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Why Korean hair so thick?


Korean women are known for their thick, lustrous hair that many envy. It’s no secret that Koreans take their hair seriously, and this is evident in the many hair care products and treatments available in the market. But why is Korean hair so thick? In this article, we will delve into the reasons behind this unique phenomenon and explore the science behind it.


One of the primary reasons why Korean hair is so thick is genetics. Koreans have a gene called FGFR2, which is responsible for hair thickness. This gene ensures that hair follicles are large and produce more hair strands, resulting in thicker hair. Additionally, Koreans have straight hair, which makes it appear thicker compared to curly or wavy hair.


Diet plays a significant role in hair health, and Koreans consume a diet rich in nutrients that promote healthy hair growth. Koreans eat plenty of seafood, vegetables, and fruits that provide essential vitamins and minerals like iron, zinc, biotin, and omega-3 fatty acids. These nutrients help to nourish the hair follicles and promote healthy hair growth.

Scalp Care

Korean women are known to be meticulous about their scalp care routine. They use specialized products like scalp scrubs and toners to remove buildup and promote scalp health. A healthy scalp means healthy hair growth, so taking care of the scalp is essential to maintaining thick hair.

Hair Care

Apart from scalp care, Korean women also take care of their hair with specialized products like hair masks and serums. These products nourish the hair strands, making them stronger and less prone to breakage. Additionally, Koreans use minimal heat styling tools and opt for air drying instead to prevent damage to the hair.


Hormones also play a role in hair thickness. Koreans have high levels of estrogen, which is responsible for thicker hair growth. Estrogen stimulates the hair follicles to produce more hair strands, resulting in thicker hair.


Koreans lead a healthy lifestyle that promotes overall wellness. Exercise, stress management, and quality sleep are all factors that contribute to healthy hair growth. A healthy lifestyle ensures that the body receives adequate nutrients and oxygen, which are essential for hair growth.


The climate in Korea is humid, which can contribute to hair thickness. Humidity hydrates the hair strands, making them appear fuller and thicker. Additionally, Koreans avoid harsh sunlight, which can damage the hair and cause breakage.

Herbal Remedies

Korean women also use traditional herbal remedies to promote hair growth and thickness. Herbs like ginseng and green tea are rich in antioxidants that protect the scalp and promote healthy hair growth.

Hair Dyes

Koreans are known for their love of vibrant hair colors. However, many Korean hair dyes contain natural ingredients like ginseng and green tea that nourish the hair while coloring it. These dyes prevent damage to the hair strands, resulting in thicker and healthier-looking hair.

Stress Levels

Stress can cause hair loss and thinning, but Koreans have relatively low-stress levels compared to other countries. This is due to their culture of mindfulness and relaxation practices like meditation and yoga. Low-stress levels ensure healthy hair growth and thickness.


Korean hair is thick due to a combination of genetics, diet, lifestyle, scalp care, and herbal remedies. A healthy scalp and nourished hair strands contribute to thick and lustrous hair that many envy. By adopting some of these practices, anyone can promote healthy hair growth and thickness.

Why do Koreans have great hair?

In South Korea, both men and women have a detailed three-step process for keeping their hair healthy. This includes washing with shampoo and conditioner, followed by the use of hair essence or oil for a shiny finish. Other essential hair care items include masks, serums, milks, and mists. Cho explains that this approach is highly valued in South Korea.

Why is Korean hair so healthy?

Korean women typically use a deep cleansing oil before shampooing their hair, and when they do use shampoo, they massage their scalp gently for a few minutes. Their shampoos often contain natural ingredients that are essential for nourishing their hair, rather than relying on chemical-based products.

How often do Korean wash their hair?

In Korea, individuals prefer to shampoo their hair on a daily basis to combat the impact of environmental pollution such as fine dust and gas emissions. By contrast, Americans typically wash their hair every 2-3 days as it is believed to be better for the overall health of their hair.

Is Korean hair thicker?

A study has shown that although the overall thickness of hair cuticles is greater in Asians, the thickness of each individual layer is similar between Asians and Caucasians. Additionally, recent research with a larger sample size confirmed that the median cuticle thickness of Asian hair is higher than that of African and Caucasian hair.

What do Koreans eat for hair?

Kimchi is an essential component of the Korean cuisine, providing numerous benefits to health due to its high nutrient and mineral content that bolster the immune system and maintain the health of the hair and skin, resulting in shiny and soft hair.

Who has the thickest hair in BTS?

Jin’s hair is thick, which may give the impression that his head is flatter when it is pressed down. This was mentioned on December 19, 2022.

It is important to note that not all Koreans have thick hair. Hair thickness is also influenced by individual factors like age, health conditions, and medications. Aging can cause hair strands to become thinner and more brittle, while certain health conditions and medications can also affect hair growth and thickness.

In addition to genetics, diet, and lifestyle factors, proper hair care practices can also contribute to hair thickness. Regular trims to remove split ends and prevent breakage, gentle washing with sulfate-free shampoos, and avoiding tight hairstyles that pull on the hair can all help maintain healthy, thick hair.

Lastly, it is worth noting that the concept of beauty standards and the pressure to conform to them can also play a role in why Koreans place such emphasis on thick hair. Thick hair may be seen as a desirable trait in Korean society, leading to the development of numerous hair care products and treatments aimed at achieving this ideal. While it is important to take care of one’s hair for health reasons, it is also important to recognize and challenge societal beauty standards that can perpetuate harmful ideas about self-worth and appearance.

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