Tonsoliths: are usually white to light brown.
Answered 10/24/2014
3.6k views
Yes: They'll darken on exposure even to dry air after a few minutes. The black color is related to the high sulfur content; despite what you may have heard elsewhere, they're made primarily of sulfur-rich keratin imparting the nasty smell. A water-pick is underapprediated as a way to remove them.
Answered 3/31/2017
2.6k views
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question