Dyeing the underneath of your hair, also known as an underlayer, peek-a-boo, or hidden layer, involves adding color to the hair underneath the top layer, creating a subtle or bold contrast. This technique allows for a pop of color or a more dramatic change without fully committing to a new hair color.
Underneath hair dyeing has gained popularity due to its versatility and low maintenance. It can enhance natural hair color, create a unique style, or add depth and dimension to your hair. Additionally, it’s less damaging than dyeing the entire head of hair and allows for easy color changes as the top layer grows out.