• It’s almost possible that 100% natural black human hair doesn’t exist. The human brain’s visualisation of as black hair actually is dark brown hair.
  • It’s clearer if we view the hair in natural light. We can see some red highlights since red is the underlying colour of hair which appears like black.
  • This means that the famous deep black, night black or jet black is only able to be attained with black hair dye.

Wow, what a surprise!

You’ve probably been envious of your colleague’s black hair for many months. Now then, you will realise that in reality, that dark black, that is so beautiful, so deep, and this attractive black hair is actually the result of the black hair dye. This is how it works when it comes to colourimetry. They can trick people who aren’t aware at all. Eyes can also play tricks on all of us. You might also be interested in: How many sessions do you need for going from dark to blonde? How many trips to the salon?

Imagine the pictures that ridicule the caravans of people who travel in the great deserts. From one moment to the next, people see an oasis right in front of their eyes. As they approach the oasis changes to sand, sand and then more sand. When it comes to hair colour, things appear to be more or less identical because your eyes are able to deceive you depending on the light you view.

But, our eyes aren’t responsible for all of it. There’s another factor that is the reason we perceive hair as black, when hair is actually dark brown. All of it is based on the composition of hair.

black hair


This subject reminds us of our hairdressing classes in school. It is important to appeal to the physiology to determine whether hair can be natural black. That’s the conclusion of scientific research studies.

In simple terms, the first thing to be aware of is that the natural hair colour is created by melanin. Melanin is a colouring pigment that is present in some cells. It is responsible for colouring our eyes, skin as well as hair.

Did you realise that your hair has two different types of pigment?

  • Yes, the two primary kinds of pigments are diffuse and granular. The granular pigments are reddish and diffuse ones are yellowish.
  • The greater the amount of granular pigments, the darker the hair will become. Also, the greater the percentage of diffuse pigments and the lighter the hair will appear.

In reality, even if the hair has the highest amount of granular pigments, it’ll turn dark brown rather than black in 99.9 percent of the instances. There is one more aspect. If you expose the hair “that looks black”, under sunlight, you’ll see the highlights in reddish. Why? The reason is because dark hair contains a higher percentage of granular pigments. What hue were the granular pigments? Reddish!

That is the reason when you bleached natural black hair, the red highlights will appear. Hence, your eyes will deceive you when you are looking  at black hair. In this moment we have to be sympathetic to our own eyes that allow us to appreciate the beauty of the world.

It’s not their fault. Another person is contributing to our perception of dark brown hair appearing black. Are you aware of what it means?

The Incidence of Light.

This is why, when you are looking at hair that appears black under the natural light, you will observe red highlights. What is the reason for this? Since visual perception of the eye of the maximum darkness is black. This is due to the absence or total absorption of light. It’s an achromatic hue. It isn’t any tone. It’s grey and white.

This is why, when we see dark brown hair, similar to black, it is possible to distinguish red highlights when we look at the hair in daylight. If this all sounds amazing to you and we have another interesting thing to share with you.

Do you know who could actually boast natural black hair?


The primary difference between animal and human hair is the hair’s thickness. Animal hair is more coarser and thicker than human hair. Although their hair’s inner structure is similar, the pigment of hair from animals is more diverse. This is why animals have hair that is black.


To achieve black hair, it is necessary to dye it. Hair dye is an artificial hair colour developed and formulated by scientists in order to reach the desired result: complete black. The elements ammonia, resorcinol, toluene, sulphates, ammonium chloride and three main pigments colours, blue, red as well as yellow are used in the production of hair dyes. It’s the main colour used in all hair dyes of the colour charts which are found in hairdressing salons or in stores.

The most important fact to note is that to create the black hue, companies have used mostly blue-coloured pigments. When they’re mixed with the tones given by other pigments, it will entail a neutral black shade. This implies that the black hair dye is made up of a different ratio of each of these pigments. This is why you can find the bluish-black colour, for example. It has a larger percentage of blue pigments.


It actually is the dark brown hair, when we notice hair to be black. If we examine it in natural light you can see highlights that are reddish colour.

To get hair that is absolutely black such as black as night, you may make use of black hair dye. It will give you the artificial pigments that will result in dark hair.