Uncover the Surprising Truth: The Impact of Hydration on Hair Growth

Water is essential for our overall health and well-being. Our bodies are made up of 60% water, and it plays a crucial role in various bodily functions, including digestion, circulation, and temperature regulation. But have you ever wondered if drinking a lot of water can also help your hair grow? In this article, we’ll delve into the benefits of drinking water and its impact on hair growth.

The Science Behind Hair Growth

To understand if water can promote hair growth, we must first understand the science behind hair growth. Each strand of hair grows from a follicle located in the scalp. This follicle is supplied with nutrients and oxygen through blood vessels, which in turn nourishes the hair and promotes growth. The nutrients that are carried to the follicles are obtained from the food we eat and the water we drink.

Hair growth occurs in three phases – anagen, catagen, and telogen. The anagen phase, also known as the growth phase, lasts for about 2-7 years, during which the hair grows actively. The catagen phase is a transitional phase, lasting for about 2-3 weeks, during which the hair stops growing. The telogen phase, also known as the resting phase, lasts for about 3-4 months, after which the hair falls out and new hair starts to grow.

Now that we understand the stages of hair growth, let’s explore how drinking water can affect it.

The Role of Water in Promoting Hair Growth

Drinking water is essential for maintaining a healthy balance of fluids in our body. It helps to regulate body temperature, transport nutrients and oxygen to cells, and eliminate waste products. When our body is dehydrated, the blood supply to the scalp is reduced, which can lead to hair loss and slower hair growth. On the other hand, when we are properly hydrated, the follicles receive a continuous supply of nutrients and oxygen, promoting healthy hair growth.

Additionally, drinking water can also improve the condition of your scalp. A well-hydrated scalp means a better environment for hair growth. It can help to prevent dryness, dandruff, and irritations, which can hinder hair growth. The hydration also helps to improve the elasticity of the skin, including the scalp, making it more flexible and allowing hair to grow freely without being blocked by a dry, tight scalp.

Factors That Can Affect the Effectiveness of Drinking Water on Hair Growth

While drinking water can play a significant role in promoting hair growth, there are other factors that can affect its effectiveness. Some of these factors include diet, genetics, and overall health.

A healthy diet that includes essential vitamins, proteins, and minerals is crucial for healthy hair growth. Adequate protein intake is essential for the production of keratin, the structural component of hair. Iron, zinc, and biotin also play a vital role in promoting hair growth. Therefore, in addition to drinking water, it’s essential to maintain a well-balanced diet for healthy hair.

Genetics also plays a significant role in determining hair growth. If your family has a history of slow hair growth, you may also experience the same. While drinking water can improve the overall health of your hair, it may not be able to compensate for genetic factors that affect hair growth.

Lastly, overall health and certain medical conditions can also impact hair growth. Chronic illnesses, hormonal imbalances, and stress can all lead to temporary hair loss and slower hair growth. In such cases, drinking water alone may not be enough to promote hair growth. Visit a doctor to diagnose any underlying health conditions that may be affecting your hair growth.

How Much Water Should You Drink for Healthy Hair Growth?

The recommended daily amount of water intake for adults is 2-3 liters, or 8-12 cups. However, the actual amount of water you need to drink depends on various factors such as your age, weight, activity level, and climate. It’s essential to listen to your body’s thirst signals and drink water accordingly. Additionally, you can also increase your water intake if you’re exercising or live in a hot climate.


Drinking water is crucial for our overall health, and it also plays a significant role in promoting hair growth. However, while it can improve the condition of your scalp and provide essential nutrients to hair follicles, it may not solely affect hair growth. Factors such as diet, genetics, and overall health also play a role in determining hair growth. Therefore, it’s essential to maintain a balanced diet and seek medical advice if you experience any issues with hair growth.


This article is for informational purposes only and is not intended to serve as medical advice. It’s always best to consult a doctor or healthcare professional for any specific concerns or issues related to hair growth or overall health.

About The Author

Scroll to Top