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  • Question 1/15

    How many women color their hair?

  • Answer 1/15

    How many women color their hair?

    • You answered:
    • Correct Answer:

    About three out of four women dye their hair. Some do it to cover gray or to make a fashion statement. Some just want a change.

  • Answer 1/15

    If you use permanent dye, how can you protect your hair?

    • You answered:
    • Correct Answer:

    Permanent hair color causes more damage to hair than other types of dye. It chemically changes your hair, weakening the shaft and making it dry and brittle.

     

    Protect your hair by using shampoo and conditioner with silicone, an ingredient that can minimize damage.

  • Question 1/15

    Bleaching your hair will make it fall out.

  • Answer 1/15

    Bleaching your hair will make it fall out.

    • You answered:
    • Correct Answer:

    Bleaching your hair gets rid of color, leaving it white or yellowish white. Bleaching can make your hair dry, brittle, and more fragile -- just like dyeing it can. But it shouldn't make it fall out.

     

    When new hair grows in, it won't be affected by the bleach. So it will be healthy.

  • Answer 1/15

    How long should you wait between colorings?

    • You answered:
    • Correct Answer:

    Coloring your hair more often may cause damage that can't be fixed, like split ends and dryness.

     

    To keep your color, you only need to re-dye the roots that start to show. Hair grows about 0.3 mm to 0.4 mm per day. That means in four weeks you'll have just a little more than 1/3 of an inch of roots showing.

  • Question 1/15

    What can damage color-treated hair?

  • Answer 1/15

    What can damage color-treated hair?

    • You answered:
    • Correct Answer:

    It's called "weathering" -- environmental damage that leads to dry, frazzled-looking hair.

     

    To protect your hair, watch how often you swim in chlorine-treated pools or saltwater. Wash your hair less often. And keep your hair out of the sun. UV rays can make your color fade.

  • Question 1/15

    You should use the same dye to color your eyebrows to match your hair.

  • Answer 1/15

    You should use the same dye to color your eyebrows to match your hair.

    • You answered:
    • Correct Answer:

    No way. Never use hair dye on your eyebrows or eyelashes. It can cause a serious reaction if you get it in your eye. That's why hair dyes are banned for eyebrows and eyelashes -- even in salons.

     

    It looks fine if your eyebrows are a little lighter or darker than your hair. But if you want to darken them, try an eyebrow pencil, powder, or gel specifically made for eyebrows. You can also color your brows with a temporary tint that you apply like mascara.

  • Question 1/15

    Why is it a good idea to change your hair color as you get older?

  • Answer 1/15

    Why is it a good idea to change your hair color as you get older?

    • You answered:
    • Correct Answer:

    Our skin becomes thinner as we get older. So if your hair is really dark, it can make you look pale. If your hair is really light, it can wash out your complexion.

     

    For a natural look as you get older, some experts recommend that brunettes go one shade lighter than their base color and blondes go one shade darker.

  • Question 1/15

    How many men over 40 dye their hair?

  • Answer 1/15

    How many men over 40 dye their hair?

    • You answered:
    • Correct Answer:

    Men want to look younger, too. About one in 10 men color their hair now. The number has gone up over the past 10 years -- especially with men 50 to 64.

  • Question 1/15

    How many chemicals are used in hair dye?

  • Answer 1/15

    How many chemicals are used in hair dye?

    • You answered:
    • Correct Answer:

    All that bleaching, buffering, and conditioning involved with the coloring process -- not to mention the wide variety of colors and processes out there -- involves a lot of chemical action.

  • Question 1/15

    To find out if you’re allergic to a specific hair dye, you should smell it to see if it makes you cough or sneeze.

  • Answer 1/15

    To find out if you’re allergic to a specific hair dye, you should smell it to see if it makes you cough or sneeze.

    • You answered:
    • Correct Answer:

    The best way to see if you're allergic is a patch test. That means dabbing a little bit of dye on the inside of your elbow or behind your ear and waiting two days. If you get a rash, you're allergic.

  • Question 1/15

    It's OK to mix different hair color products to get the perfect shade.

  • Answer 1/15

    It's OK to mix different hair color products to get the perfect shade.

    • You answered:
    • Correct Answer:

    Mixing different products together at home can hurt your hair and your scalp. If you can't find the color you like in a box, leave it to a trained salon worker to mix up the perfect shade.

  • Question 1/15

    Henna usually gives you shades of which color?

  • Answer 1/15

    Henna usually gives you shades of which color?

    • You answered:
    • Correct Answer:

    Henna -- a natural, semi-permanent dye made from the leaves and roots of the mignonette tree -- usually gives you a brown, orange-brown, or reddish-brown tint. Other ingredients can be added to it to make other colors, such as black and blue.

  • Question 1/15

    Which hair dye ingredient is banned in some parts of the world but allowed in the U.S.?

  • Answer 1/15

    Which hair dye ingredient is banned in some parts of the world but allowed in the U.S.?

    • You answered:
    • Correct Answer:

    Lead acetate is found mainly in gradual (progressive) hair dyes, which are usually used by men to cover gray hair over a few weeks. It's classified as a "probable human carcinogen," based on animal lab tests.

     

    Products that have lead acetate are banned in Europe and Canada. The FDA said they can be used safely if you follow the instructions carefully and keep them away from kids.

  • Answer 1/15

    Why do semi-permanent dyes fade so fast?

    • You answered:
    • Correct Answer:

    The pigment molecules in semi-permanent coloring are small enough to get inside the hairs, with some molecules going deeper than others. When you shampoo, the larger pigment molecules wash away first. That changes your color each time you wash your hair.

  • Question 1/15

    It's safe to color your hair when you're pregnant.

  • Answer 1/15

    It's safe to color your hair when you're pregnant.

    • You answered:
    • Correct Answer:

    When you dye your hair, a little bit of chemical can get absorbed through your skin. But most research suggests that this small amount of dye won't hurt a developing baby.

     

    Some pregnant women switch to highlights because it uses fewer chemicals. Or they use pure vegetable dyes, like henna. But if you color your hair yourself, be sure to leave the dye on for the shortest amount of time and work in a well-ventilated room.

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Sources | Reviewed by Debra Jaliman, MD on October 03, 2016 Medically Reviewed on October 03, 2016

Reviewed by Debra Jaliman, MD on
October 03, 2016

IMAGE PROVIDED BY:

Getty (Thinkstock)

 

SOURCES:

Alpert, A. Milady’s Standard Cosmetology , Milady Publishing Company, 2004.

American Academy of Dermatology: "Causes of Aging Skin."

American Cancer Society: "Hair Dyes."

American Family Physician: "Evidence-Based Prenatal Care: Part I."

American Hair Loss Association: "Hair Science."

Michele Bopp, instructor, Paul Mitchell School, Atlanta, GA.

Cancer.gov: "Hair Dyes and Cancer Risk."

Dayan, S. Cosmetic Dermatology , June 2011.

DOE Office of Science, Ask a Scientist: "Bleached Hair."

European Commission Consumer Affairs: "List of 76 substances allowed for restricted use in hair dye."

FDA: "Color Additive Status List," "Hair Dye and Hair Relaxers," "Q&A: Hair Dyes," "Temporary Tattoos & Henna/Mehndi," "Lead Acetate in 'Progressive' Hair Products."

Hair Foundation: "Hair Coloring & Dyes."

Hazardous Substances Data Bank: "Lead Acetate."

International Society of Hair Restoration Surgery: "The Weathering of Hair."

KidsHealth.org: "Hair Dyes," "Caring for Hair."

Library of Congress: "Why Does Hair Turn Gray?"

MetricConversions.org: "Millimeters to Inches Conversion."

NHS: "Is it safe to use hair dye when I’m pregnant or breastfeeding?"

National Cancer Institute: "Hair Dyes and Cancer Risk."

Occupational Airways: "Hairdressers and Work-Related Respiratory Disease."

Organization of Teratology Information Specialists: "Hair Treatments and Pregnancy."

Sherrow, V. Encyclopedia of Hair: A Cultural  History , Greenwood Press, 2006.

The Exploratorium, Exploring Online: "Better Hair Through Chemistry."

U.S. Dept. of Health & Human Services Household Products Database:  "Lead Acetate."

 

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