Kylie Jenner decided to drastically change her look for the day, tweaking both her hair color and eye color. The youngest Kardashian-Jenner sister uploaded photos to her Instagram Story of herself ...

Light may have driven our ancestors to walk upright on two legs. Light helps explain the evolution of our skin colour, why some of us have curly hair, and even the size of our eyes. As we’ll explore ...

Eyes come in many shades, ranging from dark to light brown, and from green, hazel ... and they are also responsible for the color of our hair and our skin. Melanocytes can make two different ...

Sandy-blond hair, as seen on Hailey Bieber, mixes hues of blond and light brown together. The cool-toned look pairs beautifully with hazel eyes. Don't be afraid to stick with a dark brown hair ...