Unraveling the Myths and Truths About Hair Loss: A Comprehensive Guide


Hair loss is a widespread concern that affects millions of people worldwide. Despite its prevalence, there are numerous misconceptions surrounding the causes and treatments of hair loss. In this comprehensive guide, we'll dive into the latest research and findings to separate fact from fiction, shedding light on the true culprits behind this distressing condition.

The Hormonal Basis of Hair Loss:

A groundbreaking study by J B Schmidt titled "Hormonal basis of male and female androgenic alopecia: clinical relevance" sheds new light on the hormonal factors contributing to hair loss (1). The study evaluated a broad range of hormones in both male and female patients with androgenetic alopecia (AGA), including androgens, estradiol (E2), cortisol (F), and the hypophyseal hormones LH, FSH, and prolactin (PRL).

The findings revealed a significant elevation of F in both male and female AGA patients compared to controls, pointing to the adrenal glands as a contributing factor in AGA. Additionally, the study observed exacerbated AHA in periods of increased stress, confirming the role of stress in hair loss.

Interestingly, the study found a significant elevation of androstenedione in male AGA patients, highlighting the importance of androgen metabolism in male hair loss. The mainly peripheral activity of this hormone and elevated E2 levels in males stress the importance of androgen metabolism, especially at the peripheral level.

Furthermore, the study demonstrated significant hypophyseal hypothyroidism in female AGA patients, as evidenced by additional TRH tests. This finding implies that taurine might strongly work against hair loss when used in combination with other commercially available anti-alopecia agents.

Debunking the Testosterone and DHT Myth:

While testosterone and DHT are often blamed for hair loss, the study by J B Schmidt challenges this notion (1). Surprisingly, the study found that 50% of women experience "male pattern baldness" over their lifetimes, despite having significantly lower levels of DHT compared to men. The real culprits behind hair loss are often overlooked factors such as high estrogen levels, chronic stress, adrenal overactivity, elevated prolactin, and low thyroid function.

The Role of Environmental and Lifestyle Factors:

While genetics play a role in hair loss, environmental and lifestyle factors can significantly influence the onset and progression of this condition. A groundbreaking study by James Gatherwright, M.D. and colleagues, titled "The Contribution of Endogenous and Exogenous Factors to Male Alopecia: A Study of Identical Twins," highlights the importance of non-genetic factors in hair loss (2). The study found that stress, alcohol consumption, smoking, low testosterone levels, and excessive exercise were associated with increased hair loss in identical twins. This research underscores the significance of addressing lifestyle factors in the battle against hair loss.

The Hidden Dangers in Your Shampoo:

Many popular shampoos contain harsh chemicals that can damage your hair and contribute to hair loss. One of the most common culprits is sodium lauryl sulfate (SLS), a foaming agent that can be extremely damaging to your hair follicles. SLS can harm the protein structure of your hair, leading to breakage and hair loss (3). To protect your hair, it's crucial to be mindful of the ingredients in your hair care products and opt for gentler, SLS-free alternatives.

The Risks of Hair Loss Drugs:

While hair loss drugs like finasteride and minoxidil are often prescribed as solutions for hair loss, they come with potential risks and side effects. Since 2011, over 1,000 class action lawsuits have been filed against hair loss drug manufacturers, citing issues such as cognitive dysfunction, depression, mood disorders, erectile dysfunction, and infertility (4). These drugs may offer temporary relief from hair loss, but the potential long-term consequences should not be overlooked.

The Accumulation of Phthalates in Hair and Skin:

Phthalates, such as DEHP and DEP, are chemicals commonly found in personal care products and cosmetics. A study by Hans Wolff, Prof. Dr. med., and Ulrike Blume-Peytavi, Prof. Dr. med., titled "The Diagnosis and Treatment of Hair and Scalp Diseases," reveals that these harmful chemicals can accumulate in the skin and hair, causing damage to keratinocytes, the cells critical for hair production (3). Phthalates also trigger inflammation, further exacerbating hair loss. To minimize exposure to these endocrine-disrupting compounds, it's essential to choose products that are phthalate-free.

The Dangers of Finasteride:

Finasteride, a popular hair loss drug, has been trending recently. However, it's crucial to be aware of the potential side effects, which can include devastating impacts on libido, sexual performance, and even genital atrophy. While not everyone experiences these side effects, "post finasteride syndrome" is a real and serious condition that should not be overlooked (5). Before considering finasteride as a hair loss treatment, it's essential to weigh the potential risks against the benefits.

The Link Between Alcohol Consumption and Hair Loss:

Excessive alcohol consumption can contribute to hair loss in both men and women. Alcohol can elevate estrogen levels and increase stress, which can lead to telogen effluvium, a form of stress-induced hair loss (6). Additionally, alcohol dehydrates the body, making hair more brittle and prone to breakage and fallout. To promote healthy hair growth, it's important to moderate alcohol consumption and maintain adequate hydration.

Natural Supplements for Hair Health:

While many conventional hair loss treatments come with potential risks and side effects, certain natural supplements have shown promise in promoting healthy hair growth. A study by Hyemin Kim, Hyunsook Chang, and Dong-Hee Lee, titled "Simulative evaluation of taurine against alopecia caused by stress in Caenorhabditis elegans," found that taurine, an amino acid, was even more effective than finasteride in combating hair loss, without the associated side effects (5). Other supplements, such as biotin, saw palmetto, and essential fatty acids, have also demonstrated potential in supporting hair health (7).


Hair loss is a complex issue influenced by a myriad of factors, from hormonal imbalances to lifestyle choices and environmental exposures. The groundbreaking study by J B Schmidt highlights the significant role of hormonal factors, particularly the adrenal glands, androgen metabolism, and thyroid function, in the development of androgenetic alopecia. By understanding the true causes of hair loss and making informed decisions about the products we use and the habits we adopt, we can take proactive steps towards maintaining a healthy scalp and luscious locks. The key to addressing hair loss lies in a holistic approach that prioritizes overall health and well-being, rather than relying solely on quick fixes or potentially harmful treatments. With the right knowledge and care, it's possible to nourish your hair from the inside out and achieve the healthy, vibrant tresses you deserve.


J B Schmidt. "Hormonal basis of male and female androgenic alopecia: clinical relevance." PubMed, 1994.

James Gatherwright, M.D. et al. "The Contribution of Endogenous and Exogenous Factors to Male Alopecia: A Study of Identical Twins." PubMed, 2013.

Hans Wolff, Prof. Dr. med., and Ulrike Blume-Peytavi, Prof. Dr. med. "The Diagnosis and Treatment of Hair and Scalp Diseases." PubMed, 2016.

"Hair Loss Drug Lawsuits." Drugwatch, 2021.

Hyemin Kim, Hyunsook Chang, and Dong-Hee Lee. "Simulative evaluation of taurine against alopecia caused by stress in Caenorhabditis elegans." PubMed, 2010.

"The Link Between Alcohol and Hair Loss." American Academy of Dermatology Association, 2021.

"Natural Treatments for Hair Loss." Harvard Health Publishing, 2020.

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