Hazelnut hair color is a rich, multi-dimensional brunette shade with warm undertones that adds natural depth to any look.

Aging can make finding the right hair color a little trickier, which is why we spoke to an expert to learn which shades ...

Plus, this option could be especially enticing if you want your hair to appear thicker. The key to nailing espresso brown is ensuring the undertones match your skin tone and eye color.