Red is the rarest hair color, but to understand why that’s the case, you need a basic grasp of the science. There’s a lot ...

In most cases, African hair is supposed to be black and thick, but after some time you will start noticing the strands are looking brown and not ... give it thicker and dark hair.

This salt of silver, when applied in solution to hair, and exposed to light, converts it either into a dark brown or black, according to the strength of the solution ; but it possesses the defect ...