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Why is Nickel Allergenic?

  1. Dec 4, 2011 #1
    Nickel allergy is a very common allergy. It causes contact dermatitis. But why is it allergenic, being a metal. Recall that allergies are caused by an immune response. What exactly are you reacting to -- the nickel metal itself??
  2. jcsd
  3. Dec 4, 2011 #2


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    Gold Member

    Well a quick Google turns up this:

    Sorry, I meant this:

  4. Dec 5, 2011 #3
    Interesting! Thank you.
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