Sometimes the underside of the nails is a bit black. It is because they are dirty.
How to easily clean dirty nails?
It's true that it's not pretty and it can be full of bacteria.
Here is an effective grandmother's trick, based on hydrogen peroxide:
Contents
1. Brush your nails with a soft brush and soap.
2. Soak cotton swabs in hydrogen peroxide.
3. Pass the Cotton Swabs under each of your nails.
There you go, you have cleaned your black nails of dirt :-)
Easy, practical and effective! In less than a minute, your nails are perfectly clean.
Plus a trace of dirt and it cost you next to nothing. It's better like that, isn't it?