Well, grey hair is considered a sign of old age. Ageing and changing of hair colour is a normal process and it depends on various factors from genetics to hormones.

While it is normal to hair colour to change, the white hair can appear at different ages in a lifetime. Even teenagers and people in their 20's may notice strands of white hair at some age. The human body is designed to have millions of follicles or small sacs lining the skin that generate hair or the colour pigment cells that contain the type of melanin, i.e. eumelanin. If there is more eumelanin, then the colour of the hair is darker; if less eumelanin is present, the hair is lighter.


What are the causes leading to the white or grey hair? Whether the grey hair can turn black again or not? Well, all these topics are discussed below.

There can be various factors causing the hair colour to change from black to grey prematurely including vitamin deficiencies, smoking. These causes of white hair are efficient in the solutions of treating the hair.

Vitamin deficiencies:

When cells at the hair base (melanocytes) stop producing the pigment which is responsible for the hair colour, well that is when the hair started turning grey. A vitamin that is very essential for the production of Vitamin B12 B-6, biotin, vitamin D, or vitamin E can contribute to premature graying.


Premature greying of a person's hair is largely connected to genetics. Race and ethnicity play significant roles, as well. Studies have showcased that across the world, there are different ages at which the premature graying of the hair can start. In white people, it can start as early as 20 years old, while a person can be as young as 25 years old among Asians, and 30 years in African-Americans populations.

Oxidative stress:

A key problem that can lead to many diseases including Alzheimer's is oxidative stress which is an imbalance between free radicals and antioxidants in the body. The free radicals are oxygen-containing molecules with an uneven number of electrons and when antioxidants are not enough to counteract the damaging effects of free radicals, it leads to ageing and disease.

Medical Conditions:

From autoimmune diseases to thyroid disorders, there are various medical conditions which may increase a person's risk for greying early. White hair is also common in alopecia areata, an autoimmune skin condition that causes hair loss on the scalp, face and other parts of the body. When the hair grows back, it tends to be white due to melanin deficiency.

Real-life stressors:

Stress is an inevitable part of our life. What are real-life stressors? Well, they are the conditions which can cause extreme stress. It can anything, from the death of the loved ones to divorce, to loss of a job, it may lead the hair to become white prematurely. However, studies have not conclusively proved this.


Smoking affects the body in different ways. It restricts the blood flow to the hair follicles and causes hair loss. Smokers have higher chances of having grey hair at the age of 30 than the non-smokers according to a study conducted in 2013. The toxins in the cigarettes cause the damaging of the hair follicles.

Chemical hair dyes and hair products:

Does colouring causes the hair to get grey? Well, it is true that it makes your hair dull and vulnerable to damage, but they are also a major reason for the grey hair. The chemical hair dyes and hair products, even shampoos contain harmful ingredients that decrease melanin. While hair dyes have a key ingredient of Hydrogen peroxide, which is in many hair dyes, is one such harmful chemical. Excessive use of products that beach hair will also eventually cause it to turn white.


If genetics or ageing are causing the grey hair, there is no effective way to prevent or reverse the process. However, it can be treated if other factors are causing the premature greying of the hair. In this case, it is suggested to reach out to health experts to get the correct advice regarding what should be done to solve the problem. You can easily do so by reaching out to the best digital healthcare platforms like and getting the proper guidance from the experts.

When it is influenced by the diet and vitamin deficiency, it is important to acknowledge and correct the problem or stop it from worsening. Increasing the amount of vitamins in the diet.

To address these deficiencies, supplements can be a convenient option. Platforms like offer a variety of high-quality vitamin supplements designed to effectively meet your nutritional needs.

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