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How Allergy Testing Works

At SkinDC, we offer the NAC-80 North American 80 Comprehensive Series. The series consists of 80 of the top allergens that may cause an individual to develop contact dermatitis.

Contact Dermatitis – Direct Contact with an Allergen

These are so-called cell-mediated immunity, also called Type 4 allergies (delayed hypersensitivity). The hapten (allergen) that trigger symptoms are often simple chemicals. The most common disease caused by contact allergy is contact allergic dermatitis.

Other common causes of allergic contact dermatitis are substances in:

  • Cosmetics
  • Fragrances
  • Preservatives
  • Certain drugs for topical use
  • Hair dye
  • Hygiene products
  • Chemical products

Contact allergy cannot be cured but is something you will have to learn to live with.

Watch YouTube Video: Patch Testing at SkinDC

Schedule My Patch Testing


What is a patch test and how will it look like?
For how long do I have these patch tests on me?
What should I consider during test time?
The patch test is getting loose, what should I do?
What should I do if I itch during the patch test?
What are the benefits of knowing what I’m allergic to?
It turned out that I was not allergic to any of the tested substances, what do I do now?