Unfortunately, as with the aforementioned minoxidil, you’ll begin to lose your hair again if you ever stop taking Finasteride. Additionally, it may cause erectile dysfunction and other sexual problems in men although that’s uncommon. Men who experience these side effects from taking this pill can reverse them; however, that can take up to three months to occur.
Men may also experience some sexual and emotional side effects while taking it: In a study published in the June 2011 issue of The Journal of Sexual Medicine, Dr. Michael Irwig of George Washington University found as many as 92 percent of test subjects reporting problems in the bedroom. The study also reported that “the mean duration of finasteride use was 28 months and the mean duration of persistent sexual side effects was 40 months,” meaning that side effects lingered long after subjects stopped taking the pill.
Key features: Dr. Zeichner recommends the Keratin Oil Shampoo and Conditioner by OGX for thinning or fine hair that needs the extra strength. This budget-friendly option uses keratin proteins mixed with argan oil to nourish, condition, and strengthen strands, and it's only $16 for the set. The smoothing formula can also increase elasticity for less breakage and split ends.
DH—or as it’s less commonly known, Dihydrotestosterone—is the bodily byproduct that (in the TL;DR explanation) shrinks hair follicles until they’re so thin and short they just fall out. Keranique’s unique blend includes a DHT-inhibitor, which penetrates the scalp and follicles to deliver a keratin amino complex, developed to add resilience and protection. This one can contribute to improved texture, healthier strands, and yes, even new growth.
The other main hair-loss treatment that was recommended by all four dermatologists I interviewed is finasteride, often called by its brand name Propecia. This FDA-approved medication is only available with a prescription, but these days, it’s found as a generic and ordered online after a virtual consultation, through start-ups like Hims, Keeps, and Lemonaid.
In either sex, hair loss from androgenetic alopecia occurs because of a genetically determined shortening of anagen, a hair's growing phase, and a lengthening of the time between the shedding of a hair and the start of a new anagen phase. (See "Life cycle of a hair.") That means it takes longer for hair to start growing back after it is shed in the course of the normal growth cycle. The hair follicle itself also changes, shrinking and producing a shorter, thinner hair shaft — a process called "follicular miniaturization." As a result, thicker, pigmented, longer-lived "terminal" hairs are replaced by shorter, thinner, non-pigmented hairs called "vellus."
Dr. Carlos Wesley, a hair restoration surgeon in Manhattan, said that women in his practice respond better to P.R.P. than men do, which may have something to do with the fact that women with genetic hair loss tend to have more inflammatory cells around the follicles. From 2013 to 2014, he said, he had an 83 percent increase in female patients, in part because of P.R.P.

Along with male pattern baldness, there is also a condition known as female pattern baldness, in which hair thins on the top of the head. Less is known about this type of hair loss, but it is more common in women who have been through the menopause. Female pattern baldness cannot be treated with finasteride (as with male pattern baldness), but it can be treated with minoxidil. Minoxidil is rubbed into the scalp once or twice a day and should start to show results after about four months. After ceasing treatment with minoxidil, hair loss should resume within a few months.
Chemotherapy is also one of the primary causes of balding among cancer patients, men and women alike. While not all chemotherapy treatments result in hair loss, some that involves the use of drugs like Altretamine, Carboplatin, Docetaxel, and Idarubicin can cause hair thinning and hair fall. In such cases, the hair loss varies from person to person and the dosage of drugs administered. Hair fall doesn't occur at once, but rather after several weeks of treatment until hair fall rate increases after one or two months of exposure to chemotherapy. Radiation therapy as part of cancer treatment can also result into hair loss but typically only in areas where the radiation is targeted.
And though this treatment appears to be safe and somewhat effective, it’s hard to tell who will react well to this low-level light therapy, which is why the doctors I spoke with were hesitant to fully endorse it. “We’re not sure what the optimal power is, what the optimal wavelength is, we don’t even really know the mechanism of action of how this is working,” says Rieder. Plus, it doesn’t work on everyone. “There are subpopulations of patients who do respond to low-level laser light, but this is not easily predictable,” explains McMichael, though she adds that the risk of using the LaserComb is low.
On a particularly obscure corner of the Internet, FarrellHair.com, there is a seventeen-minute-and-forty-eight-second video in which the actor Jason Alexander explains why he suddenly has hair. It’s an unexpectedly entrancing bit of work. Alexander displays none of the cynicism of his iconically bald TV character George Costanza. Warmly and earnestly, he pours his heart out to Richard Farrell, the man who made his hair.
2. Oil-rich conditioner. “Oils improve hair’s tensile strength,” says Paradi Mirmirani, a hair-loss specialist and dermatologist in Vallejo, California. In other words, oils make hair less likely to break under pressure, which is especially important for thinning hair that’s prone to snapping when brushed or styled. Mirmirani recommends using a conditioner fortified with natural oils, like Burt’s Bees Very Volumizing Pomegranate Conditioner, which contains avocado oil ($8), or Honest Company Conditioner with coconut oil ($10). That one’s got an added benefit: “Coconut oil has been shown to penetrate hair,” says cosmetic chemist Randy Schueller, so it makes your hair stronger from the inside out. (Just don’t load up on pure coconut oil. “You might overshampoo your hair to get it out, and then you’ll end up drying your hair and undoing any benefit,” says Fusco.)
Some immediately see a doctor for Rogaine or Propecia, seek out over-the-counter miracle baldness cures, or even look into hair transplants. Others, though, take a more measured approach and begin using shampoos which can help slow hair loss in a safe and natural way. Groom+Style has written about the reasons for hair loss in men previously.  The causes of hair loss in women and children are slightly different. You might also be interested in how to keep your hair healthy in other, natural ways.
“It all comes from the tissue taken from the back of the head. The hair follicle has a lot of Type 1 collagen in it,” he said. “We can isolate the hair-growing or collagen-producing cells and use them to start hair growth or regenerate degenerative tendons or tissues of skin. And it is a more natural way of doing it. There is nothing more natural than using your own cells to make your skin look healthy, to heal damaged tendons or to have a thicker head of hair.”
Follicular Unit Extraction (FUE). In this method, instead of taking out a whole sample strip, small, individual follicle grafts are cut using a machine and then transplanted. The process is more tedious and more time-consuming, but has been known to have a higher recovery rate and there are no risks of scarring because no cuts and stitches are required.

While it’s not entirely clear why hair growth occurred after taking dupilumab, Senna hypothesizes that dupilumab may alter the immune system pathway that is overactive in eczema sufferers. "Right now, it's hard to know whether dupilumab could induce hair growth in other alopecia patients, but I suspect it may be helpful in patients with extensive active eczema and active alopecia areata," she explained.


“Curis (now-dormant company) had performed a lot of studies on targeting the Hedgehog pathway for hair growth with very promising results, however, their compounds caused orthosteric activation of the pathway (turning it on everywhere and robustly which is not safe) vs. Oxy133 which causes a much more regulated and limited allosteric activation of the pathway only in stem cells. This could make Oxy133 a blockbuster. Let’s see what happens.”  

The key ingredient in Nizoral is ketoconazole, which reduces hair follicle inflammation that contributes to hair loss. Ketoconazole also kills fungi that cause dandruff, but there’s not so much of it as to be toxic (which large amounts of ketoconazole can be). It has been argued that dandruff may contribute to hair loss; while there’s no direct link, it’s certainly worth noting here.
Approved by the FDA and available in over-the-counter form for both men and women, minoxidil has been found to work in two out of three men. However, and this is a huge problem, if you stop using it, then your hair will actually fall out again and potentially faster than before. Plus, you might not even notice any changes until you’ve been using this medication for at least four months! 

“Once that hair has stopped shedding, it does regrow, at a rate of about a centimeter a month,” said Dr. Senna, who suffered from the condition after each of her pregnancies. She shares photos of herself with patients, to show she can sympathize. In one, her entire frontal hairline clearly is growing back in. “If I’d used a treatment, I would have thought it was a miracle drug,” she said.
7/26/18 Update: After positive early data, various trials of JAK inhibitors such as Ruxolitinib and Xeljanz are underway. Columbia researchers have had positive results with Xeljanz in 11 out of 12 subjects achieving some regrowth with no adverse side effects over 16 months of treatment. Investigators at Stanford and Yale are conducting three trials of oral and topical tofacitnib and Locks of Love Foundation is fuding another ruxolitinib study. At this time, there are about 15 publications looking at JAK inhibitors and their relationship to alopecia and its variants.
Keranique Hair Regrowth 3-Piece Treatment Set for Women, Lipogaine for Women, Pantene Minoxidil 2% Hair Regrowth Treatment for Women, Prominox 1 Hair Loss Shampoo, Prominox 2 Hair Loss Conditioner, Prominox 3 Hair Growth Stimulator, Prominox 6 Leave-In Hair Loss Conditioner, REDKEN Cerafil Retaliate 2% Hair Regrowth Treatment for Women, Rogaine for Women Hair Regrowth Treatment
The method for applying hair loss shampoo is the same as regular shampoo, i.e., you apply it to wet hair, massage it into the scalp and rinse it. The difference with hair-loss shampoos, however, is that you should leave them in for a longer time before rinsing. Doing so ensures that their ingredients reach your hair’s roots and scalp, where they have the biggest impact.
Again, you’ll want to visit your doctor to get a blood test to check your levels in these vitamins. For example, women who have iron levels lower than 70 nanograms per milliliter are considered deficient. From there, work with your doctor to find an appropriate dose according to your deficiency level. Excessive or unnecessary supplementation can be dangerous.

The best fix by far for replacing lost hair is a transplant. Back in the day, docs used plugs that resembled cornrows (definitely not natural looking). Today, guys have more options. You can go for “the strip method” where a doctor surgically removes a strip of hair from the back of your head, dissects every hair graft under a microscope, and then plants the individual grafts onto hair-thin areas of your scalp with tiny incisions.
McElwee is an associate professor in the Department of Dermatology and Skin Health at the University of British Columbia (UBC) in British Columbia, Canada and director of the Hair Research Laboratory in the Vancouver Coastal Health Research Institute (VCHI) at Vancouver General Hospital (VGH). A hair research scientist, McElwee is one of only a small group of research scientists worldwide who studies hair biology and associated diseases.
Along with male pattern baldness, there is also a condition known as female pattern baldness, in which hair thins on the top of the head. Less is known about this type of hair loss, but it is more common in women who have been through the menopause. Female pattern baldness cannot be treated with finasteride (as with male pattern baldness), but it can be treated with minoxidil. Minoxidil is rubbed into the scalp once or twice a day and should start to show results after about four months. After ceasing treatment with minoxidil, hair loss should resume within a few months.
While some medical practitioners are still on the fence about the effectiveness of laser treatments, studies have found that hair growth using laser therapy increased by 19 normal-size hairs per square centimetre. The regrowth is also observed as thicker, shinier and more manageable. It's a non-invasive, painless procedure that works for both men and women. However, the LLLT is not a stand-alone cure and is thus used in combination with other treatments.
From the top of my head, I don’t remember if the Lipogaine’s Big 3 Shampoo contains ketoconazole but if it does, then that’s a definite plus. Another thing you can do is buy Nizoral and use it in conjunction with The Big 5 Shampoo. So for example, use Nizoral on Mondays and Thursdays and The Big 5 in all the days in between. That way you’d get all the benefits.
3. Hair fibers. The best (and easiest) way to hide a widening part or sparse patch is with hair fibers. They’re tiny, charged fibers that adhere to your scalp (until your next shampoo). Toppik Hair Building Fibers ($25) come in a range of colors so you can easily find one that matches your own hair. (In a pinch, you can also brush a powdered eye shadow that matches your hair color along your part.)
Researchers from UCLA in the lab of Jing Huang have recently shown that certain molecules which activate the cellular process known as autophagy also drive hair follicles into the anagen (growth) phase. The researchers studied different metabolite molecules and other molecules which are FDA approved and on the market as drugs. The most recognizable drugs from the study were metformin and rapamycin, one is a diabetes medicine and the other an immunosuppressant. Dr. Huang says her lab is looking to study these drugs for human hair growth soon. In my opinion, results from that study are something to look out for. Full article on the Articles page.

This moisturizing double-duty product is incredibly well rated (and you don’t even have to pay the pink tax to boot). Soy proteins and shea butter add silky strength, while scalp-tingling peppermint and rosemary provide minty freshness and lift at the root. “The thickening properties of the shampoo are great at this price point, so if you have thin or thinning hair, this will add some volume,” wrote one reviewer. “I also noticed that this is the first shampoo/conditioner shampoo that tends to actually condition your hair."


I feel inspired to share on the Updates thread a few uplifting comments I received from readers in the past week. Following my admonition to a previous commenter that sending out short, supportive emails to hair growth companies (without asking for extra information that you know they are not ready to share) would be a worthwhile endeavor and boost morale, I received some encouraging responses from two frequent visitors of this site who followed through on the idea. Their comments are shared below. 🙂
Many pharmaceutical companies and researchers are in the search for a hair loss cure. This is because 7 out of 10 men and 4 out of 10 women suffer from androgenic alopecia (genetically caused hair loss) in their lifetime. In the United States that amounts to around 80 million men and 40 million women currently suffering from hair loss. Of course, a permanent cure would relieve a huge percentage of the population.
Aclaris Therapeutics has announced on March 9, 2018 that the US Patent and Trademark Office has issued their company U.S. Patent No. 9,895,301, for methods related to  the use and administration of a certain janus kinase (JAK) inhibitor for treating hair loss disorders. This patent covers the treatment of both alopecia areata as well as androgenic alopecia.
McElwee is an associate professor in the Department of Dermatology and Skin Health at the University of British Columbia (UBC) in British Columbia, Canada and director of the Hair Research Laboratory in the Vancouver Coastal Health Research Institute (VCHI) at Vancouver General Hospital (VGH). A hair research scientist, McElwee is one of only a small group of research scientists worldwide who studies hair biology and associated diseases.
Bumble & bumble had fine-haired beauties in mind when creating this super-moisturizing (but still super-weightless) formula. The shampoo’s trifecta relies on damage-controlling panthenol (or you as you may know it, vitamin B5), strengthening wheat protein, and scalp-loving, deep-conditioning aloe vera. Strands are left prepped for big, voluminous blowouts or to be hand-tousled for texture, movement, and shine.
2. Volumizing shampoos and treatments. Typically, these work by depositing ingredients, like wheat protein and keratin, that adhere to the hair shaft to a) thicken it and b) create spaces between hairs so you look like you have more of it. Try Kiehl’s Rice & Wheat Volumizing Shampoo ($18) with hydrolyzed wheat protein; Rogers likes Redken Cerafill Defy Shampoo and Conditioner ($20 each) with ceramides that bulk up hair. 

SM04554, Samumed’s topical for androgenic alopecia, is one of the company’s late stage programs. The other late stage program within Samumed is their drug for osteoarthritis. Phase 3 trials are very costly so the numbers here make sense for Samumed to be pushing forward. This news would indicate we should be hearing about Samumed initiating a phase 3 trial for the commercialization of SM04554 in the near future.
I wonder whether hair loss would get as much attention if it were primarily suffered by women. But Kobren corrects me. “Actually, 40% of hair loss sufferers are women,” he says. “Except women are able to wear wigs and hair extensions and they can camouflage it in a way that men aren’t really allowed to.” He describes female pattern hair loss as a “silent epidemic of biblical proportions” that he puts down to the use of cosmetics and birth control (some women experience hair loss as a side effect to contraceptive pills).

One hard truth: Hair loss is mostly out of your control. “Baldness comes down to your genes,” says Frederick Joyce, M.D., founder of Rejuvenate! Med Spa and a member of the International Society for Hair Restoration Surgery. “If you have the baldness gene, there are some natural remedies that may make your hair stronger and healthier to slow your hair loss slightly—but they won’t prevent you from going bald. Still, maintaining hair health by eating well and using the right products—combined with medical-grade treatments—can really work all together to help you have a fuller, thicker head of hair.”
Hair loss shampoo probably won’t help you defeat hair loss on its own, but it certainly should be used as another weapon in your arsenal. Many of these products do contain ingredients that are beneficial for hair loss and scalp health—every little bit helps. Let’s face it, you have to wash your hair with something and that something might as well aid in hair loss prevention.

Scientists from the Indiana University School of Medicine have for the first time created skin with hair follicles using mice stem cells. Research was led by Professor Karl Koehler. The team was able to grow both the epidermis and dermis layers of skin to create a realistic skin model. An interesting quote from Professor Koehler: “It looks like a little ball of pocket lint that floats around in the culture medium. The skin develops as a spherical cyst and then the hair follicles grow outward in all directions – like dandelion seeds.”
Hey there, I'm Shawn, the founder of Tools of Men! This site was created to help out other guys by teaching them proper grooming habits and the basics of sensible style. We try to make things here a bit of fun while giving you clear info. If you want to get in touch with us, drop us a line on the contact page or via social media. Thanks for checking out the site - and make sure to come back again!
In Michael Wolff’s “Fire and Fury,” Kuntzman’s theory is bolstered. Wolff writes that Ivanka Trump “often described the mechanics behind it to friends: an absolutely clean pate—a contained island after scalp-reduction ­surgery—surrounded by a furry circle of hair around the sides and front, from which all ends are drawn up to meet in the center and then swept back and secured by a stiffening spray.”

Finasteride (brand name Propecia) is the closest to a hair loss cure pill that scientists have discovered to date. This is a DHT hair loss cure. DHT is made when 5 alpha reductase converts testosterone, and Propecia has been found to be an effective inhibitor of DHT by preventing this process from happening. It works internally, at the root of the cause. Therefore, DHT sensitive hair follicles in the front and top of the scalp don’t have to fight off nearly as much DHT.
Now known as RCH-01, RepliCel’s procedure is a patented cellular replication and implantation technology designed to rejuvenate damaged and miniaturized hair follicles in a balding scalp. According to Buckler, the technology involves the extraction of as few as 20 hair follicles from the back of a patient’s scalp where healthy cycling hair follicles reside.  Specific cells are isolated from hair follicles and are cultured using the company’s proprietary cellular replication process.  The cultured cells are reintroduced or injected back into balding areas on a patient’s scalp and are expected to rejuvenate damaged hair follicles leading to the growth of new healthy hair fibers.
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.

I am so happy with this product. I have thinning hair and have used many products in the past trying to at least stop it. I don't expect a miracle for it to grow back but I would love to just stop the hair falling out. Immediately after using this just one day I already noticed improvements. I was told my hair shined more, it was softer and also fuller. The hair falling out has improved a lot. I have not personally noticed hair growth yet but its only been 2 weeks now and I can say without a doubt it has made my hair healthier. I will be getting more for sure


That said, there are products that don’t have FDA approval or clearance, but may help prevent hair loss. For example, shampoos with ketoconazole, a chemical with anti-DHT properties, is widely used to treat fungal infections but has become popular among consumers as a hair loss treatment. It makes sense — research shows that ketoconazole actually has beneficial effects on hair growth (especially for those with seborrheic dermatitis).

When you notice one or more of these problems, you might be experiencing hair loss. For more information on the different stages of balding, have a look at the Norwood Scale. There, you can see the seven different stages of male pattern baldness. As hair loss progresses higher on the scale it becomes more difficult to keep your hair and potentially regrow lost hair.
And just like that, more fascinating hair-related research was published in PLOS Biology. A team of researchers lead by Dr. Nathan Hawkshaw of the University of Manchester have identified the drug ‘WAY-316606’ as a potential candidate for hair regrowth. WAY-316606 is an existing drug used to treat osteoporosis. It’s not clear at this time whether WAY-316606 is approved and on the market, or if it was partially developed to treat the bone disease.

3. Hair fibers. The best (and easiest) way to hide a widening part or sparse patch is with hair fibers. They’re tiny, charged fibers that adhere to your scalp (until your next shampoo). Toppik Hair Building Fibers ($25) come in a range of colors so you can easily find one that matches your own hair. (In a pinch, you can also brush a powdered eye shadow that matches your hair color along your part.)
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.
Over the past year, the Hair Restoration Laboratories’ Professional Strength DHT Blocking Hair Loss Shampoo (and accompanying DHT Blocking Hair Loss Conditioner) has been a top seller on Amazon and many other sites. Combined, the daily use Shampoo and Conditioner has more DHT blockers than any shampoo/conditioner set presently available. Among the key DHT Blockers in this set are: Caffeine, Saw Palmetto, Black Cumin Seed Oil, Cayenne Fruit Extract, Rosemary Leaf Oil, Pumpkin Seed Oil, Green Tea Leaf Extract, Pea Extract and many more. By helping to block DHT, they should be a great asset in helping to halt the miniaturization of the hair follicles and regrow healthier and thicker hair.
I noticed significant thinning, and hair all over the sink every morning, from breakage; I use a flat iron sometimes, and my hair is color-treated. I have since started using coconut oil to help manage my frizzy damaged naturally curly hair. It acts as a wonderful styling product, it lends shine and manageability, has also stopped the breakage, you just have to be very careful with the amount that you use. I also use castor oil and rosemary essential oil on my scalp at night and wash in the morning….egg is supposed to be useful for its proteins (must rinse after 20 min with cool water!!) And mayonnaise too, but I haven’t tried that. Best of luck, Friend….

Alopecia areata: Researchers believe that this is an autoimmune disease. Autoimmune means the body attacks itself. In this case, the body attacks its own hair. This causes smooth, round patches of hair loss on the scalp and other areas of the body. People with alopecia areata are often in excellent health. Most people see their hair re-grow. Dermatologists treat people with this disorder to help the hair re-grow more quickly.
3. Nutriceuticals. Rogers recommends that her patients try Viviscal Dietary Supplements ($50 for a one-month supply) or Nutrafol ($88 for a one-month supply), both of which can often be picked up in a salon. The former contains marine-based proteins meant to beef up thinning hair. The latter is packed with antioxidants, like ashwagandha and curcumin, and boasts impressive clinical results.
The trick about all of these hair-loss products and treatments is that they’ll stop working as soon as you stop using them. “They have to be ready for a lifetime commitment,” says Rieder. But, just like brushing your teeth, as long you keep on keeping on with the scientifically proven preventative treatments, those hairs on your head should be just fine.
Due to the concern of several readers, I’ve removed the link to the new Trinov website that has popped up on the net. For now, the website only contains an email address subscription box which really poses no issue to anyone who subscribed. At this time, it’s not confirmed who the actual owner of the new Trinov site is, so use your discretion until we find out more regarding this matter. Until more information is known the website will not be shared on Follicle Thought.
Researchers from the NIH and the University of Alabama, Birmingham have discovered a connection between the body’s innate immune regulation and hair graying. It was found that the transcritpion factor known as MITF, which plays an important role in melanocyte function, also plays a major role in hair graying. When the body’s immune system is dealing with a pathogenic infection such as bacteria or virus, molecules called interferons will send out signals to the body to take action against the pathogen. If MITF loses control of interferon response in melanocyte stem cells (due to an immune system response), hair turns gray. Essentially, immune system response may contribute to the process of hair graying according to the study.
The patient, a small, vaguely European man in his late forties, had rings on his fingers and a bloody, rectangular gash on the back of his head. It looked like a chunk of missing carpet. Bernstein pointed at the white opening of exposed scalp, and explained how easy it would be to stitch skin together over the gap. This was a traditional process for follicular-unit transplantation. Then Bernstein led me into a second room, where another patient was seated with his face in a massage-table-like padded hole. A portion of the back of his head was marked off. To his right was a boxy gray machine, roughly four feet by four feet, with a jutting mechanical arm. This was the ARTAS Robotic Hair Transplant.
Lately I’ve been receiving a few inquiries from readers about Shiseido and Brotzu release dates. So, I’m going to address the situation here and hope that this will be sufficient until more news comes from direct sources. I estimate that these companies would publicly address the release date of their products by the end of Q3 this year (end of Sept). As consumers we know there’s no guarantees for releases and if one or both of these products reached the market this year it would be a very fortunate situation. So, keep an eye out, but loosen the grip a little. The news will come when it comes. When there is news it will be visible here.
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.
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