A few tricks can make Sharpie or permanent marker ink last longer on fabric. Although Sharpie marks are called "permanent ...

We report a vesicular reaction close to patch-test sites that had been previously marked with an Edding 3000 permanent marker. A 42-year-old housewife and teacher came to our allergy department ...

Investigate a variety of black ink markers, and find out why they look black ... Some of the brands you used may not have separated into colors at all. Certain “permanent” inks use colored inks ...