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Questions tagged [hair]

A filamentous biomaterial that grows from follicles found in the dermis.

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198 views

Does Saw Palmetto extract reverse hair loss?

Saw Palmetto extract is derived from the fruit of a palm tree. It is commonly claimed to be a treatment for pattern hair loss (androgenic alopecia). Some say it works by preventing the conversion of ...
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196 views

Does Alpecin Caffeine Shampoo help to reduce hair loss?

This website mentions: The makers of Alpecin Caffeine Shampoo must no longer advertise that the product can reduce hair loss after a watchdog ruled there was no adequate evidence to support the ...
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281 views

Will hair restart growing after a dietary protein deficiency is fixed?

The Livestrong article: How Much Protein to Prevent Hair Loss claims: Hair is made from protein. When the body does not get enough protein, it rations it by shutting down the production of non-...
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1answer
954 views

Do hats or ponytails induce baldness?

There is a sort-of myth that wearing hats, tight ones in particular, can cause balding, or at least speed it up. Another one is wearing ponytails, or, more generally, hairstyles that tightly pull the ...
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0answers
254 views

Does black seed oil help in regrowing hair on bald regions of the scalp?

From: http://oilhealthbenefits.com/black-seed-oil/ "Black seed oil may help in regrowing hair on bald regions of the scalp" Is this claim true?
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Is hair charged with static brittle and susceptible to breakage?

It is said that plastic combs produce static electricity therefore we should use wooden combs. http://www.joybynature.com/blogs/beauty-style/41263937-6-surprising-benefits-of-using-neem-wood-comb-for-...
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5k views

Does your hair grow faster when you're sick?

A friend told me that when you're sick, your hair grows faster. When I started asking a lot of questions, my friend said it's a known fact but she doesn't remember where she heard it first or what was ...
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1answer
490 views

Are red-heads going extinct?

There is a widely-held belief that there will no longer be humans with red hair in the future (sometimes cited by 2060 or 2100). For example, these Facebook groups: "Save the ginger kids, there ...
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1answer
893 views

Do dogs tend to distrust men with beards?

I have heard that dogs are often less friendly and generally less trusting of men with beards. Today as I walked past a dog and its owner on the way to my apartment, the dog growled at me; this made ...
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1answer
474 views

Does hair fall first from the top of head because of reduced blood supply due to lack of movement?

In this very quackery-like video, it's claimed that hair loss occurs first from the top of the head rather than the side because the latter moves when chewing or doing other facial movements. This ...
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1answer
2k views

Does stress cause hair to go grey?

Apart from aging, does stress or fear contribute in the change of hair color to grey/white?
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1answer
6k views

Do nails and hair continue to grow after death?

I've heard that nails and hair continue to grow even after death. Is this true or just a myth?
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1answer
359 views

Does laser phototherapy treat male pattern hair-loss?

Laser phototherapy is being touted as an effective treatment for male pattern hair-loss. e.g. Hairmax claims: HOW HAIRMAX STIMULATES HAIR GROWTH: Energizes weakened hair follicles ...
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120 views

Can blow drying be beneficial for hair and scalp health?

My friend told me that blow drying hair can prevent hair loss and dandruff by making the skin dry and thus making it harder for funghi and yeasts to flourish. This sounds reasonable, but for a man ...
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1answer
487 views

Is removing hairs from a mole harmful?

It is often said that removing hairs (a hair) from a mole (melanocytic nevus) is not a wise thing to do. It is often said that this would increase the chance of the mole becomming cancerous (turning ...
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215 views

Does usage of hair care products lead to male hair loss?

I've heard it mentioned multiple times (especially by hair dressers) that using (or not washing properly out before going to bed) hair care products such as hair wax, gel, etc. leads to or accelerates ...
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1answer
518 views

Can reducing DHT by dietary means reduce or reverse hair loss?

So, I came across this video that advertises a hair-loss prevention and reversing technique. The video is very much over the top, saying that the technique reverses hair loss in every patient, ...
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230 views

Do beard growth oils increase beard growth speed?

There are several topical oils that promise to speed up the growth of beards. Here's an example of the type of product I'm talking about: Beard Growther on Amazon About the Product Grow ...
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0answers
536 views

Is shaving Siberian Huskies harmful?

I recently came across a post on Imgur claiming shaving a Siberian husky exposes it to "sunburn, skin cancer, insects, and parasites". [...] the layers of your pet's coat help to protect them from ...
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2answers
6k views

Does gelatin aid hair and nail growth?

It's an old saw, your parents telling you to eat your gelatin because it will make your hair and nails strong. There are sites on the internet stating similar claims, but they're usually the same sort ...
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0answers
128 views

Can the shampoos harm the hair or the head skin? [duplicate]

I heard that if you wash your hair in every day, your hair will fall out. For example: This magazine article, Hair loss dos and don'ts for men who are going bald: DON'T WASH YOUR HAIR EVERY ...
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0answers
233 views

Does shampoo containing pro-B5 affect the appearance of hair?

Many shampoos contain vitamins. Elvive Vitamax shampoo for example, is variously promised to contain "Vitamin pro-B5" which makes hair full of vitality. Is this additive useful?
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5k views

In Chinese culture is it good luck to let facial mole hair grow long?

Walking through Chinatown, I occasionally notice men whose faces appear shaved except for a collection of uncut hairs sprouting from a facial mole. I don't know what came over me today, but I decided ...
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1answer
2k views

Does trimming your hair regularly make it grow faster?

I heard this recently from a friend who claims every hair stylist they've ever spoken to tells them this. After some searching I've found several articles claiming it and several more claiming it's ...
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0answers
1k views

Can drinking beer cause hairloss or more shedding?

I have seen some reports that drinking beer can cause shedding. Maybe it is related to alcohol and estrogens. Can these reports have any foundation? http://www.hairlosshelp.com/forums/messageview.cfm?...
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1answer
3k views

Does onion juice increase hair growth?

Some web-sites say that onion juice, applied topically, can promote hair growth Is this true? Closely related question: Does garlic improve hair growth in androgenetic alopecia?
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234 views

Does eating brewer’s yeast increase hair growth?

I heard this idea many times, here for example. Brewer’s yeast contains many vitamins, minerals and proteins that are indispensable for your hair. The lack of these nutrients, instead, may cause ...
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1answer
918 views

Does heavy exercising increase beard growth?

The claim that exercise promotes beard growth is common around the Internet. The explanation that is the most common is that heavy exercising increases the testosterone levels in the body and that in ...
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1answer
764 views

Do North Korean men have to cut their hair like Kim Jong Un does?

I read on several websites that a recent law compels North Korean men to cut their hair like Kim Jong Un does. Where does this information come from? Is it reliable? Here is an example in Belgian ...
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1answer
5k views

Does garlic improve hair growth in androgenetic alopecia?

I have found two papers related to garlic for treating alopecia areata [1,2]. Is there any other evidence for hair growth in androgenetic alopecia? In fact there are some statements [3,4] that it ...
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1answer
2k views

Does cutting or shaving the hair of infants cause better hair regrowth?

An earlier Skeptics Stack Exchange question asks: If you shave or wax, will the hair grow back stronger or thicker? However, I am interesting in a more specific claim: that shaving the head of an ...
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0answers
1k views

Does honey, applied topically, cause your hair to go white?

I used to hear this from my friends: If you apply honey to your hair, your hair will turn white. Is it true?
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2answers
5k views

Is shaving your pubic hair bad for you?

I've been told that it is currently very popular to shave you pubic hair, especially if you are a woman. There appears to be evidence that it is popular. This article from The Atlantic is titled: ...
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1answer
2k views

Does the Theradome Laser Helmet deliver around 7 J/cm2 to the head?

The Theradome Laser Helmet is claimed by its manufacturers to promote healthy hair growth. In this infographic, they claim it delivers energy to the skull at a concentration of 6.959 j/cm2 - ...
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1answer
1k views

Will coffee increase the growth of white hair?

I am curious about white hair: A friend told me that drinking coffee and tea would increase the number of white hair. There is a similar claim on the English Pravda site: Among other reasons of ...
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0answers
2k views

Do long-haired men have better intuition?

I found an article on Worldwide Hippies which describes a military experiment on the intuitive abilities of Native American trackers: Then they would pair two men together who had received the same ...
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0answers
166 views

Is there a link between hair color and the number of hair follicles?

I've heard that people with blond hair usually have significantly more strands of hair. I searched around online, but I can't find anything outside of some unsourced answers to more more broad Q&A ...
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0answers
158 views

Is bentonite a hair clarifier?

Pretty much every natural hair blogger out there (eg. Naptural85, CurlyNikki) has talked about how Bentonite clays get rid of lint and product buildup. However, I also see other bloggers using the ...
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508 views

Will applying beer on my hair make it appear shiny and lustrous?

There are numerous beauty sites that claim that applying beer on my hair will make it shiny and lustrous. Is this true?
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1answer
554 views

Do ionizing hair-dryers reduce frizz and drying time?

The new wave in Hair Dryer technology involves marketing benefits based on Ionization. Is there any evidence for any of this though? Conair® Turbo 1875: "Ionic technology helps enhance your hair's ...
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5k views

Does pulling out a grey hair make more grow?

I remember my mother telling me not to let other people yank any gray hairs or else more will come in its place. It has always stuck to me but wondering if it's true.
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1k views

What hair-care benefits come from adding fruit or fruit-extracts to shampoo?

Shampoo manufacturers seem to be very keen to tell us about the all the fruit and fruit-extracts they put in their product. I suspect that the hair-care actually comes from the other ingredients they ...
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1answer
1k views

Can an electric chair shock raise your hair?

What the title says- is it as it is often portrayed in cartoons?
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1answer
388 views

Does Finasteride reduce hair loss?

Several doctors told me by that taking Finasteride (AKA Proscar or Propecia), I have a better-than-even chance of reducing hair loss. This Wikipedia article cites one study the corroborates this claim,...
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1answer
26k views

Does castor oil cure baldness?

I've seen sites and pictures online that say castor oil cures baldness, complete with photos. While there are some commercial products available that claim to stop and reverse hair loss, using ...
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0answers
565 views

Do silicea capsules make hair thicker?

I had Silicea capsules suggested by a pharmacist as a food supplement which is supposed to help maintain healthy hair. The product is manufactured by hübner, entitled Original Silicea Capsules, the ...
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1answer
19k views

Do eyebrows grow back when shaved?

I have heard the claim that if you shave your eyebrows, they will never grow back. I have even heard that surgeons try as much as they can not to shave a person's eyebrows unless absolutely necessary. ...
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0answers
1k views

Can Monistat improve hair growth?

I was surprised to read in a Long Hair Care forum that people who spray diluted Monistat (the yeast-infection treatment!) onto their scalp significantly increases and accelerates hair growth. I can't ...
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2answers
19k views

Does washing your hair with a coal-tar soap prevent hair loss and accommodate hair growth?

I have heard several people, including both a former dermatologist and a hair-dresser claim that coal-tar soap can help prevent hair-loss. The Herbs and Home Remedies site recommends it (combined ...
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0answers
3k views

Is hair colour correlated with intelligence? [closed]

..for some commonly agreed-upon, objective, quantitative, non-discriminatory intelligence criterion. Before you rush to close this as a duplicate, yes, I am aware of this other question that treats ...