Hair Coloring

Hair Coloring

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    A , Cardiology (Cardiovascular Disease), answered
    Hair coloring can cause adverse reactions such as burning, redness, and irritation, especially if you are sensitive to any of the ingredients in the dye. If you're allergic to the dye you might develop a rash or even blisters.

    Before using hair dye at home or having your hair colored at a salon, you or the colorist should do a patch test to make sure you won't have a bad reaction. Place a small amount of the dye on the inside of your elbow or behind your ear, and leave it there for two days. If you haven't had a reaction in two days, the dye should be safe to use on your head.

    If you're using hair dye at home, be sure to read and follow the package instructions carefully. Never use hair dyes on your eyelashes or eyebrows.

    If you have any concerns about adverse reaction to hair coloring products, talk with your doctor or dermatologist.
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    Large terminal scalp hair shafts are composed of three distinct zones or parts - the medulla, the cortex, and the cuticle. The cuticle is a protective protein covering constructed in a sort of overlapping scale configuration. The cortex constitutes the majority of the hair shaft and contains the pigmenting that determines the color of the hair. In order to change hair color significantly, one's actual hair color must be neutralized so that the hair can be re-colored with hair dye of a chosen shade. A bleaching solution consists of an alkaline component that opens the cuticle and a bleaching component that irreversibly oxidizes the melanin pigment of the cortex, leaving the hair shaft the whitish to yellowish color of the keratin protein. Artificially coloring the hair is a two-part process consisting of first bleaching the hair, and then re-coloring the bleached hair with a dye. Bleaching and artificial coloring of the hair can be a damaging to the integrity of the hair and should be undertaken with care.

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    A , Cardiology (Cardiovascular Disease), answered
    The best hair dye for you may depend on the color change you are looking for. If you want to be able to wash out the color with shampooing, then using a natural dye, such as henna, or a semi-permanent commercial brand product may be best. If you want hair color that won't wash out, look for a permanent hair coloring product.

    No matter what type of hair coloring product you choose, make sure to follow the package directions carefully, wear plastic gloves when applying the dye, and apply it only to the hair on your head, never to your eyebrows or eyelashes.

    The Food and Drug Administration (FDA) also recommends doing a patch test before you apply hair color all over your head, as in some people hair coloring products may cause skin irritation or even allergic reactions. To do a patch test, rub a little bit of the dye on the inside of your elbow or behind your ear and wait two days. If a rash results, do not apply the hair color to your hair. If your skin has no reaction, it is probably safe to use the hair color on your head.
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    A answered
    You can lighten your brows to make them appear more subtle, but don’t try bleaching your own brows at home. “They can turn orange,” celebrity brow expert Anastasia Soare told us. “Instead, try semi-permanent hair color in a lighter shade, and leave it on for just one minute. It’s safer to do it again in a few days (if you still want to go lighter).”
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    Research on personal hair dye use and risks of bladder and breast cancer has produced conflicting results. Data from multiple studies have been pooled as a way of analyzing the risks of these cancers among hair dye users.
    An analysis of pooled data from 12 studies of bladder cancer and hair dye use published between 1977 and 2006 found no evidence that personal use of hair dyes is associated with increased risk of bladder cancer.
    Researchers who reviewed data from 14 studies of female breast cancer and hair dye use published between 1977 and 2002 found that dye users had no increase in the risk of breast cancer compared with nonusers.
    Research on hair dye use and the risks of other cancers is more limited. Although some studies have shown associations between hair dye use and risk of developing or dying from specific cancers, these associations have not been seen in other studies. Because of differences in study design, it has not been possible to pool the results of studies of most cancers.
    This answer from the National Cancer Institute has been reviewed and/or edited by Dr. William D. Knopf.
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    A , Cardiology (Cardiovascular Disease), answered
    1 157 03 what hair color says about health
    Hair color can be related to  different health conditions or diseases.

    To learn more about the relationship between hair color and health, watch this video by Dr. Oz. 



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    Lead acetate is used as a color additive in "progressive" hair dye products. These products are put on over a period of time to produce a gradual coloring effect. You can safely use these products if you follow the directions carefully. This warning statement must appear on the product labels of lead acetate hair dyes:

    "Caution: Contains lead acetate. For external use only. Keep this product out of children's reach. Do not use on cut or abraded scalp. If skin irritation develops, discontinue use. Do not use to color mustaches, eyelashes, eyebrows, or hair on parts of the body other than the scalp. Do not get in eyes. Follow instructions carefully and wash hands thoroughly after use."

    This answer is based on the source infromation from the National Women's Health Information Center.

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    A answered
    For locks that are about 20 to 25% gray, use a demi- or semi-permanent hair color that’s closest to your natural tone in order to blend away the grays with minimal damage to the hair. Both types deposit color without ammonia, but the demi-permanent color "uses a stronger concentration of hydrogen peroxide to open up the hair cuticle and inject more color," Perry Romanowski, a cosmetic chemist in Chicago, told us. As a result, demi-permanent color lasts almost twice as long as semi-permanent.  Semi-permanent color delivers a rich, shiny color but fades out in six to 12 shampoos.

    If more than half of your hair is gray, go the permanent color route. Permanent hair color contains ammonia which opens the hair cuticle to allow the color to penetrate.

    Many colorists advise not taking on the challenge of coloring gray hair yourself -- at least not the first time. Keep in mind that if things go haywire as you DIY, the color correction can cost more than a regular salon visit for coloring.
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    Coloring your hair can cause damage to your scalp if you're allergic to the dye.

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    A , Cosmetology, answered
    Coloring your hair to hide the gray is a great way to hide the telltale signs of aging. Choose a color that is close to your original color, so it naturally complements your facial tones. If you like, consider highlights or lowlights, since they do not require redoing as often.