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Thyroid Disorders And Hair Loss

Thyroid dysfunction, a condition affecting the thyroid gland's proper functioning, can significantly impact various bodily functions, including metabolism, energy production, and the growth and development of tissues. One distressing symptom often associated with thyroid dysfunction is hair loss. This guide will explore the different types of thyroid dysfunction and their relationship to hair loss. It will also delve into the best anti-hair loss treatments for individuals with thyroid-related hair loss.

Types of Thyroid Dysfunction and Their Link to Hair Loss

1. Hypothyroidism (Underactive Thyroid):

Hypothyroidism occurs when the thyroid gland does not produce enough thyroid hormones, primarily thyroxine (T4) and triiodothyronine (T3). This imbalance can lead to a slowed metabolism and a range of symptoms, including fatigue, weight gain, and hair loss. Hair loss is a common symptom of hypothyroidism. Lower thyroid hormone levels can cause hair follicles to enter a resting phase, leading to hair thinning and shedding. The reduced metabolic rate can also affect hair strands' growth rate and strength.

2. Hyperthyroidism (Overactive Thyroid):

Hyperthyroidism arises when the thyroid gland produces an excess of thyroid hormones, causing the body's metabolism to accelerate. Common symptoms include weight loss, increased heart rate, and anxiety. Hair loss can also occur in individuals with hyperthyroidism. Hair loss in this condition is often more diffuse, affecting the entire scalp rather than leading to specific bald patches. The increased metabolic rate can disrupt the normal hair growth cycle, leading to more hair entering the shedding phase.

3. Hashimoto's Thyroiditis:

Hashimoto's thyroiditis is an autoimmune condition where the body's immune system attacks the thyroid gland, resulting in inflammation and eventual damage. Over time, this can lead to hypothyroidism and occasional hyperthyroidism periods. Like hypothyroidism, hair loss is a common symptom of Hashimoto's thyroiditis. The autoimmune attack damages the thyroid gland, leading to decreased thyroid hormone production and subsequent hair thinning and shedding.

4. Graves' Disease:

Graves' disease is another autoimmune disorder that causes the thyroid gland to produce excessive amounts of thyroid hormones, resulting in hyperthyroidism. Graves' disease can lead to diffuse hair loss, similar to hyperthyroidism. The overproduction of thyroid hormones disrupts the normal balance of the hair growth phases, leading to increased shedding.

Thyroid Dysfunction and its Influence on Eyelash and Eyebrow Health

Thyroid dysfunction can significantly impact the growth of eyelashes and eyebrow hair. In cases of hypothyroidism, where the thyroid gland is underactive and hormone levels are low, individuals may experience sparse, brittle, and slow-growing eyelashes and eyebrows. The reduced thyroid hormones can disrupt the hair growth cycle, leading to decreased growth and shedding. Specifically, in hypothyroidism, a person may notice hair loss in the outer third of the eyebrow, which is the thinnest part that points toward the ears.

On the other hand, hyperthyroidism, characterized by excessive thyroid hormone production, can also affect eyelash and eyebrow hair growth. In this condition, hair may become thin, weak, and prone to breakage due to accelerated metabolism.

Best Anti-Hair Loss Treatments for Thyroid-Related Hair Loss

Now that we understand the different types of thyroid dysfunction and their relationship to hair loss let's explore the most effective treatments for combating hair loss in individuals with thyroid-related issues:

1. Medical Interventions

Managing Hypothyroidism:

For individuals with hypothyroidism, addressing the underlying thyroid condition is crucial. Thyroid hormone replacement therapy, prescribed by an endocrinologist, can help stabilize hormone levels and reduce hair loss.

Managing Hyperthyroidism:

In cases of hyperthyroidism, managing the thyroid hormone levels through medications or radioactive iodine therapy can help control hair loss. Working with an endocrinologist to achieve a balanced thyroid hormone level is essential.

2. Topical Hair Regrowth Products

Minoxidil Topical Solution:

Minoxidil has proven to be a beneficial treatment for people experiencing hair loss related to thyroid dysfunction. For individuals with thyroid-related hair loss, minoxidil increases blood flow to the hair follicles, creating a conducive environment for hair growth. It revitalizes dormant hair follicles, stimulating the growth of thicker, healthier hair strands. Furthermore, minoxidil is suitable for both men and women, making it a versatile option for combating hair loss in individuals with thyroid conditions.

MDhair Regrowth Serum:

The MDhair Regrowth Serum contains DHT blockers and essential nutrients that nourish the scalp and hair follicles. It promotes hair regrowth and revitalizes dormant hair follicles.

The Benefits of MDhair Regrowth Serum:

  • Nourishing Ingredients: The serum's additional nutrients support scalp health, strengthen hair strands, prevent breakage, and improve overall hair texture.
  • Easy Application: The convenient applicator allows a precise and targeted application, ensuring the active ingredients reach the hair follicles effectively.
  • Non-Greasy Formula: The lightweight and non-greasy formula makes it suitable for daily use.
  • Visible Results: Many users report noticeable hair density and thickness improvements within a few months of consistent use.

3. Oral Hair Growth Products

MDhair Regrowth Supplements:

Specifically designed for individuals with thyroid-related hair loss, the MDhair Regrowth Supplements contain biotin, iron, zinc, antioxidants, and saw palmetto. This powerful blend supports hair strength, growth, and overall scalp health.

Benefits of the MDhair Regrowth Supplements:

  • Biotin for Hair Strength: Biotin supports the production of keratin, the protein-forming hair strands, improving hair strength and resilience.
  • Iron and Zinc for Hair Growth: These essential minerals combat hair loss by addressing deficiencies commonly associated with thyroid conditions.
  • Antioxidants for Scalp Health: Vitamins C and E protect the scalp and hair follicles from oxidative stress, promoting a healthy environment for hair growth.
  • Saw Palmetto for DHT Blockade: Saw palmetto inhibits the conversion of testosterone to DHT, reducing its negative impact on hair follicles.

The Effects of Biotin on Thyroid Levels Test Results:

People with thyroid dysfunction can take biotin. However, Biotin supplements can interfere with thyroid blood test results, leading to incorrect readings. High doses of biotin can create an illusion of excessive thyroid hormone levels when there actually isn't, potentially causing misdiagnosis or treatment errors. To ensure accurate results, it is generally necessary to discontinue taking biotin supplements three days before conducting a thyroid blood test. Don't forget to inform your doctor about your biotin usage before getting the test.

Marine Collagen Peptides

Marine collagen peptide powder can be a valuable addition to the hair care regimen for individuals experiencing thyroid-related hair loss. One of the key advantages of marine collagen peptides is their bioavailability, meaning they are easily absorbed and utilized by the body. This is especially important for individuals with thyroid issues, as their bodies may have difficulty absorbing nutrients efficiently.

Marine collagen peptides contain essential amino acids, such as proline, glycine, and hydroxyproline, which are building blocks for the proteins that make up hair strands. By incorporating marine collagen into their daily routine, individuals can ensure that their bodies receive an ample supply of vital amino acids to support the strength and structure of their hair.

In addition to supporting hair health, marine collagen peptides also benefit the overall appearance of the skin and nails. Collagen is known for its ability to promote skin elasticity and hydration, which can help individuals experiencing dryness or aging of the skin due to thyroid imbalances. Nails can also benefit from increased collagen production, strengthening the nail bed and leading to stronger, healthier nails.

Best eyelash serums for people with thyroid dysfunction-related eyelash thinning:

The MDhair Advanced Eyelash Serum is a dermatologist-formulated serum that combines active peptides, hyaluronic acid, biotin, and plant-based ingredients to restore and promote the regrowth of longer, thicker eyelashes. Results are noticeable in 2-4 weeks, and the serum is safe for daily use, free from toxins or hormones. Achieve the lashes you desire with this vegan, sulfate-free, alcohol-free, fragrance-free, and color-safe formula.

Best eyebrow serums for people with thyroid dysfunction-related eyelash thinning:

The MDhair Advanced Eyebrow serum combines active peptides, hyaluronic acid, biotin, and plant-based ingredients to nourish and strengthen hair follicles. Initial results may be visible within 2-4 weeks, with full results typically achieved within 3 months of consistent use. This serum is suitable for all skin types and is free of sulfates, alcohol, fragrances, and potentially harmful colors. Its vegan formula is gentle on the skin and eyebrows.


Hair loss can be a distressing symptom of thyroid dysfunction, but it can be managed effectively with the proper understanding and treatments. Different types of thyroid dysfunction lead to hair loss through varying mechanisms, and addressing the underlying thyroid condition is essential for effective hair loss management. Individuals can take proactive steps toward restoring hair health and embracing life with healthier, fuller hair by combining medical interventions with topical hair regrowth products like the MDhair Regrowth Serum and nutritional supplements such as MDhair Regrowth Supplements.


What is the function of thyroid hormones?

Thyroid hormones, produced by the thyroid gland, are among the most essential hormones in the body. Thyroid hormones regulate metabolic rate, control the heart, muscular and digestive system function, and are crucial to the development of the brain and bones.

Can thyroid disorders cause hair loss?

Hyperthyroidism is a condition in which the thyroid gland has excessive functional activity with high levels of thyroid hormones (T3 and T4) in the circulation. Low levels of T3 and T4 characterize hypothyroidism. Untreated thyroid dysfunction can cause hair loss. A hyperactive or hypoactive thyroid can cause dry, brittle, and thinning hair. When thyroid hormone levels are too high or too low, the active regrowth phase of the hair follicles becomes shorter, resulting in thinner and shorter hair strands.

What are the symptoms of thyroid-related hair loss?

For some people, an imbalance of thyroid hormones can cause sudden diffuse hair shedding, also known as telogen effluvium. In weeks, clumps of hair can be shed by the handful and clog shower drains. For others, the hair thins more gradually.

What are the effects of hyperthyroidism on the hair?

People with hyperactive thyroid glands tend to have thin, fine, oily hair and are more prone to hair loss.

What are the effects of hypothyroidism on the hair?

People with hypothyroidism can experience diffuse hair loss, early graying, and dry, brittle, and dull hair.

Which thyroid medications cause more hair loss?

In rare cases, hair loss can occur from taking carbimazole and propylthiouracil, medications used to treat certain thyroid disorders.

What is the best treatment for thyroid-related hair loss?

The first step to treating thyroid-related hair loss is to consult an endocrinologist to treat the root cause and balance thyroid hormone levels. The second step would be to implement a comprehensive hair regrowth routine with a combination of a medicated or plant-based scalp treatment solution, a high-quality treatment shampoo, and oral supplements.

How long does it take to see results?

After receiving proper treatment for your thyroid disorder and following a consistent hair regrowth routine, most people will see reduced hair shedding in 6-8 weeks, initial improvement in 3-4 months, and visible hair regrowth after 6-9 months.

What else can you do?

  • Check your blood iron and ferritin levels. Thyroid issues also cause low ferritin, which means less iron will be available to your hair follicles.
  • Ensure you are getting enough protein, as protein is one of the building blocks of hair. Collagen peptides are a good source of the amino acids needed for hair growth.
  • Try a multivitamin with biotin. Vitamins A, C, E, and B, zinc, copper, and CoQ10 can also contribute to hair health. Look for pharmaceutical-grade supplements specially formulated for people with hair loss, such as the MDhair Regrowth Supplements.
  • Tight hairstyles can damage the hair follicles. Try not to pull or twist your hair, and avoid tight braids, buns, or ponytails.
  • Do not brush wet hair. To detangle your hair when it's wet, use your fingers of a wide-toothed comb.
  • Regularly performing scalp massages may improve circulation and help you grow thicker, healthier hair.


Minoxidil 2% (For women)
Minoxidil 5% (For men)
Regrowth Serum
Regrowth Supplements
Marine Collagen
Advanced Eyebrow Serum
Advanced Eyelash Serum


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Comorbidity profiles among patients with alopecia areata: the importance of onset age, a nationwide population-based study.

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