We all know blood is red. But not all red blood is created equal. The exact shade of your blood can actually tell you a lot about what’s happening inside your body. And while you might not spend much ...

The Ruby is known as the king of gemstones because of its deep red colour, rarity, high economic value, and strong historical ...

Theresa Larkin does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

The "black ruby" hair color is emerging as one of the major red trends of the season, in a deep, dark, and ultra-glossy version. What is "black ruby"? Ruby Noir is a deep, highly saturated red mixed ...