How Is Hair Color Determined?
Hair color is determined by two different forms of pigment: eumelanin (which is the largest influence) and phenomelanin. Eumelanin is a black pigment, and phenomelanin is a red or yellow pigment.
Read more →Hair Coloring Guide: Bleaching Risks and Grey Coverage
Choosing the right shade of hair color involves matching your skin tone and understanding the differences between semi and demi-permanent dyes. Learn how to lighten hair naturally in the sun or darken grey hair with coffee and tea.