Does Vitamin D Help Hair Growth? The Science and Benefits Explained


Hair is a significant and visible aspect of the human body, contributing to people’s physical appearance and self-esteem. Hair growth is a continuous process that occurs in stages and can be affected by several factors, from hormonal changes to environmental factors and genetics. Hair goes through three primary stages: the anagen (growth), catagen (transition), and telogen (resting) phases. Each hair strand goes through this cycle multiple times. Vitamin D plays a crucial role in stimulating this cycle and promoting hair growth.

The Science Behind Vitamin D and Hair Growth: What You Need to Know

Vitamin D is a fat-soluble vitamin that your body produces naturally when you are exposed to sunlight. This essential nutrient is responsible for maintaining healthy bones and teeth, strengthening the immune system, and reducing inflammation. However, recent studies suggest that vitamin D also plays an active role in hair growth.

Vitamin D receptors (VDR) are present in hair follicles, indicating its importance in hair growth and development. VDRs regulate the expression of genes that stimulate hair growth and increase hair follicle size. So, a deficiency in vitamin D can result in weak hair growth, hair thinning, and even hair loss.

Can Vitamin D Really Help with Hair Growth? Expert Opinions and Studies

Several scientific studies have explored the effectiveness of vitamin D in promoting hair growth. For example, a 2012 study published in Stem Cells Translational Medicine showed that vitamin D triggers the formation of new hair follicles and could be an effective treatment for hair loss. Another study in 2018 reported that individuals with female pattern hair loss had significantly lower vitamin D levels than those without hair loss.

Many experts also agree on the potential of vitamin D in promoting hair growth. In an interview with Medical News Today, Dr. Robert T. Brodell, professor and Chair of Dermatology at University of Mississippi Medical Center, emphasized the importance of vitamin D in maintaining healthy hair follicles.

However, it’s important to note the limitations of the studies around Vitamin D and hair growth. More research is needed to establish definitive conclusions and to understand the specific dosages, frequencies, and methods required to optimize Vitamin D’s effects on hair growth.

Foods Rich in Vitamin D for Stronger, Longer Hair: A Comprehensive Guide

While Vitamin D is known as the ‘sunshine vitamin, it can also be obtained through natural food sources. Although it is not easy to get adequate amounts from food alone, increasing your intake of Vitamin D-rich foods can help promote hair growth.

Some of the best sources of Vitamin D are:

  • Fatty fish (salmon, mackerel, sardines, tuna)
  • Egg yolks
  • Cheese and yogurt
  • Mushrooms
  • Fortified foods

But simply eating Vitamin D-rich foods alone won’t provide enough Vitamin. Vitamin D supplementation can help to provide you with enough of this nutrient regularly. Keep on reading to know more about vitamin D supplements

10 Benefits of Vitamin D for Hair Health You Didn’t Know About

Vitamin D plays a vital role in many aspects of hair health. Here are some of the lesser-known benefits of vitamin D:

  • Stronger, healthy hair: Vitamin D enhances hair follicle strength, resulting in fuller hair and less hair loss.
  • Promotes hair growth: It stimulates hair follicle growth and boosts blood circulation in the scalp, resulting in longer, thicker hair.
  • Reduces inflammation: Vitamin D has anti-inflammatory properties, reducing scalp inflammation that can cause hair loss.
  • Helps prevent infection: Vitamin D boosts the immune system, helping to ward off infections, including dandruff and scalp acne, which can affect hair growth.
  • Lessens hair breakage: Vitamin D helps to improve hair elasticity, reducing breakage and split ends.

Vitamin D Deficiency and Hair Loss: How to Prevent and Reverse It

Vitamin D deficiency is a common issue, with around 1 billion people worldwide suffering from it. Apart from weakened bones and compromised immune function, vitamin D deficiency can also lead to hair loss.

The problem is that most people do not realize they have a Vitamin D deficiency as the symptoms can be subtle. However, some of the common symptoms that indicate a deficiency are:

  • Tiredness
  • Hair loss
  • Muscle weakness
  • Increased risk of infections
  • Depression or seasonal affective disorder (SAD)

The most effective way to prevent vitamin D deficiency is to expose your skin to the sun for 15-30 minutes a day. For most people living in mild to moderate climates, during this time Vitamin D will be synthesized by the skin. If your location or lifestyle makes this challenging, intake vitamin D-rich foods or supplements is an effective solution.

Working with a doctor or a licensed nutritionist can help determine the appropriate dosage of Vitamin D and ensure proper supplementation.

Natural Remedies for Hair Growth: The Role of Vitamin D and Other Nutrients

Getting sufficient Vitamin D alongside other vital nutrients can help strengthen hair, boost hair growth, and enhance hair health. Here are some ways to enhance your body’s absorption of Vitamin D and other nutrients for healthy hair:

  • scalp massages: Massages can stimulate blood flow to the scalp and enhance nutrient absorption in hair follicles.
  • Biotin supplements: Biotin is a B-complex vitamin that promotes keratin production, one of the crucial components in hair.
  • Zinc supplements: Zinc is essential for healthy hair growth, improving scalp health, and supporting the immune function of hair follicles.

The Top Vitamin D Supplements to Boost Your Hair Growth Journey

Supplements can help ensure you are getting sufficient Vitamin D for hair growth, especially those with a Vitamin D deficiency

When picking a supplement, it is essential to choose one that is safe and effective. Here are some of the best Vitamin D supplements:

  • Garden of Life Vegan Vitamin D3: Naturally-derived, organic, and free of artificial ingredients.
  • Nordic Naturals Vitamin D3: Non-GMO and gluten-free and made from wild-harvested fish oil.
  • Natures Made Vitamin D3: low-cost option and widely available, in packs of 100 to 400 soft gels.


Vitamin D is essential for promoting healthy hair growth and preventing hair loss. From regulating gene expression to aiding in the formation of new hair follicles, it’s clear that vitamin D plays a crucial role in hair health. You can naturally increase vitamin D levels in your body by consuming vitamin D-rich foods, getting sufficient sunlight, or by Vitamin D supplements. Natural remedies such as scalp massages, biotin supplements, and zinc supplements combined with this, can support healthy hair. However, always consult a professional to determine the best course of action to promote hair health.

Webben Editor

Hello! I'm Webben, your guide to intriguing insights about our diverse world. I strive to share knowledge, ignite curiosity, and promote understanding across various fields. Join me on this enlightening journey as we explore and grow together.

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