Famous Hair Dye Allergy Test You Must Know
Before using any type of hair dye it is important to first test for hair dye allergies. The allergy test is called a "patch test;" it can be administered right in your own home. Determine which type and color of hair dye you are going to use. Open the package and pour a few drops of the color into a small bowl.
Hair dye brand names can be deceiving, since some include words like “natural” or “herbal” on their boxes. Learn more about hair dye allergy, including signs of a reaction and how to treat it.
How to avoid a reaction to hair dye Patch test. Always carry out a patch test before using a permanent or semi-permanent hair dye, even if you are using your regular brand. This usually involves dabbing a small amount of the dye solution behind your ear or on your inner elbow and leaving it to dry. Follow the instructions that come with the dye.
If any symptoms of a hair dye allergy show up, the hair should be washed immediately. The excess dye can be removed through multiple gentle washes with a mild soap and plenty of rinses with clean.
The most common form of hair dye allergy manifests as contact dermatitis, an itchy, flaky rash.Generally, this is the result of an allergen that comes into contact with the skin, which then elicits an immune response from the body: antigens form and interact with T-lymphocytes (part of the immune system's defense mechanism), and this triggers a release of inflammatory cytokines, which causes a.
The best treatment for hair dye allergy is prevention. So always do a patch test before using any new product, especially a hair dye. If you have developed allergy to a hair dye, then immediately remove the dye by washing your hair with a mild soap or with a soapless shampoo. Wash thoroughly to remove any surplus hair dye.
Research was published in Contact Dermatitis looking at the instructions hair dye manufacturers give consumers about performing an allergy self-test before coloring their hair. It was a follow-on from a 2011 study, which found great variability in the instructions given, and whose authors expressed concern about the safety and reliability of the methods recommended.
An allergy to hair dye is quite rare, affecting about one in 250,000 people, says Debra Jaliman, MD, a New York City-based dermatologist and author of Skin Rules. Still, it can prove to be just as.
Until recently, I thought that patch tests - when a hairdresser tests a dye on a small patch of your skin, at least 48 hours before you dye your hair, in order to check for reactions - were an.
To do a more accurate allergy test, you should perform a separate patch test by applying a small amount of dye to your inner elbow and observing your skin after 48 hours. If you notice any redness, itching, swelling, or pain with either a strand or patch test, you should wash off the dye immediately and not use it again. 
Only a small concentration of 2% PPD is allowed in hair dye, and the kind Estelle used reportedly only had 1%. So, properly patch-testing to check for an allergy is critical.