats to get the desired look, we imagine it'd last a while in your at-home nail kit. Why We Love It: Our favorite polish from this Black-woman founded line of ...