Unlike other companies, we’ve provided one-on-one guidance, professional advice and custom-tailored solutions for our clients’ hair loss needs from the beginning. This personal touch is what made Hair Club successful then. And it’s still the secret to our success today. We continue to grow every year and have expanded to nearly 120 locations across the U.S., Canada and Puerto Rico.

Estrogen, the power player in women’s bodies, is your friend when it’s appropriately balanced. It makes you feel energized, helps stabilize your moods and contributes to a healthy sex drive. Yet too much estrogen, which can be caused by weight gain, perimenopause or toxicity from exposure to endocrine disruptors (which are rampant in our food, water and plastic products), can lead to thinning hair. During and after pregnancy, for example, estrogen levels peak and then dip, causing sudden hair loss for many women.


Giorgos Tsetis: Another reason Unilever was inspired to partner with us is that we really target three channels. Direct-to-consumer is one, then we target physician channels and salon channels; which are the hardest to convince. There's liability involved, so there's no doctor in the world who is going to recommend or endorse a product they don't believe in. We have about 350-400 physicians currently selling the product. A large amount of these doctors are thought-leaders or experts in the space, so they are known to speak about this issue on a world stage when it comes to new innovations. We also have each of the top 20 hair salons in the country carrying the product. There's a ton of celebrities who use the product as well. It is a premium product, but we've still made it affordable for people. When you look at other products on the market, our price point is comparable. We're also working on special programs for people in need who can't normally afford the product. If somebody is motivated, serious and really needs it -- we work to make sure they can get the product, and seek to serve as many people as possible.


Infestation with the mite D. folliculorum which inhabits the eyelashes is well known. Two species are known to inhabit human beings—D. folliculorum and Demodex brevis.[29] It might either be asymptomatic or may cause symptoms of blepharitis. Kemal et al. report an overall prevalence of 27.4% in their study group.[88] Gao et al. have reported a 100% prevalence of the mite when there is cylindrical dandruff.[29] Patients with demodicosis can develop madarosis.[29]
Over Plucking: I know the temptation of tweezing your eyebrows when you don’t want to endure the pain of threading. But when you pluck your eyebrow hair, you’re pulling it out from the follicle and essentially damaging it. And repeatedly plucking your hair eyebrow hair can permanently damage your follicles over time and prevent them from producing new hair.
Lichen planopilaris and frontal fibrosing alopecia inflammatory conditions, in which the inflammation destroys the hair follicle, can cause a scar or permanent hair loss (usually present as red patches with redness and scale around each hair follicle). In the very advanced stages, they may appear as smooth, bald patches where the hair follicles have been destroyed. Androgenetic hair loss is another non-scarring type. The most common type of hair loss, it is due to the complex interplay of genes, hormones, and age.
Male pattern hair loss has been established as androgen-dependent because it is associated with changes in the androgen receptor and responds to antiandrogen therapy (Ellis et al., 2002). With FPHL, genes that encode aromatase, which converts testosterone to estradiol, are also implicated (Yazdabadi et al., 2008, Yip et al., 2009). The process of androgen biosynthesis is depicted in Figure 1.

It is perfectly normal for people to shed 50 to 100 hairs per day. This generally doesn't cause noticeable thinning of scalp hair because new hair is growing in at the same time that hair is shedding. However, hair loss occurs when this hair growth cycle and shedding is disrupted or when the hair follicle becomes destroyed and replaced with scar tissue. Female pattern hair loss (androgenetic alopecia) is the most common form of hair loss in women. This occurs gradually and is caused by genetics (from either side of the family), age, and the action of a specific male hormone, dihydrotestosterone (DHT). This hormone is found in lesser amounts in women and it preys on the hair follicles, preventing them from receiving vital nutrients for proper hair follicle growth, leading to the hairs shrinking, and resulting in a shorter lifespan. Interestingly, DHT does not need to be elevated to generate hair loss. Estrogen, when lowered as commonly seen in menopause, creates a change in the ratio of male to female hormones, giving an edge to these male hormones. Compounded with the sensitivity of DHT to the hair follicles, heredity can affect the age at which a woman begins to lose her hair, as well as the rate of hair loss and the extent of baldness. 
Thallium poisoning should be suspected in any patient manifesting nervous system and gastrointestinal symptoms along with alopecia. The hair loss affects the scalp, periocular hair, limbs, and sometimes the axillae. Examination of the hair roots under a microscope using polarized light shows distorted anagen roots and several black zones in continued poisoning.[118]
Another reason that you have thinning eyebrows might be low thyroid (which is called hypothyroidism. The thyroid gland controls the rate of use of energy sources, protein synthesis by producing thyroid hormones. I the thyroid gland does not produce enough hormones, you might feel tired, freeze in the cold, gain weight or lose your hair. The most common cause of hypothyroidism is iodine deficiency.

Another cause of eyebrow hair loss is genetic predisposition. Many patients naturally have thinner eyebrows that run in their family. This is one of the biggest reasons patients seek our services. Medical conditions such as hypothyroidism, eczema, and alopecia areata (spot baldness) can also lead to brow hair falling out. It’s important to determine the cause of your condition to find an effective treatment.
But there’s load of hope! Just know it takes time and first and foremost it takes knowing the cause of the hair loss. That’s the only way to get on top of the issue. The type of hair loss you have (all over, patchy, thinning, losing only at temples, lack of new hair growth after shedding, etc.) points to the underlying cause of your shedding locks. So always start there.
Hair loss is one of the most irritating and worrisome issues anyone would ever have to meet with. It is obvious that there are various reasons which may cause hair loss in individuals. One of the causes of hair loss can be a low level of estrogen hormone. There is a connection between estrogen and hair loss. In this current article, we will talk about if low estrogen can cause hair loss and also know of ways to prevent it. Hope this would be a beneficial read for you.
Before you start hormone replacement therapy, it's important to talk to your doctor about the possible risks and negative effects versus the benefits of HRT. If you're already at an increased risk for health conditions like heart disease, cancer, and blood clots, HRT may not be the best hair loss treatment for you. If you are prescribed HRT, it important to take the lowest doses that are effective, and to only take the drugs for the shortest amount of time needed to control symptoms.
*Photograph used with permission of the Journal of the American Academy of Dermatology. This photograph was published in the Journal of the American Academy of Dermatology, Vol. # 60, Gathers RC, Jankowski M, Eide M, et al. “Hair grooming practices and central centrifugal cicatricial alopecia,” 660-8. Copyright Elsevier (2009). Journal of the American Academy of Dermatology.   
Hair loss on the eyebrows can be partial where the hair falls off in patches or the eyebrow thins and shortens abnormally. It may occur on one side or both sides. It can also be complete where all the hair on one or both eyebrows are lost. These patterns of eyebrow hair loss can give some indication of the underlying cause even when there are no other symptoms. Some of these conditions may be specific to the eyebrows (the hair follicles and skin in that region) or can be an extension of problems affecting surrounding skin like the face, forehead or scalp.

I can't tell you how many women come into my office fretting about the fact that they've over-plucked. While this is certainly a possibility (plucking the eyebrows damages the hair follicle, and with repeated plucking, the follicle can get damaged to the point that it can no longer produce a hair), there are actually a number of both external and internal causes and conditions that can lead to temporary or permanent loss of eyebrows.


Most of us look at the eyebrows as a patch of hair that has an aesthetic purpose and it is often shaped for cosmetic purposes. Although the exact purpose of the eyebrows is not conclusively understood, it is believed to be prevent water or sweat from falling on to the eyes itself. For most people its function is of little concern compared to its cosmetic purpose. As with hair anywhere on the body, eyebrow hair and the follicles from where it arises can be prone to the same diseases and disorders which may lead to hair loss..
Eyebrow loss, also known as superciliary madarosis, can occur with a variety of medical conditions. Madarosis can affect one or both eyebrows with partial or complete hair loss. Infections, chronic skin disorders, hormone disturbances, autoimmune diseases and medications are among the many medical reasons for eyebrow loss. In most cases, identification and treatment of the underlying condition leads to regrowth of the eyebrows. Permanent eyebrow loss can occur with disorders that permanently damage the hair follicles.

The dermatologist also will carefully look at your scalp and hair. During an exam, the dermatologist may pull on your hair. Sometimes a dermatologist needs to pull out a hair to get the necessary evidence. And sometimes a dermatologist needs to look at the hair on the rest of your body to see whether there is too little or too much hair in other areas.
Hypoproteinemia[71] causes loss of hair due to premature onset of telogen. Loss of eyebrow hair has been reported due to chronic zinc deficiency in a patient receiving only parenteral nutrition for 2 months.[26] Acrodermatitis enteropathica is an inherited disorder of zinc deficiency which shows loss of eyebrows and lashes in addition to cutaneous manifestations.[72,73] Biotin deficiency can result in encephalopathy, neurological disorders, skin desquamation, and loss of eyebrows and eyelashes.[74] Iron deficiency may be a possible cause for diffuse telogen hair loss; its exact role however is subject to speculation.[75]
Optimal levels of estrogen help to grow full thick hair, while low estrogen levels lead to thin and stalled hair growth, which eventually leads to hair loss. Through the years, a women will go through various cycles of highs and lows in estrogen levels. Puberty is typically associated with high estrogen levels as a woman starts to cycle through menstruation. Pregnancy typically increases hormone production, but once the baby has been delivered the mother can experience a drop in estrogen levels, which can result in thinning and loss of hair. Typically, this corrects itself as the woman's body heals and hormonal regulation returns to normal.  The largest decline in estrogen levels is during menopause. Estrogen is secreted through the ovaries and adrenal glands. When a woman hits menopause, the ovaries’ estrogen production is significantly diminished, which puts an excess burden on the adrenals to produce it. However, as the adrenals are typically overburdened due to stress, symptoms of menopauses like hair loss and hot flashes occur prematurely and excessively for some. Nourishing the body and balancing stress levels will support gentle and graceful transitions.   

Eyebrows frame your face and play an important role in your facial appearance and expressions. If the hair in your eyebrows starts falling out, you are sure to see a difference in your appearance, which you may want to rectify. Many conditions can cause eyebrow loss.[1] However, you can usually take steps to reverse the effects, such as eating a healthy diet and adjusting your beauty routine or lifestyle to account for the natural aging process.
Furthermore, Penn dermatopathologists developed an even more advanced method called the HoVert technique for diagnosing hair loss and other disorders from a scalp biopsy. The technique uses a unique horizontal and vertical testing approach that provides a greater amount of information to the referring dermatologist than standard industry longitudinal scalp biopsies.

There is pilosebaceous inflammation[45] with both scarring and non-scarring alopecia depending on the degree of inflammation. Most commonly, there is involvement of the head and neck, though widespread involvement is also seen. Eyebrow loss is a prominent finding and may be the presenting symptom when the eyebrow region is involved in the acute benign form of follicular mucinosis.[46]
Madarosis has also been described in phthiriasis of the eyelid. Phthiriasis palpebrarum is the term used to denote infestation of the eyelashes by the pubic louse or Phthirus pubis, also known as crab louse. The parasite is usually transmitted by sexual contact or through fomites. Heavy infestation may result in involvement of axillae, eyebrows, and scalp. When eyebrows and lashes are involved, blue-gray macules or maculae caeruleae may be found on the shoulders, arms, and trunk.[89] The louse can be identified under the microscope as having a wide body and strong second and third pair of legs.[90]
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I can't tell you how many women come into my office fretting about the fact that they've over-plucked. While this is certainly a possibility (plucking the eyebrows damages the hair follicle, and with repeated plucking, the follicle can get damaged to the point that it can no longer produce a hair), there are actually a number of both external and internal causes and conditions that can lead to temporary or permanent loss of eyebrows.
Low iron and low B12 can arise from a variety of causes including autoimmunity, poor intake, depletion due to medications (i.e. antacids) or bad digestion and are common causes of hair loss. But other common nutrient deficiencies can arise as part of a less than stellar diet low in zinc, protein (especially the amino acid lysine) or a deficiency of vitamin B6 (a very common issue with women taking hormones like the birth control pill). Low vitamin D has also been linked to excessive hair loss as has excessive vitamin A intake (less common.)

There is some evidence of a link between baldness and prostate cancer and other diseases. Harvard Medical School reports that men with vertex baldness have 1.5 times more of a risk of developing prostate cancer than men without bald spots. The risk of coronary artery disease is also more than 23 percent higher in men with vertex bald spots. Investigations are ongoing as to whether there is a link between DHT levels and metabolic syndrome, diabetes, and other health conditions.

 Because too much insulin (which is released by the pancreas in large amounts when we consume foods high in sugar or refined flour) signals the ovaries to produce more testosterone, and because an overload of testosterone increases the likelihood that our bodies may make more of the hair-thinning hormone DHT, work to keep blood sugar steady by eating fiber-rich whole foods.  In addition, the Saw Palmetto herb has shown promise for its ability to block the conversion of testosterone into DHT, so it may help androgen-related hair loss. To date, research on saw palmetto for hair loss is limited, but the research that has been done is promising.


Trichotillomania is common and 3-5 % of the world pull out their own eyebrows due to underlying psychological factors. For some, the pulling is temporary and for others is a chronic condition. Treatment of the underlying psychological factors (stress, depression, anxiety, obsessive compulsive disorder) can lead to improvement. Hair transplants are not an options if the patient is actively pulling his or her eyebrows
If you’re experiencing hair loss, topical treatments like minoxidil (Rogaine) and others tend to only be partially effective, if they are effective at all; they don’t address the root causes of hair loss; they target androgenic alopecia (which only accounts for some cases of hair loss); and they come with a host of unpleasant side effects—side effects that can worsen the aesthetic problem you were hoping to fix. Rogaine can cause hair to grow in different colors and textures than the surrounding hair and can cause unwanted hair to grow on your cheeks and forehead.

When this process is disrupted you end up with thinner hair, increased hair loss, a failure to regrow new hair and all in all a super sad experience! No one love losing their hair and it’s such a huge source of upset for women I work with but I’ll be honest, it is often the last thing to change as we work through getting your hormones and metabolism more balanced. It’s simply not your body’s priority.


At Hair Club, you can be part of a well-established, stable company with more than 40 years of success. We are the industry leader in providing hair loss solutions. Our company culture is fun, fast-paced, empathetic and comes with a conscience. Not only do we make a difference in the lives of our clients every day, we also contribute to the community locally through our charitable and volunteer programs. If you’re enthusiastic, motivated and confident, we’d love to talk to you about joining our team of hair restoration professionals.
To prove the fact that this does not happen on your scalp alone, Everyday Health notes, “too much thyroid hormone, the hair on your head can become fine, with thinning hair all over the scalp. When there is too little of this hormone, there can be hair loss, not just on the scalp, but also anywhere on the body”. This proves patients with underactive thyroid (low thyroid) can have their eyelashes and eyebrows falling off.

Estrogen, the power player in women’s bodies, is your friend when it’s appropriately balanced. It makes you feel energized, helps stabilize your moods and contributes to a healthy sex drive. Yet too much estrogen, which can be caused by weight gain, perimenopause or toxicity from exposure to endocrine disruptors (which are rampant in our food, water and plastic products), can lead to thinning hair. During and after pregnancy, for example, estrogen levels peak and then dip, causing sudden hair loss for many women.
Trichotillomania is a hair pulling disorder associated with anxiety, stress, depression, boredom and frustration. It is where a person manually removes hairs with their finger, either a few strands throughout the day or sometimes many strands at one time during an emotional outburst. This behavior is usually a means of coping with stress or emotional turmoil. However, it can sometimes become a habit that is difficult to break. The eyebrows is a commonly targeted area as is the scalp.
See a dermatologist for itchy skin or rashes around your brows. These patches may indicate a skin infection or interaction with a new beauty product or environmental trigger. You could also have inflammation from dermatitis or psoriasis.[32] These conditions don’t actually cause hair loss, but they can lead to it if you rub and scratch the affected areas.
Tames and Goldenring described a case of bilateral loss of eyebrows and eyelashes in a patient with AIDS-related complex who had smoked crack cocaine. This has been attributed to hot vapors during the process of smoking, and which therefore caused singeing of the brows and lashes. There was a complete reversal once the patient abstained from cocaine.[93]
Because there are a number of different factors that can contribute to hair loss, it’s best to ask your doctor for a few different tests. I recommend checking: fasting glucose, iron levels and complete blood count (which can determine if you have anemia), as well as thyroid, estrogen and testosterone levels. These assessments should give you a better understanding of what hormonal issues may be at the root of your problem.
There is pilosebaceous inflammation[45] with both scarring and non-scarring alopecia depending on the degree of inflammation. Most commonly, there is involvement of the head and neck, though widespread involvement is also seen. Eyebrow loss is a prominent finding and may be the presenting symptom when the eyebrow region is involved in the acute benign form of follicular mucinosis.[46] 

Cyproterone acetate works in several ways. It not only competitively blocks DHT from binding to its receptors at target tissue (Gilman et al., 1990), but it is also a progestogen that lowers testosterone levels by decreasing the release of luteinizing and follicle-stimulating hormones through pituitary-mediated supression (Gilman et al., 1990, Varothai and Bergfeld, 2014). An open intervention study of 80 women who received treatment with spironolactone (200 mg daily) or cyproterone acetate (50 mg daily or 100 mg for 10 days per month if premenopausal) showed that three of four patients demonstrated an improvement or stabilization of their disease with no difference of effect between the therapies received (Sinclair et al., 2005).
Hypoproteinemia[71] causes loss of hair due to premature onset of telogen. Loss of eyebrow hair has been reported due to chronic zinc deficiency in a patient receiving only parenteral nutrition for 2 months.[26] Acrodermatitis enteropathica is an inherited disorder of zinc deficiency which shows loss of eyebrows and lashes in addition to cutaneous manifestations.[72,73] Biotin deficiency can result in encephalopathy, neurological disorders, skin desquamation, and loss of eyebrows and eyelashes.[74] Iron deficiency may be a possible cause for diffuse telogen hair loss; its exact role however is subject to speculation.[75]

If you’ve undergone chemotherapy recently, you know the effects that it has on your hair, including your brows and lashes. First of all, I want to point you to this awesome resource by FairyHairs (click here), that shows in intervals, with pictures, what you can expect with regrowing your hair after chemo (Thank you, Jenny Mealy!). The article also includes ways to regrow your hair after chemo. 

If you have any more concerns about licorice, just remember that licorice candies are a Dutch treat, and overseas, plenty of Dutch people are consuming the stuff on a regular basis with no ill effects. In moderation, this may be an effective (and tasty) way to raise your estrogen levels. While you are at it, you can reduce any heartburn problems you happen to have.

Trichotillomania is a hair pulling disorder associated with anxiety, stress, depression, boredom and frustration. It is where a person manually removes hairs with their finger, either a few strands throughout the day or sometimes many strands at one time during an emotional outburst. This behavior is usually a means of coping with stress or emotional turmoil. However, it can sometimes become a habit that is difficult to break. The eyebrows is a commonly targeted area as is the scalp.
Changing the shape, thickness and length of the eyebrow is a commonly practiced beauty technique. Some people even remove the eyebrow entirely only to replace it with a pencil-drawn mark (eyebrow pencil). As with any part of the body, repeated irritation can eventually lead to hair loss. Sometimes this is due to manual trauma, chemicals from cosmetics or even infections that arise when breaks in the skin occur. While eyebrow modification will not stop as a commonly practised beauty technique, it should at least be minimized.

To prove the fact that this does not happen on your scalp alone, Everyday Health notes, “too much thyroid hormone, the hair on your head can become fine, with thinning hair all over the scalp. When there is too little of this hormone, there can be hair loss, not just on the scalp, but also anywhere on the body”. This proves patients with underactive thyroid (low thyroid) can have their eyelashes and eyebrows falling off.


Eyebrow hair loss is an unfortunate happening to many people since eyebrows help in giving your face a frame and charming looks. Imagine how you would look like without prominent features on your face such as eyebrows. You can see how funny each of the celebrities with  on someone’s face. We are not talking about people who are born with naturally few eyebrows or . If you are suffering from other common skin disease such as seborrhea, contact dermatitis, psoriasis among others, expect to suffer from brow hair losses.

If you’ve undergone chemotherapy recently, you know the effects that it has on your hair, including your brows and lashes. First of all, I want to point you to this awesome resource by FairyHairs (click here), that shows in intervals, with pictures, what you can expect with regrowing your hair after chemo (Thank you, Jenny Mealy!). The article also includes ways to regrow your hair after chemo.

When you choose dōTERRA®, you are choosing essential oils gently and carefully distilled from plants that have been patiently harvested at the perfect moment by experienced growers from around the world for ideal extract composition and efficacy. Each dōTERRA essential oil is also carefully and thoroughly tested using the strict CPTG Certified Pure Therapeutic Grade® quality protocol.

Complete Belgravia's online consultation if you are unable to visit one of our London clinics. The questionnaire should take no more than 10 minutes to complete and will provide our hair loss specialists with all the information required to recommend an effective course of home-use treatment. For those who live in or around London, we always recommend a clinical consultation.
Reduce stress. When you are stressed, your body starts shutting down processes that aren’t necessary for survival. This shutdown can occur with physical stressors, like surgery or an illness, and emotional stress, which often manifests as physical symptoms. Loss may occur up to three months after the stressful event and may take another three to grow again.[24]
Testosterone replacement is becoming popular for men. Cotsarelis warns that this may accelerate hair loss. Propecia might help -- but because it prevents testosterone breakdown, it might affect the dose of male hormone replacement therapy. Cotsarelis warns men taking both Propecia and testosterone replacement to make sure their doctor carefully monitors their testosterone levels.
Hormones are cyclical. Testosterone levels in some men drop by 10 percent each decade after thirty. Women's hormone levels decline as menopause approaches and drop sharply during menopause and beyond. The cyclic nature of both our hair and hormones is one reason hair loss can increase in the short term even when you are experiencing a long-term slowdown of hair loss (and a long-term increase in hair growth) while on a treatment that controls hair loss.
In extreme cases, such as disordered eating and anemia, an iron deficiency may be to blame for thinning brows. “Even if you don’t have anemia, and you have low levels of stored iron, that could contribute to hair loss,” says Rajani Katta, M.D., a dermatologist and clinical assistant professor of medicine at Baylor College of Medicine, who studies the link between nutrition and hair loss. Iron is found in meat, fish, and other animal products, plus beans and legumes, so vegans and vegetarians might be more likely to be low in iron. Your derm can do a ferritin blood test to check your iron levels. But don’t start an iron supplement without medical recommendation. Too much iron can also have negative effects, says Dr. Katta.
It is known that during pregnancy, because of an increased level of estrogen, there is a tremendous growth of new hair. However, during menopause it is noticeable that the reduced level of estrogen hormone tends to cause hair loss. When the estrogen hormone levels tend to drop, the hair follicles fall under the influence of the male sex hormone or the testosterone, which cause the shortening of the growth phase of hair. Subsequently there is a noticeable hair loss. This hair loss caused due to the drop down of estrogen levels may cause patchy hair loss or complete baldness.
Hansen's disease, also known as leprosy, is an infection of the skin and nerves caused by the bacterium Mycobacterium leprae. The disease often affects the skin of the eyebrow region, leading to loss of sensation and permanent loss of the eyebrow hairs. There are numerous other rare and uncommon causes of eyebrow hair loss, including vitamin A toxicity, nutritional disorders and other dermatological disorders. If you experience loss of eyebrow hair, see your doctor to evaluate the cause and to discuss a treatment plan. 

There is also a different in the form of 5AR enzyme (5 alpha reductase) found on the facial hair follicles vs. the scalp hair follicles. This enzyme converts testosterone into that more problematic DHT. Type I DHT is found in sebaceous glands on the face and genital area whereas Type II is found in hair follicles of the scalp. Type II DHT is typically more of a problem in men, but Type II is increased in disorders with high testosterone like PCOS.
But let’s be real: Brow loss is completely natural. Your brows have a growth cycle and they phase through growth (anagen), recession towards rest (catagen), and resting (telogen). Your brow hairs try not to all cycle at the same time, but unfortunately we get caught in certain weeks or months where more of our brow hairs are missing than before. Just be patient; they’ll come back. And if you need a boost, don’t be a stranger.
MICHAEL REED, MD: Over-the-counter minoxidil, which is the brand Rogaine, is FDA approved. It's been shown to be effective in scientific studies. Propecia is the new drug on the block, and that probably is more effective. It's a pill that you take once a day, and that has been shown to slow down hair loss and grow hair in a significant number of individuals. Most of the other preparations that are heavily advertised or marketed are not proven to be effective.
The hormonal process of testosterone converting to DHT, which then harms hair follicles, happens in both men and women. Under normal conditions, women have a minute fraction of the level of testosterone that men have, but even a lower level can cause DHT- triggered hair loss in women. And certainly when those levels rise, DHT is even more of a problem. Those levels can rise and still be within what doctors consider "normal" on a blood test, even though they are high enough to cause a problem. The levels may not rise at all and still be a problem if you have the kind of body chemistry that is overly sensitive to even its regular levels of chemicals, including hormones.

So, if you have a similar paranoia—fear not! Losing strands is totally normal. But Dr. Wexler is quick to add that things like over-tweezing (it causes scarring to the follicles), waxing, severe weight-loss, stress, excessive touching, hormonal changes, and auto immune disease can cause irregular brow hair loss. If you believe your case may be extreme, it's best to see a specialist. 

Dozens of other causes of eyebrow loss are also possible including a variety of infectious, autoimmune and inflammatory conditions. Consultation with a dermatologist or hair transplant surgeon is recommended. I strongly advise consulting a dermatologist before proceeding to hair transplantation for women over 40 with new onset eyebrow hair loss after age 40.
Your doctor might also suggest the prescription pill finasteride, sold under the brand name Propecia and also in generic versions. Although the drug is not federally approved for use in female patients, some doctors have observed good results in postmenopausal women. But women who are planning to have children should not take this drug because it can cause birth defects.
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