Skeptics Stack Exchange
Skeptics Stack Exchange

Questions tagged [hair]

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

56 questions
7
votes
0 answers

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?
Sabapathy
  • 261
  • 1
  • 6
6
votes
1 answer

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. Is there any evidence behind this claim? Will…
Ephraim
  • 1,828
  • 4
  • 19
  • 32
6
votes
0 answers

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 imagine what the mechanism is. Is there any…
CMM
  • 61
  • 2
6
votes
0 answers

Is dandruff an indicator of an "unhealthy scalp?" Can a shampoo cure the underlying problem?

In this video (sponsored by Head and Shoulders) by Veritasium entitled "What Actually Causes Dandruff?", you can hear Dr. Jim Schwartz a Research Fellow at Head & Shoulders say: The dandruff flakes are just an indicator of a fundamentally unhealthy…
Evan Carroll
  • 28,401
  • 42
  • 129
  • 239
6
votes
1 answer

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 the scientific reasoning. Online research did…
the-lights
  • 77
  • 1
  • 1
  • 3
6
votes
0 answers

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 Your Beard Super Fast All Natural Oils Its reviews are a…
YungHummmma
  • 191
  • 5
6
votes
0 answers

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 overheating and sunburn. The claim seems to be…
Edward G-Jones
  • 583
  • 5
  • 17
6
votes
0 answers

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 sites. Is there any proof that the number of hair…
Ullallulloo
  • 318
  • 1
  • 9
5
votes
0 answers

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 description says: thicker hair firmer…
automaciej
  • 267
  • 1
  • 7
5
votes
1 answer

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 me wonder: Is there any scientific evidence to…
DaaaahWhoosh
  • 153
  • 1
  • 7
5
votes
1 answer

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 - presumably they are referring to 6.959 J/cm2. . This is…
RocketRuwan
  • 51
  • 1
  • 5
4
votes
1 answer

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 into a melanoma). Has there ever been a study…
gebruiker
  • 177
  • 10
4
votes
2 answers

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 of site trying to sell the latest super-herb, so…
Sean Duggan
  • 6,438
  • 2
  • 37
  • 60
4
votes
0 answers

Can the shampoos harm the hair or the head skin?

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 DAY Most men don't need to wash their hair every day. Too…
blackcornail
  • 419
  • 4
  • 8
4
votes
0 answers

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 weak, dull and brittle hair fibre, prone to…
Einenlum
  • 1,293
  • 1
  • 7
  • 21
1 2
3
4