The role of the skin irritation response in polysensitization to fragrances.

Background: Contact allergy to fragrance chemicals is an increasing problem. Polysensitization is likely to be a phenotype of increased susceptibility to contact allergy. The factors that play a role in polysensitization are largely unknown.

Do 'cinnamon-sensitive' patients react to cinnamate UV filters?

Background: Use of sunscreens has increased dramatically worldwide, and some sunscreen chemicals may be allergens. Ultraviolet (UV) filters are added to various cosmetic products. Cinnamate UV filters are structurally related to cinnamon-related fragrances.