Copper jewelry often worn so that the fingers leave a blue -green imprint. The reporter tested whether the nail polish works to prevent coloring.
Are your fingers sometimes colored blue -green after using the rings?
It is probably a copper that can be found especially in cheap jewelry. Copper causes a staining of the fingers.
You can try to prevent the color from sticking to your fingers by, among other things, the rings off before bathing, washing or swimming.
Another tip is to apply transparent nail polish to the ring.
Iltalehti tested the nail polish tip with a copper ring. Watch the video to see if a tip works.