Anti-Aging

Biotin for beautiful hair

12 August 2023
Sophie de Boer

Beautiful and healthy hair has always been a symbol of youth and vitality. From shiny locks to strong, lush manes, we all strive for beautiful hair. But did you know that a simple vitamin like biotin can play a crucial role in promoting the health and beauty of your hair?

In this article, we explore how this nutrient can help you achieve your desired hairstyle.

What is biotin?

Biotin, also known as Vitamin B7 or Vitamin H, is a water-soluble vitamin that is part of the B-vitamin complex. It plays a crucial role in various metabolic processes in the body, including the conversion of nutrients such as carbohydrates, fats, and proteins into energy. Biotin is essential for the health of the skin, nails, and hair because it is involved in the production of keratin, a structural protein that forms the basis of these tissues.

Although biotin is naturally present in many foods, such as eggs, nuts, seeds, avocados, mushrooms, and whole grains, it can also be taken as a dietary supplement for people who have difficulty getting enough biotin from their diet. Biotin supplements have become popular as a way to support the health of hair, skin, and nails, and are often promoted for their potential to make hair stronger, thicker, and shinier.

How does biotin work?

The biological mechanism by which biotin contributes to beautiful hair is primarily related to its role in the production of keratin, a structural protein essential for hair health. Keratin forms the structure of hair and is responsible for its strength, flexibility, and shine.

Biotin acts as a co-enzyme in various enzymatic reactions involved in the production of keratin. It activates specific enzymes that convert amino acids, such as cysteine, into keratin, resulting in the production of new hair cells. Cysteine is an amino acid that is a key component of keratin, and the presence of sufficient biotin is essential for its synthesis.

Moreover, biotin promotes a healthy scalp by regulating sebum production. Sebum, a natural oily substance produced by the sebaceous glands in the scalp, helps to hydrate and protect the hair from drying out. A lack of biotin can lead to disrupted sebum production, which can result in a dry, itchy scalp and brittle hair.

By supporting keratin production and promoting scalp health, biotin can contribute to stronger, thicker, and shinier hair.

Studies and evidence

A study published in the "Journal of the American Academy of Dermatology" (Dubin & Goldberg, 1989) investigated the effectiveness of biotin in treating alopecia, a condition that causes hair loss. The results showed that biotin supplementation could improve hair growth in patients with alopecia.

Another study conducted by Colombo et al. (1990) examined the impact of biotin on brittle nails and split nail ends. The findings of this study suggested that biotin supplementation could improve the structure of nails and increase nail strength.

Furthermore, a study published in the "International Journal of Trichology" (Trüeb, 2016) suggested that biotin deficiency could be associated with hair loss. The study found that women who complained of hair loss had lower serum biotin levels, implying that biotin supplementation could potentially help stimulate hair growth.

A review published in "Skin Appendage Disorders" (Patel et al., 2017) evaluated several studies investigating the use of biotin for hair loss. The findings suggest that biotin may be a potential remedy for improving hair condition and reducing hair loss.

How much biotin should you take and is it safe?

The recommended daily allowance (RDA) for biotin for adults varies, but generally, a dose of about 30 to 100 micrograms (mcg) per day is considered sufficient for maintaining good health of hair, skin, and nails.

In terms of biotin supplements, doses of 5 to 10 mg (5000 to 10000 mcg) per day are often recommended for those specifically aiming to improve the health of their hair, skin, and nails. However, it is important to note that higher doses do not necessarily yield better results.

Biotin is generally considered safe when used in recommended doses. Because it is a water-soluble vitamin, excess biotin is excreted through urine, making it less likely to accumulate in the body and cause toxicity. However, as with any dietary supplement, it is important to follow the recommended dosages.

Conclusion

In conclusion, biotin is an essential vitamin that plays a significant role in maintaining the health of hair, skin, and nails. As a key substance in the production of keratin, the structural protein of hair, biotin can contribute to stronger, thicker, and shinier hair. And who knows, with a little help from biotin, you might just experience those iconic hair-flipping moments.

References

1. Patel, D. P., Swink, S. M., & Castelo-Soccio, L. (2017). A Review of the Use of Biotin for Hair Loss. Skin Appendage Disorders, 3(3), 166–169.

2. Trüeb, R. M. (2016). Serum Biotin Levels in Women Complaining of Hair Loss. International Journal of Trichology, 8(2), 73–77.

3. Hochman, L. G., Scher, R. K., & Meyerson, M. S. (1993). Brittle nails: response to daily biotin supplementation. Cutis, 51(4), 303–305.

4. Gray, J. (2019). The Truth About Biotin for Hair Growth.