Inclusion Criteria:

• - Willing and able to provide informed consent.

Exclusion Criteria:

• * Has used topical or oral steroids two weeks prior to patch testing.
• * Currently taking immunosuppression agents or is immunocompromised due to medical condition.
• * No sunburn or rash at site of testing.
• * Women who are breastfeeding or pregnant.
• * Treatment with ultraviolet (UV) light (including tanning) during the two weeks prior to visit.
• * Subjects unable to comply with patch test study requirements including multiple return visits and activity restrictions (e.g., protecting patch test area from excess moisture due to showering).