Skeptics Stack Exchange
Skeptics Stack Exchange

Questions tagged [hair]

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

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Is hair colour correlated with intelligence?

..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 this problem. However, the accepted answer fails to…
mindcorrosive
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Does hair grow faster in the sun?

I've been told that hair grows faster when you are in the sun, is there any truth to that or is it a myth among people in a sun starved country? :) Related: Does plucking/epilation impact hair growth? If you shave or wax, will the hair grow back…
Kit Sunde
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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 put in it. Is shampoo with added fruit really…
billpg
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Do biotin supplements increase hair growth and strength?

There many websites selling biotin suplements claiming that they will make hair grow stronger and faster. Here are two examples: Hair Growth Vitamin Bio-info Hair Growth Biotin deficency is shown to cause some problems including hair loss. But a…
Amy B
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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 would increase the blood supply in the lateral part…
Brian Hellekin
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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.
damx
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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 hair graying are excessive intake of tea, coffee and…
Sabapathy
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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, but it leaves some important questions…
user7658
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Is it possible to get a reliable match from 'microscopic hair analysis'?

In her 1999 memoir, 'Lucky', Alice Sebold describes being raped and the arrest and conviction of the male perpetrator, which took place in 1981-1982. Several months after she was raped, a man passed her on the street and made a comment which she…
thelawnet
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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 to Google this phenomenon, and I stumbled upon a…
samthebrand
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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?
user21559
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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 infant will lead to thicker and stronger hair later.…
skept101
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Can an electric chair shock raise your hair?

What the title says- is it as it is often portrayed in cartoons?
nullpotent
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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 home remedies work too. Castor oil for hair loss is one…
Charles Lambert
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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 Awakens dormant hair follicles Increases growth factors for more…
Digityogi
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