Single-process color completely changes your hair color and is great for a dramatic change or covering grays. Double-process color involves bleaching the hair before adding a new color, offering ...

There are limits to what humans can see and how quickly they can perceive it. Some of these limits are set by the manner in which the brain processes incoming information, and it is of particular ...

Making big hair decisions can be a very daunting experience. If you're anything like us, hair changes outside of a standard trim can seriously make you reconsider departing from just a wash and style ...

There are hundreds of thousands of distinct colors and shapes that a person can distinguish visually, but how does the brain process all of this information? Scientists previously believed that the ...