Several factors determine the appearance of identical twins. While some twins appear identical, others don’t even look like twins. Can twins have hair of different shades? Yes, twins can have hair that is not the same colour. Although fraternal twins and identical twins are more likely to have distinct hair colours, it is still possible for both types to emerge with distinct hues on their heads. Twins can be born with different hair colours or develop different hair colours over time due to biological and/or environmental factors. People wondering if identical twins have different hair colors must know that there could be many reasons your twins have different hair colours.

Differences in Twins’ Hair Colors

Most people think twins will look the same or very similar. However, there are a variety of twins, which can significantly impact the degree to which their features will be identified upon birth.

Hair Color and Fraternal Twins 

Two distinct eggs are fertilised by two distinct sperm to produce fraternal twins. Fraternal twins can have different hair colours because they can be boys and girls.

Because fraternal twins do not share DNA with siblings born at different times, their characteristics can be just as diverse. Some people will have the same hair colour, but others won’t.

Hair Color and Identical Twins 

A single fertilised egg splits to produce identical twins. This indicates that they share nearly identical DNA, including their hair colour. Although identical twins may not appear identical, their differences are typically much more subtle. Rarely is there an anomaly in which one identical twin has a different colour than a twin sibling?

However, recent research has shown that only 38 of 300 identical twins studied had the same DNA. There is, in fact, ample room for physical differences to emerge because of this. In the case of one of the twins, hair loss issues can develop, and in such circumstances, it is imperative to know the hair transplant cost in India and proceed accordingly.

Factors That Cause Identical Twins to Have Different Hair Colors

There are a few reasons why identical twins may have different hair colours. Some take place outside the womb, while others take place inside.

Biological Factors 

Although identical twins may exhibit minor variations, they share nearly identical DNA. Gene mutations can affect the degree to which the cells that make up the babies are identical after the egg splits. Gene mutations in identical twins can also affect eye colour and skin colour. Rarely can this significantly impact something as minor as hair colour?

External Factors 

When identical twins emerge from the womb, their external appearances may shift. The hair of a twin who spends more time outside may be lighter than that of a twin who stays indoors.

To differentiate themselves from their twin siblings, identical twins can also choose to change their appearance. Some twins may dye their hair differently because it’s easy, and they don’t want to be confused with their twin siblings.

Some critical aspects to note 

For those who are unaware and tend to wonder if identical twins have different hair colours, identical twins practically originate from a single egg fertilised by a single sperm and then split into two embryos. Non-identical twins, on the other hand, or fraternal twins, are born of two different eggs that are fertilised by two different sperm cells. However, do identical twins share the same DNA?

Well, this is at least what the world has believed up until this point. However, recent research has demonstrated that twins with identical DNA at birth have slightly different DNA reaching full maturity in their mother’s womb. This is because the first egg divides multiple times, resulting in two clusters of cell splits, each of which becomes a twin. These clumps of cells repeatedly divide as they grow into new babies.DNA variations and even mutations are the results of this exponential division process.

Having said that, in most instances, this distinction is rather insignificant and does not affect the appearance of these identical twins. Although this isn’t always the case, most identical twins have identical skin, eye colour, and even hair type. Each child may inherit distinct genes that can influence numerous physical characteristics as the DNA divides. So, don’t worry if you have twins who look identical but have different skin tones or hair quality.

If one of the siblings in a pair of twins had been considering receiving a donor graft for a hair transplant from the other, this might be a surprise. The immune system may reject the transplant due to the differences in the protein structures of the hair follicles. So one must be aware of these aspects before considering a transplant. Another important aspect to reckon with is the hair transplant cost in India so that people face later no complications.


To sum up, it is very much possible for twins to have different hair colours despite being identical. There is a solid biological framework behind that. Here we explored those intriguing facets and how transplantation can help if certain issues develop.

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Ava Green
Ava Green is a certified yoga instructor and holistic health coach with a passion for promoting mind-body wellness. With over 5 years of experience in the field, Ava has worked with clients of all ages and backgrounds to help them achieve greater balance and harmony in their lives. She is dedicated to helping people reduce stress, improve their mental health, and cultivate a deeper connection with their bodies through yoga, meditation, and other holistic practices. Ava has written extensively on topics such as mindfulness, self-care, and the benefits of yoga for overall health and well-being. Her mission is to inspire and empower others to live their best lives by embracing a holistic approach to health and wellness. When she's not teaching or writing, Ava enjoys hiking, cooking healthy meals, and spending time with her family.