There is an increasing demand in general population regarding skin healthiness and improvement of aesthetical appearance, indicating that people require more information about how to treat healthy skin and to prevent skin disease. This study is the result of a campaign on healthy skin organized by the International Society of Plastic Dermatology. This campaign was at the same time an occasion to perform an epidemiological study on Italian population and was conducted during only one month (March 2004) throughout Italy. In total, 462 dermatologists all over Italy joined the project. Study protocol and diagnostic kits were provided to all adhering dermatologists. After signing an informed consent, subjects were assigned to undergo anamnesis, medical examination and stinging test with 10% lactic acid at the level of nasolabial fold. A total of 2101 duly compiled case record forms were sent back by the dermatologists. The analysis of the demographic features and lifestyle of the subjects who were attracted by the campaign allows us to draw the identikit of people interested in the maintenance of a healthy skin, i.e. mainly young women, who already lead a healthy life and took care of their skin. Sensitive skin was common in this healthy population.

Background: Injections of botulinum toxin type A in the forehead have never been reported to cause hair side effects. Objective: The aim of this paper is to report a new type of alopecia, which we have seen in women undergoing periodic injections of botulinum toxin type A for forehead wrinkles, and to differentiate it from other types of hair loss. Methods: We conducted an observational study on 5 females recruited from a private and an institutional practice who complained of progressive recession of the hairline after periodic injections of botulinum toxin type A in the forehead. Results: Alopecia of the frontal hairline was evident in all 5 patients, with absence of skin atrophy or scarring and progressive hair miniaturization at trichoscopy. Conclusion: Dermatologists should be aware of the possible occurrence of frontal alopecia after repeated injections of botulinum toxin type A for forehead wrinkles.

Sensitive skin is common in the healthy population. ISI can contribute towards the identification of subjects with sensitive skin and the development of more specific skin treatments for this prevalent condition.

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