The Role of Vitamins in Hair Loss

The Role of Vitamins in Hair Loss

Dr. Hamid HosseiniAuthor: Dr. Hamid Hosseini MD, MBioMed & PhD

(CEO & Founder of Hamita Biotech who discovered the unique formula of Dr. Hamid Hair Regrowth Products. A Clinician, Researcher & Immunologist who specialised in hair physiology & aesthetic medicine; Melbourne, Australia).

Hair loss can significantly impact a person's quality of life, making an effective treatment plan essential. Many people wonder how they can prevent or manage hair loss, and in this context, the role of a balanced diet and vitamin and mineral supplementation often comes into focus.

The human scalp boasts around 100,000 hair follicles, roughly 90% in the active growth phase (anagen). These follicles require essential elements like proteins, vitamins, and minerals for healthy growth and maintenance. Skin and hair changes are notably pronounced in individuals with protein-energy malnutrition or deficiencies in vitamins and minerals. The hair follicle bulb, housing rapidly dividing matrix cells, relies on tiny particles like vitamins and minerals for its normal development, including cellular turnover. Consequently, a nutrient deficiency is a modifiable risk factor for hair loss (1,2,3).

Let's explore the role of various vitamins in average hair growth and maintenance:


The importance of vitamin A for the body


Vitamin E

Vitamin A, a fat-based vitamin, plays multiple crucial roles in the body. It's vital for vision, immune function, and the average growth and differentiation of cells, including hair follicle growth. Vitamin A can be obtained from animal and plant sources in the diet, with the liver storing most of it. Typically, a well-balanced diet provides an adequate amount of vitamin A. The recommended dietary allowance for adults aged 19 and above is 1300 mcg/day (4300 IU) of vitamin A. However, excessive intake, surpassing approximately 10,000 IU a day, can lead to vitamin A toxicity (4,5,6).


The importance of Vitamin B complex for the body


The Vitamin B complex 

The Vitamin B complex plays a pivotal role in cellular metabolism and consists of eight vitamins: Vitamin B1 (thiamine), Vitamin B2 (riboflavin), Vitamin B3 (niacin), Vitamin B5 (pantothenic acid), Vitamin B6 (pyridoxine), Vitamin B7 (biotin), Vitamin B9 (folate), and Vitamin B12 (Cobalamin). Research has linked Vitamin B1, B2, B7, B9, and B12 deficiencies to hair loss [4]. In general, a well-rounded diet provides sufficient quantities of these vitamins. Biotin, the only B vitamin our bodies produce, doesn't require supplementation in healthy individuals.

The importance of vitamin B1 for the bodyVitamin B1 (Thiamine)

Vitamin B1 is found in many foods such as nuts, beans, and meat.  Thiamine is important for the metabolism of glucose in cells and energy production in our body. It also contributes to hair health in different ways. Thiamine improves blood flow to facilitate vital nutrients and oxygen delivery to the hair follicles by reducing the constriction of blood vessels in the scalp. Thiamine also acts as an antioxidant and protects all types of hair from damage (2,4,7).

The importance of vitamin B2 for the bodyVitamin B2 (Riboflavin)

 Vitamin B2 plays an important role in the development and function of cells, as well as in the metabolism of fats and energy production. Our body stores a small amount of vitamin B2 in the liver, heart, and kidneys. Hair loss due to riboflavin deficiency is extremely rare (4,5).

The importance of vitamin B7 for the bodyVitamin B7 (Biotin)

 Vitamin B7 found in proteins is a necessary factor for fatty acid, glucose, and amino acid metabolism. Biotin has important roles in cell signaling, and gene regulation and is stored in the small intestine and liver. The good news is that biotin deficiency is rare. Signs of biotin deficiency include hair loss, skin rashes, and brittle nails. The normal dose of biotin for adults is 30 mcg/day. However, many commercial supplements for hair, skin, and nails far exceed the recommended daily intake of biotin. There is no evidence of biotin toxicity (4,5,8).

Vitamin B9 (Folate)

Vitamin B9 is another water-soluble B vitamin and includes naturally occurring food folate and folic acid. Folate is important in the synthesis of nucleic acids and in amino acid metabolism. About 50% of the body’s vitamin B9 exists in the liver. The recommended dietary intake of folate is 400 mcg daily for adults, with the maximum intake level of 1000 mcg. People with poor diet, alcoholism, or a malabsorptive disorder are at risk of folate deficiency which can cause hair, skin, and nail changes (46).

The importance of vitamin B12 for the bodyVitamin B12

 Vitamin B12 is necessary for DNA, RNA, and protein synthesis, neurological function, and red blood cell formation. The recommended dietary allowance of vitamin B12 is 2.4 mcg for adults. The role of folate and vitamin B12 in DNA, RNA, and protein production suggests that they play a role in the highly proliferative hair follicle (4,5,7).


The importance of vitamin C for the body


Vitamin C (ascorbic acid)

 Vitamin C is a water-based vitamin derived from glucose metabolism and acts as an antioxidant preventing the oxidation of LDL (bad cholesterol) and free radical damage. Vitamin C is essential for the absorption of iron in the intestinal. Therefore, vitamin C intake is important in patients with hair loss associated with iron deficiency.

Citrus fruits, potatoes, tomatoes, green peppers, and cabbages are enriched in high concentrations of vitamin C. Vitamin C deficiency is associated with body hair abnormalities, but not directly with hair loss (4,5).


The importance of vitamin D for the body


Vitamin D

 Vitamin D is a fat-based vitamin produced in our skin. Vitamin D in the skin is inactive and transformed to sub-activated form called cholecalciferol by UVB in the skin and then into an active form in the liver and kidneys. Vitamin D has an anti-inflammatory and immunoregulatory effect and maintains serum levels of calcium and phosphorus (5,9).

Vitamin D modulates the growth and differentiation of keratinocytes of hair follicles in the anagen stage. Patients with severe vitamin D deficiency have hair loss as well as total scalp and body alopecia.

Alopecia areata is a disease dependent on autoimmunity, genetic predisposition, and emotional and environmental stress. Vitamin D deficiency is a common issue in patients with alopecia areata. Therefore, the vitamin D level has to be measured in patients with alopecia areata and vitamin D supplements should be considered for patients with alopecia areata and vitamin D deficiency (4,5,9).


The importance of vitamin E for the body


Vitamin E

 Our immune cells are extremely sensitive to oxidative damage and produce some elements to protect themselves from free radicals. Antioxidant supplementation fundamentally reverses several age-associated immune deficiencies, leading to increased immune cells and their antibody production, and boosting the immune system. Vitamin E is involved in the oxidant/antioxidant balance and protects against free-radical damage (9,10).

In conclusion, a well-balanced, healthy diet containing vitamins and nutrients is necessary for healthy hair (11). People with thin, unhealthy hair or hair fall can benefit from tailor-made products that could provide hair follicles with vitamins and nutrients necessary for their hair and skin health. We are proud to announce that Dr Hamid Hair Regrowth products contain active nano and microelements that ensure effective delivery of the essential vitamins and nutrients to hair follicles. Dr Hamid Hair Regrowth products are suitable for hair regrowth, hair loss prevention, and healthy hair maintenance, and promote thicker, denser-looking hair for men and women.




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