ABSTRACT
It is difcult to nd accurate parameters for categorizing skin as sensitive or nonsensitive; this condition often lacks visible, physical, or histologically measurable signs. Subjects with sensory irritation tend to have a less hydrated, less supple, more erythematous, and more teleangiectatic skin compared to the normal population. In particular, signicant differences were found for erythema and hydration/dryness [1]. Tests for sensitive skin are generally based on the report of sensation induced by topically applied chemicals. Consequently, the use of self-assessment questionnaires is a valuable method to identify “hyperreactors” [2] and a useful tool for irritancy assessment of cosmetics [3].
