Does Drinking Water Help Hair Growth? Here’s Everything You Need To Know

Medically reviewedby Dr. Amy Revene M.B.B.S.
WrittenbyLuat Duong
Last updated

Does drinking water help hair growth? Hydration plays a crucial role in maintaining overall health, and when it comes to your hair, it's no different. 

Drinking enough water not only nourishes your hair from the inside out but also supports your hair follicles by promoting healthier and stronger growth.

In this article, we'll explore how water is a key ingredient to achieving lush, vibrant hair.

Does drinking water help hair growth?

does drinking water help hair growth

While staying hydrated is essential for maintaining overall health, there is no direct evidence suggesting that increased water intake promotes hair growth. The hair growth process is complex, involving a cycle of growth, transition, and rest—known as the anagen, catagen, and telogen phases. 

Although proper hydration supports general body functions, which indirectly benefits hair health, drinking water alone doesn't enhance the hair growth cycle. 

Hair relies on various nutrients like iron, zinc, and biotin for strength and resilience. While tap water might contain trace amounts of minerals, it's not a significant source of the nutrients essential for hair growth. 

Therefore, while it's crucial to drink plenty of water for overall health and a hydrated scalp, there's no proof that it accelerates hair growth. 

However, a well-hydrated body can prevent hair from becoming dry and brittle, supporting the natural vitality of your hair.

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6 ways drinking water helps hair growth

Here are 6 ways drinking water helps hair growth:

1. Hydration energizes hair cells

Water acts as the primary energy source for all body cells, including those that affect hair growth and health. 

Proper hydration helps to nurture these cells and even assists in transporting essential vitamins to the follicle.

2. Water stimulates hair roots

The scalp and hair roots are filled with sensitive nerve endings. Water activates these nerves and other sensors, enhancing the natural vitality of the hair roots and promoting a healthy hair environment.

3. Prevents dandruff and thinning

Just as a plant needs water to thrive, so does your hair. Adequate water intake helps keep your scalp hydrated, warding off dandruff and reducing the likelihood of hair thinning.

4. Strengthens hair

Water makes up about 25% of the weight of a single hair strand. Drinking sufficient water contributes to hair strength, enhancing its growth and preventing brittleness and split ends.

5. Prevents dehydration-induced stopping of hair growth

Dehydration can stop hair growth entirely. It is essential to maintain moisture levels in the hair, as dryness can lead to halted growth and damaged hair ends.

6. Enhances energy transmission to hair ends

Drinking plenty of water ensures that energy is efficiently transmitted from the scalp to the hair’s ends. This hydration helps maintain a healthy scalp, potentially reducing hair issues like dandruff.

What hydrates hair?

does drinking water help hair growth

To hydrate hair effectively, both internal and external hydration are crucial. Drinking enough water is essential, but incorporating certain oils like coconut oil can also significantly benefit hair health. Coconut oil, in particular, has been shown to strengthen hair fibers. 

Regularly oiling your hair with such oils can enhance scalp health, add moisture, and improve overall hair condition.

While maintaining hydration is key, it's also important to avoid over-washing your hair. Excessive shampooing can strip your hair of its natural oils, leading to damage and brittleness. 

Therefore, balancing hydration and hair care practices is essential for maintaining healthy, hydrated hair.

Does drinking more water thicken your hair?

Drinking water alone does not directly thicken hair; hair thickness is primarily determined by genetics, as well as factors like hormones and age. However, proper hydration supports your body's overall health, including hair health. 

Keeping hydrated helps your hair retain moisture, which is crucial in any climate and contributes to maintaining the natural texture and health of your hair. So, while drinking more water might not thicken your hair, it helps maintain its health and appearance, which is vital for anyone aiming for beautiful, healthy locks.

What are the benefits of staying hydrated?

Staying hydrated goes beyond just quenching your thirst—it plays a critical role in various bodily functions. Here’s how keeping up with your water intake can benefit you:

  • Maintains body temperature: Water helps regulate your body's temperature, which is especially crucial in hot climates or during physical activity.
  • Protects your joints: Water is a key component of synovial fluid, which cushions your joints, reducing the risk of damage.
  • Aids in waste processing: Hydration is essential for healthy digestion and helps your body flush out waste products like urine and perspiration.
  • Flushes out bacteria: Drinking enough water helps remove bacteria from the body, preventing potential infections.
  • Maintains electrolyte balance: Water helps balance important minerals and electrolytes, crucial for proper bodily functions.
  • Supports heart health: Proper hydration is vital for normalizing blood pressure and stabilizing heart function.

How much water should you drink for hair growth?

does drinking water help hair growth

According to the University of Missouri System, you should drink an amount of water in ounces that equals half your body weight in pounds. Add an additional 12 ounces for every 30 minutes of exercise. 

Factors like climate, physical activity, and health conditions, including pregnancy, can influence your hydration needs. Whether it’s sweating on a hot day or combating dry air in winter, your water intake should adjust to meet your body’s demands.

What happens to your hair if you don't drink enough water?

Dehydration can have a significant impact on your hair, causing it to become dry and brittle. When your body lacks adequate hydration, the keratin that makes up your hair strands dries out, increasing the likelihood of breakage and stunting growth. 

The human body, which is composed of 60-80% water, relies on proper hydration to maintain cell health and reproduction. Without enough water, the cells responsible for hair growth cannot function effectively, leading to dry, withered hair and a disrupted natural growth cycle. 

Keeping your hair roots well-hydrated is essential as they are the primary channel through which water nourishes your hair.

A better approach for your overall hair health

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For those struggling with hair thinning and seeking a reliable solution, Bio-Pilixin® Activation Serum offers a scientifically backed option.

Developed by experts using advanced stem cell technology, this serum contains potent plant growth factors that nurture hair follicles and stimulate hair growth.

Clinical trials have shown promising results, with 77% of participants reporting reduced hair loss after just 45 days, and 93% experiencing a significant reduction in hair thinning by the end of the trial period.

The serum enhances blood flow to the scalp, supplying essential nutrients needed for hair health.

Many users report noticing less hair fall during showers within just a few weeks of starting the treatment. It’s not just about reducing hair loss; 73% of users saw a measurable increase in hair density after 150 days of consistent use.

Bio-Pilixin Serum is safe for daily use, being drug-free and designed for both men and women suffering from various types of hair loss. With a commitment to customer satisfaction, the product comes with a 150-day money-back guarantee. 

This means you can try the serum risk-free and potentially see transformative results, reflecting the effectiveness of the product as highlighted in the clinical studies. 

Whether you're looking to combat hair thinning or just aiming to enhance your hair's overall health, Bio-Pilixin offers a solid foundation for your hair care routine.

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While drinking water is essential for overall health and supports various bodily functions, its direct impact on hair growth is limited. 

Hydration plays a vital role in maintaining hair health by keeping the hair hydrated and preventing dryness and brittleness. 

However, for those looking to address hair thinning and promote hair growth, incorporating targeted treatments like Bio-Pilixin Activation Serum can provide significant benefits. 

This serum has been clinically proven to reduce hair loss and increase hair density, offering a practical solution for enhancing hair health. 

Remember, a balanced approach combining adequate hydration and specialized hair care treatments can help you achieve the lush, healthy hair you desire.


Can drinking water make your hair grow faster?

While drinking water is crucial for overall health and contributes to stronger hair, it does not directly make your hair grow faster. However, staying hydrated supports the health of hair follicles by maintaining the strength and elasticity of hair, which can indirectly influence growth rates.

What to drink for fast hair growth?

To boost hair growth, consider nutrient-rich drinks like kiwi juice, which is high in Vitamin C, and onion juice, which improves scalp circulation. Juices from leafy greens like spinach or kale, as well as omega-3 rich drinks from flaxseed or chia seeds, also promote healthy hair. Additionally, sweet potato and carrot juice provide beta-carotene, essential for maintaining healthy hair.

Which water is best for hair loss?

Fenugreek water is considered beneficial for hair loss. Fenugreek seeds are rich in antioxidants and anti-inflammatory properties, which can help in strengthening hair follicles and improving hair health, thereby reducing hair fall.



Luat Duong

Luat Duong is a Copenhagen-based writer and content strategist specializing in hair loss and health. His work has been featured in MyHealthGuide, The Right Hairstyles, and Woman's Era. He is a graduate of Vaasa University. You can connect with him on LinkedIn.