You may have thought you were one up on men in the biological war but not only testosterone-strong males experience hair loss. In fact (and unfairly), up to 50% of women will experience some form of hair loss in their lifetime. You might have heard that pregnancy, the contraceptive pill and menopause are possible causes of hair loss, but are they really? Well, yes and no. An understanding of why female hair loss happens and what role estrogen plays in hair growth may help to make this answer clearer.
Ludwig Scale: This is the most common classification for female pattern hair loss. There are 3 stages (ranging from mild hair loss to extensive, severe widespread thinning) and in each stage hair loss occurs on the front and top of the scalp with relative preservation of the frontal hairline. Regardless of the extent of hair loss, only women with stable hair on the back and sides of the scalp are candidates for hair transplant surgery.
Contrary to popular belief, hair does not grow continuously but actually grows in cycles. It starts at the follicles which are embedded in the skin and the visible part, the shaft, is a consequence of active growth at the follicles over time. The living part of the hair in the skin has blood and nerve supply while the hair shaft is made up of dead cells and protein and does not have a blood or nerve supply. Therefore it can be easily cut without any bleeding or pain.

No one wants to lose their hair, but for a woman it is particularly distressing. While men can look perfectly presentable — even sexy — with their exposed scalp, no such options exist for the 30 million American women who grapple with thinning tresses. Dr. Maria Colavincenzo, a dermatologist at Northwestern University Feinberg School of Medicine, has a practice that specializes in preserving those precious strands — especially in cases of androgenetic alopecia, a hereditary condition that causes hair loss, mainly on the top and crown of the scalp. Without an appointment, she answered some of our questions:
The first thing you'd want to try is to talk to your doctor about stopping the medicine -- ask if there's a substitute. If you can't find a substitute for the medication and you must take it, then you could consider filling in your eyebrows. You can find brow products at any local drugstore. YouTube has many, MANY brow tutorials you could learn from.

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]
Amalie Beauty Inc. and its materials are not intended to treat, diagnose, cure, or prevent any disease. 
All material on Amalie is provided for educational purposes only. Always seek the advice of your physician or other qualified health care provider with any questions you have regarding a medical condition, and before undertaking any diet, exercise, or other health program.
Visit your doctor. First and foremost, you need to understand the cause of your thinning brows in order to know how to address them. Your doctor can check for underlying conditions like hypothyroidism, hormonal imbalance and vitamin deficiency. Your doctor can also point you in the right direction for products that can help regrow or mask thinning hair. Visit a dermatologist for targeted advice and cosmetic options that are available to you. 

Laser devices: Brushes, combs, and other hand-held devices that emit laser light might stimulate hair growth. These devices might make hair look more youthful in some people. Because the FDA classifies these products as medical devices, the products do not undergo the rigorous testing that medicines undergo. The long-term effectiveness and safety for these devices are not known.
Mistakenly thought of as a male disease, around 40% percent of women will suffer from some form of hair loss by the age of 50. A woman’s hair is an important part of her aesthetic make-up. It represents her style and taste, and frames her face while accentuating her best features. Unfortunately, most physicians don’t have answers or solutions for women who begin to lose their hair.  Plano, TX hair restoration surgeon, Dr. Joseph Yaker, understands that this can be extremely catastrophic to a woman’s self-confidence, body image and quality of life. Clinical studies have shown that psychiatric disorders such as depression and anxiety are more common in people with hair loss, especially women.
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.
 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.
Protein: When the body does not get enough protein, it rations the protein it does get. One way the body can ration protein is to shut down hair growth. About 2 to 3 months after a person does not eat enough protein, you can see the hair loss. Eating more protein will stop the hair loss. Meats, eggs, and fish are good sources of protein. Vegetarians can get more protein by adding nuts, seeds, and beans to their diet.
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.
Check for hypothyroidism. If you also notice unexplained weight gain, chronic fatigue, feeling depressed, or feeling colder than usual in low temperatures, your thyroid gland may not be producing enough hormones. You may also notice your periods getting heavier or becoming sporadic. Hypothyroidism is most common in women, especially over age 50, and it can be treated with a synthetic hormone.[31]
When compared with no treatment, patients who received ethinyl estradiol 50 μg and cyproterone acetate 2 mg with cyproterone acetate 20 mg on days 5 to 20 of the menstrual cycle for 1 year had a significant increase in their percentage of anagen hairs with trends toward a larger shaft diameter of full anagen hairs and a decreased number of hairs that were less than 40 microns (Peereboom-Wynia et al., 1989). A 12-month randomized control trial of 66 women compared treatment with topical minoxidil 2% plus an oral contraceptive (ethinyl estradiol 30 μg + gestodene 75 μg) with treatment with cyproterone acetate 50 mg plus an oral contraceptive (ethinyl estradiol 35 μg + cyproterone acetate 2 mg) and demonstrated that treatment with cyproterone was more effective in hyderandrogenic patients but otherwise less effective (Vexiau et al., 2002). Side effects of cyproterone acetate include weight gain, breast tenderness, and a decreased libido (Kelly et al., 2016). Hepatotoxicity and development of multiple meningiomas may occur when doses exceed 25 mg daily (Medicines and Healthcare products Regulatory Agency, 2009). Cyproterone acetate is used widely in Europe and Canada, either in an isolated form or in combination with ethinyl estradiol, but it is only available in the United States as an orphan drug for the treatment of hirsutism (Carmina and Lobo, 2003, Jurzyk et al., 1992, Kelly et al., 2016). Cyproterone acetate is classified as pregnancy category X.
*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.   

This plant is native to North America and has been used for centuries by indigenous people to treat menstrual and menopausal disorders. While modern research results are mixed, some studies do indicate that black cohosh can be effective as a treatment in menopause. While the research focuses on hot flashes and other symptoms of menopause that get more attention than hair loss, it follows that black cohosh could also help to improve hair growth when estrogen levels decline.
Low Level Laser Therapy (LLLT) is a non-invasive, non-surgical scientific approach to fighting hair loss. It is effective against multiple levels and types of hair loss including thinning hair, receding hair line, male and female pattern baldness and various scalp issues. LLLT has been rigorously tested for both safety and effectiveness for well over 30 years and has been in use in many countries throughout the world for over 30 years.
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.
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.
A small study published in 2002 found that applying topical onion juice to the scalp increased hair growth. Two groups of participants were asked to use topical treatments on their scalps twice each day for two months: one group was given onion juice to apply to their scalp. The other was given tap water. After six weeks, hair growth was observed in close to 90 percent of the participants who used onion juice (though the researchers noted that more men in the group than women experienced hair growth). In the tap water group, only 13 percent of the participants experienced hair growth (with no difference between the sexes.) The benefit from onion juice is thought to come from its high sulfur content. Sulfur is found in amino acids, which are the building blocks of proteins, which are needed for robust hair growth. Onion juice may also stimulate collagen production, which in turn stimulates hair growth.
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.

Interestingly, 40% of the genes causing male pattern baldness were located on the X chromosome. You inherit that chromosome from your mother. By analyzing all these genes, researchers could also make a “scorecard” which predicts what risk a man runs for experiencing hair loss based on his genes. The hope is that in the future, this could be refined and used to prevent early signs of hair loss.

The startup recently closed its Series A round of funding, with Unilever Ventures, the investment and private-equity vertical of the consumer goods company, stepping in as the lead investor. Unilever was introduced to Nutrafol through investment platform, CircleUp. The investment from Unilever Ventures, along with other strategic partners, will be used to advance research efforts, product development and expand within the medical, salon and e-commerce channels. With continued investment in research and clinical studies, Nutrafol is poised to take the lead in the fragmented multibillion-dollar global hair loss industry.
Also new is the HairMax Laser Comb. It's a red light therapy hairbrush-like device that increases circulation and the biological march that makes hair. It's only approved in men (though some women are using it) and in my experience, is not as good as minoxidil. But in one study, 45% of users reported improvement after eight weeks, and 90% saw improvement after 16 weeks.
Amalie Beauty Inc. and its materials are not intended to treat, diagnose, cure, or prevent any disease. 
All material on Amalie is provided for educational purposes only. Always seek the advice of your physician or other qualified health care provider with any questions you have regarding a medical condition, and before undertaking any diet, exercise, or other health program.
But, interestingly — and what most people don't initially realize — is that eyebrow hair loss is often a sign of an internal disease. The classic example of this is an under-active or over-active thyroid. Loss of the outer third of the eyebrow, in particular, is a characteristic sign of an under-active thyroid. Fortunately, thyroid conditions are easily treatable, usually with oral medications, but the medications generally have to be taken for life. The eyebrows should grow back, but there is always the possibility that they may not. The thyroid gland plays a huge role in our bodies, so it is important to have any thyroid issues treated.
Madarosis of non-scarring type is commonly seen in alopecia areata which is a hair-specific autoimmune disease associated with patchy loss of hair.[56] It presents as round or oval patches of non-scarring hair loss. Madarosis occurs as isolated involvement [Figure 2] or as a part of alopecia universalis.[57] When alopecia areata involves the eyelashes exclusively, there is rarely involvement of other parts of the body.[58] Alopecia areata can involve both the eyelids without scalp involvement also.[59] Short exclamation mark hairs are pathognomonic for alopecia areata.
Try out new hairstyles to disguise your thinning hair whilst you recover your hormonal balance. You may also want to consider a hair piece or clip-in extensions if your hair loss is very bad, but these should be used with care in order to prevent traction alopecia. You may also like to try using rollers or a hair volumizer, to add lift to your locks, or instantly hide thin patches with a good hair loss concealer.

Insulin, that helper hormone in charge of regulating blood sugar levels, also affects a number of different body processes, including fat storage, heart health and, you guessed it, hair growth. One study published in the European Journal of Cardiovascular Risk found that women with some markers of insulin resistance have a greater risk for androgenic alopecia (AGA), or female pattern baldness.


In this section, our Houston Hair Transplant Team discusses current trends in hair loss and restoration research with published experts. We choose our interviewees based on those who have had NIH or Medline indexed published medical research that is peer-reviewed. The list will be organized by country and then alphabetically by physician last name. Click on the name to read about the latest research in thinning hair and hair restoration from around world. We thank our specialists below for giving us the valuable time and sharing of insight. We are deeply grateful and honored to have had the privilege to get the insight provided by these world renown specialists
However, the effects of alopecia reach far beyond symptoms of depression and include anxiety, obsessions, dissatisfaction with one’s appearance, and low self-esteem (Al-Mutairi and Eldin, 2011, Dlova et al., 2016, Hunt and McHale, 2005, Schmidt et al., 2001). There can be significant disturbance in a patient’s social life because they may change their hair style, clothing, or avoid social meetings (Al-Mutairi and Eldin, 2011). One study reported that 40% of surveyed women described marital problems and 63% had career-related issues that they ascribed to their hair loss (Hunt and McHale, 2005). These effects seem to occur regardless of patients’ age, race, or degree of hair loss (Dlova et al., 2016, Hunt and McHale, 2005, Schmidt et al., 2001). Another study of more than 200 women found that this psychologic morbidity occurs with equal frequency in women whose hair is typically covered by a headscarf (Erol et al., 2012).
Postmenopausal frontal fibrosing alopecia, a variant of lichen planopilaris, is a distinct form of scarring alopecia which is described in postmenopausal women. It consists of a receding hairline with scarring associated with a partial or complete loss of eyebrows in most affected individuals. The loss of eyebrows may be the presenting sign; however, the hairline reveals evidence of perifollicular erythema on closer observation. Histologic features are identical to that of lichen planopilaris.[42]
Balancing your hormones is not an easy process, whether you are in perimenopause, menopause, or post-menopause. You may find that just one of these herbs is sufficient to do the trick, but in many cases you will achieve the best results by taking a combination of herbs. Start gradually and track your results carefully to make sure you are choosing the right products to balance and adjust your particular hormone profile.

There’s a reason why we’re the leading provider of hair loss solutions in North America. Trust. Many of our 1,100+ licensed cosmetologists and hair loss experts started where you are—as a client themselves. So we truly understand what hair loss feels like and what it takes to get your hair back. It’s why you can trust that we’ll walk you through every step of your hair restoration journey, from consultation and analysis to solution and maintenance. We’ll listen to you and make sure your Hair Club experience is everything you want it to be. We’re here for you, and that makes all the difference.


While these factors contribute to hair loss for any woman, it’s particularly dicey for those of us with PCOS because when the follicle is exposed to our elevated androgens such as DHT (di-hydro testosterone, an active metabolite of testosterone) it gets damaged. Whenever a cell is damaged it generates oxidative stress which further alters the androgen receptor in the follicle perpetuating the issue.
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Eyebrow thinning that manifests in irregular patches, especially accompanied by red and itchy skin, may indicate atopic dermatitis. This condition—commonly called eczema—can occur just about anywhere on the body and is usually hereditary. People with atopic dermatitis may be more sensitive to topical irritants, but eczema just from topical irritants is called allergic contact dermatitis or irritant contact dermatitis. While you wait on the appointment with your dermatologist, you can help ease eczema around the eyebrows by switching to mild soaps or a soap-free facial cleanser, and applying an intensive facial moisturizer within three minutes after bathing.
It is known that estrogen plays a great role in reducing bodily hair, in promoting the growth of the hair on your head, controlling height, reducing the muscle mass, promoting the breast growth, keeping the skin smooth, keeping away from wrinkles, regulating menstrual cycle in women, preventing fatigue, keeping away depression etc. From all these it can be known that estrogen hormone is important for the overall health of an individual. 

Thinning hair, noticeable bald spots, receding hair line, large clumps of hair showing up in your hair brush or shower drain, these are typically things you hear about from men, not women. More and more though, we are contacted by women who are experiencing hair loss who want to know if this is a sign of something wrong with their hormones and how they can fix the problem. Fortunately, hair loss is not a sign of infertility, but is a side effect of hormonal imbalance which can impact your fertility.
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.
Growth on Eyebrows – Some common growths on brow aresa such as warts or any unusual growth could hamper eyebrow growth. Skin growth cause a thick barrier that is shell like and it will make it impossible for eyebrows to penetrate them thus you will not have regrowth. Some of the common growths include moles, hemangiomas, seborrheic keratosis among many others.
Following your consultation at Sussex Trichology, Shuna Hammocks and her clinical assistant Kelly are able to sympathetically manage your concerns and guide you and your hair back to health. We are passionate about being a support to those most upset, any type of hair loss is frightening and aside from treating with your bespoke regimen at home, you may need to call, text or email on occasion to ‘check in’.
Some medications have side effects that include hair loss. Talk to your doctor if you are experiencing significant hair loss and you think that your medication might be the cause. Your doctor might be able to switch you over to another type of medicine without any reported side effects. Don’t stop taking your medications until you’ve spoken with your doctor, as this could be dangerous for your health.
The first step in treatment is to identify the cause of the hair loss. Then, treat it appropriately. If an internal cause is the culprit, it should be addressed — for example, thyroid medication for thyroid disease or supplements for a nutritional deficiency. External skin conditions are often treated with topical medications, and, once treated, the hair loss usually recovers. I often recommend Latisse as an adjunctive treatment. Though frequently associated with eyelash lengthening, it is a great option for thickening brows. In fact, people with brows that thin with aging (I typically don't see this in women under 50) may want to opt for Latisse.
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.
SOURCES: George Cotsarelis, MD, director, Hair and Scalp Clinic, University of Pennsylvania School of Medicine, Philadelphia. Andrew Kaufman, MD, assistant professor, department of dermatology, University of California, Los Angeles; medical director, Center for Dermatology Care, Thousand Oaks, Calif. Tom Barrows, PhD, director of product development, Aderans Research Institute Inc., Atlanta. Cotsarelis, G. and Millar, S.E. Trends in Molecular Medicine, July 2001; vol 7: pp 293-301. American Society for Dermatologic Surgery web site. American Academy of Facial and Reconstructive Plastic Surgery web site. American Hair Loss Council web site. Springer, K. American Family Physician, July 1, 2003; vol 68: pp 93-102. Hair Loss Help web site, "Interview with Dr. Ken Washenik from Bosley." Fuchs, E. Developmental Cell, July 2001: vol 1: pp 13-25.
Hair loss can occur either in acute or chronic hypervitaminosis A. Loss of eyebrows and eyelashes can occur in chronic hypervitaminosis A which can occur in a number of conditions, either due to enthusiastic overdosing or due to intentional prescription of high doses for diseases such as acne, retinal disorders with night blindness, and others.[116] The cutaneous manifestations include dry, rough, and scaly skin. Chronic hypervitaminosis A is also becoming increasingly common with use of retinoids for various skin disorders. Acitretin has been noted to cause a high incidence of diffuse hair loss.[117] Premature teloptosis may be a prime factor in hair loss induced by retinoids.[98]

*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.   
In your quest for perfectly maintained brows, you probably keep regular maintenance appointments on your calendar. Instead, you might want to embrace a more natural, hands-off approach. “The trauma inflicted on hair follicles during waxing, tweezing, and threading can lead to permanent follicular damage,” explains Dr. Umar. “Women who grew up in the height of the ’90s overplucked, pencil-thin brow trend have begun to notice the difficulty in growing thicker eyebrows after years of this habit.”
It is an impulse-controlled disorder characterized by compulsive plucking or breakage of hair.[91] The most frequent site of hair pulling is the scalp, but the eyebrows, eyelashes, and pubic hair may also be involved. Trichotillomania manifests in eyelashes and eyebrows as irregular patches of alopecia containing hairs of varying lengths. Inflammation, scarring, and atrophy are conspicuous by their absence. Patients often attempt to conceal their alopecia by cosmetological camouflage. In case of a diagnostic dilemma, histological features such as increased numbers of catagen hairs, pigment casts, and traumatized hair bulbs provide a clue.
For other women, the problem with estrogen dominance is that they’re also experiencing lower levels of progesterone relative to estrogen—and progesterone helps protect hair follicles from the hair-thinning effects of testosterone, DHT, and estrogen. Evidence suggests that progesterone may act as an aromatase inhibitor and other research suggests that the genes involved in aromatase activity are implicated in female hair loss.
Hair loss may also occur due to dieting. Franchised diet programs which are designed or administered under the direction of a physician with prescribed meals, dietary supplements and vitamin ingestion have become popular. Sometimes the client is told that vitamins are a necessary part of the program to prevent hair loss associated with dieting. From a dermatologists’s standpoint, however, the vitamins cannot prevent hair loss associated with rapid, significant weight loss. Furthermore, many of these supplements are high in vitamin A which can magnify the hair loss.
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