We all know at least one person who when he was a baby had light hair and over the years it has been darkening. Many of the children are born blonde and then grow up with brown or even black hair. The hair of babies, in addition to being lighter, is more fragile than that of adults as well as smoother. This is because hair is a living structure which has an evolutionary cycle that adapts to the environment, as well as an aging cycle through which hair changes over the years, which is why many times we wonder why this change in color is due if the same does not happen to everyone.
That is why in the following FastlyHealarticle we will take care of explaining why hair darkens as it grows , so that you know the reason for this and realize that it is something completely normal.
What is melanin
Melanin is a pigment that provides hair color in people, it arises from cells called melanocytes. The melanin in the hair is divided into two forms:
- The eumelanin being responsible for dark colors in the hair as brown or black.
- The pheomelanin , responsible for light colors such as blond, red or silver.
That is why it can be said that the more amount of eumelanin there is in the hair, the darker it will be, the opposite would be about the pheomelanin.
As the person grows, the hair follicles are altered and consequently they lose melanin, from there come the gray in the person.
Why does hair grow darker?
Hair color is determined by the presence, quantity or quality of a pigment called melanin. Over time, the melanin system begins a maturation process, because the hair strand is a living structure that, like us, grows, matures and ages. This maturation process is responsible for the change in hair color, because it produces an increase in the density of melanocytes . Melanocytes are cells found in the roots of the hair and are responsible for producing melanin , which is responsible for hair color. In summary, color changes in the hair arise as a consequence of the maturation of the cells.
This color change will be influenced by genetics and heredity , for example, there are babies who are born with a higher concentration of pheomelanin and therefore will remain blonde until they grow up, however, in the vast majority of cases the concentration will be higher. of eumelanin and that is why the hair darkens as the person grows. However, all this will depend on the genetics of each person, because this will establish the type of melanin that the baby has and the maturation procedure of the baby.
There are also young people who at an early age already start to have gray hair, which is closely associated with family inheritance. It can be determined that the reason why the hair darkens as it grows will also depend on the maturation process of the cells and factors such as :
- Genetics and heredity.
- The nutrients that you offer to your hair.
- Aging and passage of time.
No need to prevent hair from darkening
Although very few people know it, having your hair darken as it grows is better for the health of your hair. When you are a baby, the hair is lighter and more fragile due to all the above mentioned and over the years it darkens due to the concentration of eumelanin, because this darkening brings a positive meaning to the hair because it makes it stronger and more resistant , remember that always dark colors resist or are less prone to damage. A similar example is what happens with the eyes; a person with light eyes is more likely to have some visual alteration than one with dark eyes, in the same way, dark hair is more resistant to damage than blond or reddish hair.
However, the baby’s hair color is always determined by family inheritance, depending on the dominant gene that exists between the pair of genes, which is why not all babies present the color change when they begin to grow.
This article is merely informative, at FastlyHeal .com we do not have the power to prescribe medical treatments or make any type of diagnosis. We invite you to see a doctor in the case of presenting any type of condition or discomfort.
If you want to read more articles similar to Why does hair darken as it grows , we recommend that you enter our category of Aesthetic treatments .
I am a Surgeon with a diploma in comprehensive ultrasound and surgical care residency, an area I am specializing in. During the exercise of my profession, I have realized the need for patients to know the diseases they suffer, and I can tell you that a large part of their complications is due to a lack of information. Being a health web writer allows me to transmit my experience, without borders, to all those readers eager for knowledge, educate them in the prevention of diseases and promote a healthy lifestyle.