Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
First, hair grows and gets longer in the anagen phase which can go on for several years. Then, during the ~10-day catagen phase, hair stops actively growing and separates from its follicle, which is what holds the hair in place beneath the skin. Finally, in the telogen phase, the follicle goes into rest mode for several months until the hair falls out. Then, the process starts anew.
Certain medical conditions call for treatments and surgeries that help to cure the ailment. While these treat your condition, the side effects of the treatments can often damage the hair follicles and cause rapid hair fall. Treatments like chemotherapy to treat cancer, steroids, and medication for typhoid, heart diseases, depression, etc. are known to be responsible for extreme hair fall to the extent of causing baldness. Here’s a list of drugs that list hair loss as a possible side effect:
Herbal hair supplements are designed to “supplement,” or work together with, a healthy diet, not replace it. However, it’s also important to recognize that the fast pace of life doesn’t always allow for making meals from scratch every day. If you find it hard to meet the recommended daily amounts nutrients because of a tight schedule, you’re definitely not alone.

1. Collagen powder. Preliminary studies suggest that marine-sourced collagen may stimulate hair growth, says New York City dermatologist Yoon-Soo Cindy Bae. Though more research is needed, participants in studies reported thicker hair after three to six months of daily use. Crushed Tonic Original Powder ($105) easily mixes into coffee, tea, and water.

Most men experience hair loss as they get older, but for some it starts as early as their 20s or 30s. We offer both Finasteride and Propecia as prescription-only hair loss treatments. If you order Finasteride or Propecia from our discreet online service, you can pick it up from one of our pharmacies the same day, or have it delivered the following day.


While stories about hats choking off follicles or long hair pulling on the roots may be more folklore, repeat hair trauma like tightly woven hair pulled back and consistent friction can potentially worsen or cause localized hair loss in some individuals. Individuals who pull their hair tightly back in a rubber band can develop a localized hair loss at the front of the scalp.
Localized or diffuse hair loss may also occur in cicatricial alopecia (lupus erythematosus, lichen plano pilaris, folliculitis decalvans, central centrifugal cicatricial alopecia, postmenopausal frontal fibrosing alopecia, etc.). Tumours and skin outgrowths also induce localized baldness (sebaceous nevus, basal cell carcinoma, squamous cell carcinoma).
Every part of the body requires thyroid hormone for proper functioning, and that includes the hair follicles. In 2008, the Journal of Clinical Endocrinology and Metabolism presented the first evidence that human hair follicles are direct targets of thyroid hormones. This research demonstrated that the thyroid hormones T4 and T3 modulate multiple hair biology parameters from cycling to pigmentation.
If proper treatments are not carried out, the dry conditions can lead to other serious common hair problems such as frizzy hair, split ends, thinning hair, hair loss, and hair breakage at an early age. Therefore, it is important for you to moisturize and hydrate the hair strands. High- quality conditioner is strongly required for those common hair problems. Some types of essential oils can be perfect choices for you by making your dry hair shiny and soft again. Remember not to comb your hair if it is still wet to avoid breakage and split ends.
Tissue expansion. In this procedure, a material called a tissue expander is inserted under portions of the scalp with hair. Saline water is injected for six to eight weeks in order to expand or stretch this portion of hair-bearing skin. The bags are eventually removed and the expanded hair-bearing skin is cut away and moved to the adjacent bald area. This is typically used to address hair loss as a result of burns or injuries on the scalp.
Some hair loss can also result from the psychological condition trichotillomania. “People with this condition compulsively pull out their hair when they are stressed or even when they are concentrating, e.g. studying hard,” says Burg. “Sometimes the individual doesn’t know they are pulling their hair out, doing the activity absent-mindedly, and only notice once the bald patches appear.” Over time the hair follicles can become so damaged that they die and leave permanent bald patches. Find out why you shouldn’t pull out gray hairs either.

One hair loss tablet that targets hormones is Propecia. This targets a specific androgenic hormone (male sex hormone) named dihydrotestosterone (DHT). DHT is present throughout the body, and prompts the growth of hair and spurs sexual development around puberty. However, in later years, it binds to hair follicles and causes them to shrink, occluding hair shafts and making healthy hair growth impossible.
Certain other classes of medication may also promote hair loss. More common among them are certain blood thinners and the blood-pressure drugs known as beta-blockers. Other drugs that might cause hair loss include methotrexate (used to treat rheumatic conditions and some skin conditions), lithium (for bipolar disorder), nonsteroidal anti-inflammatory drugs (NSAIDs) including ibuprofen, and possibly antidepressants.
Proper levels of this promote optimal hair growth and longevity, leading to hair that is healthy, lustrous and more abundant. According to a paper produced by the Ohio State University, found that it is “critically important in the development and maintenance of multiple epithelial tissues, including skin, hair, and sebaceous glands.”  Getting the proper amount of Vitamin A can directly stimulate hair growth in both men and women.
Managing hair loss is just as important as treating it. Now that we've talked about the different treatment options and cures available to reverse hair loss and promote increased growth, let's talk about how you can manage your condition and at the same time prevent further hair loss. The first is more psychological, while the second is more practical.

Hair transplantation is usually carried out under local anaesthetic. A surgeon will move healthy hair from the back and sides of the head to areas of thinning. The procedure can take between four and eight hours, and additional sessions can be carried out to make hair even thicker. Transplanted hair falls out within a few weeks, but regrows permanently within months. Hair transplants, takes tiny plugs of skin, each which contains a few hairs, and implants the plugs into bald sections. The plugs are generally taken from the back or sides of the scalp. Several transplant sessions may be necessary.[33]
Medications and vitamins: Cancer chemotherapy, which attacks hair follicles in its attempt to kill all fast-growing cells around the body, is a well-known reason for hair loss. Other medications’ side effects include hair shedding as well, such as some that treat high blood pressure and gout (a painful joint condition caused by a buildup of uric acid). Excessive levels of vitamin A also contribute.
Do not lose sleep over it. The more one obsesses over the loss of hair, the more depressed one can get. This can lead to unhealthy habits that can only worsen or aggravate hair loss, such as consuming too much sugar or sleeping less, which can contribute to increased stress and physiological trauma to the body. Proper management of the depression that comes with hair loss is important. Having a strong support group that one connects with and shares feelings and advice is a big help. It's also a big boost if one can learn how to make the most of their appearance to divert attention from their head by playing up other features of their body, such as wearing make-up or putting on a statement jewelry or a striking piece of clothing.
If your doctor recommends it, a product like minoxidil can increase hair growth in male- and female-pattern baldness. Alopecia areata can be helped by treatment with corticosteroid creams or injections on the scalp. If your doctor thinks that nutritional deficiencies are causing your hair loss, he or she might refer you to a dietitian or other nutrition expert. 

Male pattern baldness is caused by a very sensitive reaction to DHT (dihydrotestosterone) – a type of testosterone. This reaction causes the hair follicles (hair roots) to shrink and thereby lose the ability to grow new hair. This process also cuts short the lifespan of hair follicles so you lose hair more quickly. The combination of losing hair more quickly and the slow replacement rate results in baldness.
Despite advances in our understanding of hair loss, there are limits to current treatment. In particular, age-related hair loss and inherited forms of hair loss are difficult to reverse, although treatment may prevent further loss and produce partial regrowth. Non-surgical treatments include lotions and tablets. These generally need to be used continuously for the benefits to be maintained. If you stop treatment, regrowth will cease and hair loss will resume.
Male pattern baldness is caused by a very sensitive reaction to DHT (dihydrotestosterone) – a type of testosterone. This reaction causes the hair follicles (hair roots) to shrink and thereby lose the ability to grow new hair. This process also cuts short the lifespan of hair follicles so you lose hair more quickly. The combination of losing hair more quickly and the slow replacement rate results in baldness.
Finally, if these tests come back normal, your dermatologist may suggest a scalp biopsy of a couple of two-millimeter sections taken from your scalp under local anesthesia ($400 and up). It can determine whether genetic hair loss, telogen effluvium (a condition in which hair falls out from stress or rapid weight gain), or a disease (such as lupus) is the cause of your shedding, and your dermatologist can treat you accordingly.
You can also get a hair-loss kit from Hims, which comes with both minoxidil and finasteride. Keeps has one, as well. And though it might seem like overkill to take two different hair-loss treatments at once, this is one of those rare instances where more is actually better. McAndrews calls the combination of orally administered finasteride and topically applied minoxidil a “full-court press” against hair loss. “That’s doing the most you can for preventative medicine.” Rieder notes that taking both drugs together is more effective than taking either one alone.

We all lose hair on a routine basis, shedding as many as 100 hairs per day across the entire scalp. Normally, these hairs are replaced with time. If you have thyroid disease, however, you may experience hair loss more than others—so much so that your hair on the whole looks to be thinning. Having autoimmune thyroid disease in particular also puts you at greater risk for alopecia areata—excessive and rapid hair loss in specific parts of the scalp that can advance to baldness and also effect other parts of the body, like the eyebrows. Most cases of thyroid-related hair loss are temporary and treatable.


The finding occurred after doctors prescribed a 25-year-old man with alopecia universalis the drug because they had heard it had treated a similar condition in mice, according to a statement from Yale University. After three months of treatment, the man had completely regrown the hair on his scalp, and he had visible eyebrows, eyelashes, facial hair, as well as hair elsewhere on his body.

Alopecia areata is an autoimmune disorder also known as "spot baldness" that can result in hair loss ranging from just one location (Alopecia areata monolocularis) to every hair on the entire body (Alopecia areata universalis). Although thought to be caused by hair follicles becoming dormant, what triggers alopecia areata is not known. In most cases the condition corrects itself, but it can also spread to the entire scalp (alopecia totalis) or to the entire body (alopecia universalis).
^ Jump up to: a b Blumeyer, A; Tosti, A; Messenger, A; Reygagne, P; Del Marmol, V; Spuls, PI; Trakatelli, M; Finner, A; Kiesewetter, F; Trüeb, R; Rzany, B; Blume-Peytavi, U; European Dermatology Forum, (EDF) (October 2011). "Evidence-based (S3) guideline for the treatment of androgenetic alopecia in women and in men". Journal of the German Society of Dermatology. 9 Suppl 6: S1–57. doi:10.1111/j.1610-0379.2011.07802.x. PMID 21980982.

Hair changes about as fast as grass grows, which is to say it’s extraordinarily slow and not visible to anyone checking impatiently in the mirror every day. But during regular follow-up appointments, Harklinikken uses high-tech equipment to photograph and magnify the scalp and count new hairs and active follicles, which motivates users to adhere to the regimen. Too many people give up on treatments like Rogaine and low-level-light devices before they’ve had a chance to work, Dr. Senna said.

Wash your hair at least once every three days with a gentle hair cleanser or shampoo to remove all the accumulated dust, dirt, oil, and bacteria build up. Keep it clean at all times to avoid hair fall from clogged follicles. It is also important not to wash your hair more than thrice a week. Overwashing will strip your scalp and hair of the natural oils that are essential for healthy hair growth.


Hair styling products from shampoo, conditioner, to hair dye, bleach, gels and perm and straightening products may contain chemicals that can damage the scalp and cause the shaft to break, resulting in hair thinning. Beware of these products that contain toxic chemicals such as arsenic, thallium, meadow saffron (colchicum autumnale), and lead. These chemical ingredients can manipulate and disrupt the natural hair growth cycle, for example, shortening the anagen phase of growth. Hair procedures like hair relaxing and permanent waving, while do not lead to permanent hair loss, can damage the quality of the hair and make it more prone to hair breakage.
With sufficient vitamin C, every component related to hair growth gets a boost, which enhances the effects of other essential nutrients. One study from 2006 analyzed patients with androgenic alopecia who were treated with vitamin C and found significant growth stimulation in the hair and scalp, which indicates a link between it and hair follicle growth.  In this study they also found that men with male pattern baldness (alopecia areta) saw significant results after supplementing with Vitamin C.
The Rogaine rep we spoke to explained that the different packaging (and therefore different prices) has to do with the FDA-approval process: “We discovered in clinical trials that the hair loss patterns between men and women are different,” she said by way of explanation. “Men typically have that bald spot on the crown of their head, where women generally have a general thinning throughout, but concentrated more on the top of the head. So for FDA approval, we had to come up with two different, gender-specific products, so the directions were more explanatory.”
These are the best hair supplement pills I've tried (and I've tried a lot). My hair gets greasier faster so I can tell it's helping to nourish and produce healthy oils at the root. I have definitely noticed faster hair growth when I'm using this product vs when I'm not. I actually only do 1 pill per day instead of the 3 (to save money) and it still works well.
Other options include microneedling ($1,200 and up per treatment) and platelet-replacement therapy (also $1,200 and up per treatment), which are usually offered in conjunction. Your scalp will be numbed first so you don’t feel the pinpricks involved in microneedling. They promote hair regeneration by spurring wound healing, and platelet-replacement therapy involves injecting growth factors into those wounds. “Combination therapy typically works better than monotherapy and usually yields results after three monthly treatments,” says Sadick, and should be teamed with an at-home minoxidil treatment.
Harklinikken does not advertise, but the 25-year-old multinational company is beginning an aggressive expansion into the $3.6 billion hair-loss market in the United States, meaning you’re likely to hear a lot more about it. A New York clinic opened in June inside the Core Club in Midtown (you don’t need to be a member to get an appointment); and in August, Harklinikken consultations became available at some 70 Women’s Care Florida obstetrics and gynecology clinics. (Roughly 75 percent of the company’s 50,000 active users are female.)
Finasteride inhibits an enzyme that converts testosterone to DHT, or dihydrotestosterone, the hormone that causes hair loss in men, and unlike minoxidil, this drug can actually help hair grow back, as well as prevent further loss. All you have to do is take one pill a day, and according to Dr. Evan Rieder, dermatologist in the Ronald O. Perelman Department of Dermatology at NYU Langone Health, two-thirds of men taking this treatment will see improvements in hair density over time.
Laser treatments. Low-level laser therapy (LLLT) is used for the prevention and reversal of hair loss. Also known as red light therapy, cold laser, and soft laser, it is a form of light/heat treatment (therefore generally safer) that is used on cases of pattern baldness and alopecia areata. The procedure uses a device that emits light that penetrates into the scalp. The more commonly used lasers are the excimer, helium-neon and fractional erbium-glass. The procedure can increase the blood flow in the scalp to stimulate the follicles that are in resting or dormant phase to go into anagen, and at the same time, prevent the production of DHT, which destroys the hair follicles.
It is estimated that 90% of people with hypothyroidism have the thyroid autoimmune condition known as Hashimoto’s Thyroiditis. Hashimoto’s is an autoimmune condition in which the body attacks its own thyroid gland. Despite the prevalence of Hashimoto’s, thyroid antibodies are often NOT tested. You may have Hashimoto’s and not even know it. There are two thyroid antibodies to test for Hashimoto’s: Thyroid Peroxidase Antibodies (TPOAb) and Thyroglobulin Antibodies (TgAb).
Men’s Rogaine Extra Strength Solution is the liquid version of our top pick. It didn’t make our final cut because it includes propylene glycol, which causes irritation in roughly one-third of its users. With that said, Dr. Wolfeld finds that it can be even more effective in practical daily use. In his experience, “the solution can penetrate and get into your scalp a little bit better” than the foam — especially if you’re not taking the time and effort to apply the foam correctly. This seems crazy to us since the foam so quickly dissolved into a liquid in our tests, but if you’re worried, try a one-month supply of the liquid and make the switch to foam if you notice any irritation.
Massage your scalp with hot oil preferably coconut, castor or olive oil. Take the warm oil on hand and apply it to your scalp. Rub your fingers on the scalp in a circular motion, applying gentle pressure. Keep kneading occasionally. This will open up the blood vessels and increase blood flow to your head and strengthen your hair follicles as well, encouraging new hair growth.

Blow dryers, flat irons, and other devices: Frequent use of a blow dryer tends to damage hair. The high heat from a blow dryer can boil the water in the hair shaft leaving the hair brittle and prone to breakage. Dermatologists recommend that you allow your hair to air dry. Then style your hair when it is dry. Dermatologists also recommend limiting the use of flat irons (these straighten hair by using high heat) and curling irons.


Multiple vitamins, including biotin, have been promoted for hair growth, but solid scientific studies for many of these claims are lacking. While taking biotin and other supplements marketed for hair, skin, and nails probably won't worsen anything, it may also not necessarily help the situation. Therefore, advertised hair-regrowth supplements should be approached with mild caution. There is only anecdotal evidence that oral or topical application garlic, onion juice, saw palmetto, coconut oil, evening primrose oil, apple cider vinegar, creatine, and pumpkin seed oil are of benefit for hair loss.
Harsh hairstyles or treatments: Hairstyles that consistently use rubber bands, rollers or barrettes, or pull hair into tight styles such as cornrows, can inflame and scar hair follicles. So can incorrectly used chemical products such as dyes, bleaches, straighteners or permanent wave solutions. Depending on the degree of damage, resulting hair loss can be permanent.
There is no hard and fast answer. With Regaine Extra Strength results may be seen after 8 weeks. Clinical studies have shown that for Regaine Regular Strength or Regaine Gel for men regrowth can occur as early as 16 weeks. But remember that everyone is different so you need to be patient. Studies suggest that Regaine should be tried for 6-12 months before deciding whether to continue.

Scientists have put a lot of effort into investigating the cause of gray hair, and they believe they've gotten to the root of the problem. Hair gets its color from a pigment called melanin, which is produced by melanocyte cells in the hair follicles. Researchers have discovered that melanocytes endure cumulative damage over the years, which eventually leaves them unable to produce melanin. Studies have cited DNA damage and a buildup of hydrogen peroxide in the follicles as possible causes of this disruption in melanin production. Without melanin, the new hair that grows in has no pigment, which makes it appear gray, white, or silver.


While the drug is generally safe for use, some possible side effects are mild irritation of the scalp, dryness and growth of hair on some parts of the body, especially the sides of the face and hands. In some cases, you might observe some increased hair loss around the first few days of use. If the hair fall continues after two weeks upon application of minoxidil, stop the treatment first and see a doctor.
Brushing your hair every morning about 30 mins and evening about the same duration of time with rounded tip hair-brush, will do recondition your scalp with better blood circulations. Do not use comb, it will damage your scalp. Also take hair supplements/vitamins. Believeth or not, ladies still flirting on me, even-though I’m in my mid 40s with lots of hair. 🙂
Anagen is the growth phase. This lasts for about 3 - 5 years, where you can observe your hair growing half an inch every month. Full-length hair from this phase is about 18 - 30 inches long. Studies show that this phase may also be affected by other factors. Asian hair, for example, has been found to have a longer anagen phase. Weather is also a factor; hair growth can be faster in summer than in winter.
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Biotin is a very popular supplement recommended by many doctors, pharmacists, health food stores, TV shopping channels, health websites and more when it comes to hair loss. To find some of the best supplement brands for me to try in my quest for thyroid wellness, combing the internet for customer reviews of various brands has been an important part of my process. I’ve read mixed reviews about biotin. Some users love biotin and others find no improvement or they complain about adverse reactions like acne breakout. Biotin didn’t make a significant difference for me but it might work for you and some brands get incredible reviews like this one.
“I think their effectiveness is not as significant as finasteride or minoxidil,” says Dr. Wolfeld, “however, it’s something that can be used quite easily by patients at home. If they use it two or three times a week, I tell them it can help to thicken their hair.” Results can take up to 18 months to show up, so Dr. Wolfeld stresses that patience is a virtue.
"The thyroid gland helps to regulate the body's metabolism by controlling the production of proteins and tissue use of oxygen. Any thyroid imbalance can therefore affect hair follicles", Anabel explains. Also, if hypothyroidism is left untreated it may result in anaemia, which - as we've just discussed - is another condition that can impact the hair (or lack of it).
Every part of the body requires thyroid hormone for proper functioning, and that includes the hair follicles. In 2008, the Journal of Clinical Endocrinology and Metabolism presented the first evidence that human hair follicles are direct targets of thyroid hormones. This research demonstrated that the thyroid hormones T4 and T3 modulate multiple hair biology parameters from cycling to pigmentation.
The third and fourth stages are known as telogen and exogen, respectively. In telogen, the hair is supposed to be at "rest" until it finally detaches itself from the follicle and enters the exogen or shedding stage. Once the hair is detached from the follicle, the follicle remains inactive for about three months, after which a new cycle begins again.
Acupuncture is a form of Chinese medicine that has been practiced for thousands of years. Its applications are many, and some researchers believe that it may help with hair loss from alopecia areata. How? The needles inserted into the scalp may help stimulate hair follicles and promote regrowth. More research needs to be done in this area, but consider asking your doctor for a referral to a licensed acupuncturist if this treatment sounds appealing to you. (Learn more about acupuncture for hair loss.)
Hormonal changes and medical conditions. A variety of conditions can cause permanent or temporary hair loss, including hormonal changes due to pregnancy, childbirth, menopause and thyroid problems. Medical conditions include alopecia areata (al-o-PEE-she-uh ar-e-A-tuh), which causes patchy hair loss, scalp infections such as ringworm and a hair-pulling disorder called trichotillomania (trik-o-til-o-MAY-nee-uh).

Androgenetic alopecia. Among adults, the most common cause of hair loss is androgenetic (pronounced: an-druh-juh-NEH-tik) alopecia. This is sometimes called male- or female-pattern baldness. This condition is caused by a combination of things, including a person's and hormones called androgens. This kind of hair loss can sometimes start as early as the mid-teen years. It also can happen to people who take steroids like testosterone to build their bodies.


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Medical conditions and medications. A common medical condition that also causes hair loss is hypothyroidism, which can happen in both men and women. Patients suffer from an underactive thyroid gland, which is responsible for producing the hormone, thyroxin, which performs important bodily functions, such as the regulation of body temperature, proper utilization of carbohydrates and fats, and production of protein. Since protein is an important nutrient for the production of keratin, inadequate protein supply in the body due to an underactive thyroid means that hair growth in the follicles is slow. In men especially, hair loss is one of the first signs of hypothyroidism.

While natural hairpieces are available, many hair loss consumers have little idea what to look for when purchasing a hairpiece. Unfortunately, the hair loss industry includes some companies that may take advantage of hair loss sufferers. Research conducted by the American Hair Loss Association estimates that more than 70% of nonsurgical hair loss consumers are unhappy with the quality, service, and price provided by their hair replacement salons.

The scalp contains a natural oil called sebum, which helps keep the skin lubricated. Sebum is produced by the sebaceous glands. Sometimes these glands work overtime and produce too much oil, leading to a greasy scalp. Greasy hair can look dull, limp, and lifeless, and it may be more difficult to manage. To treat greasy hair, try washing with a gentle shampoo that is specially formulated to control sebum.
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