Deep color changes may appear blue or gray, though a spot may also be ... Melasma is a skin condition that leads to small patches of skin discoloration. The condition is more common in females ...

And in brown and black skin, the discoloration may appear as a darker gray or slate-blue hue, effectively creating an inadvertent tattoo. A similar phenomenon, albeit rarer, is chrysiasis ...

Perioral, or circumoral, cyanosis is blue-grey discoloration around the ... around the lips and tongue may appear gray or ...

Dark foundations on the market often fall flat, appearing gray-like once applied on the skin. But now, researchers report a blue cosmetic color additive that gives these foundations the warmth and ...