Human skin primary irritation test
The subject pool consisted of thirty healthy women and
over ranging from 24 to 47 years of age. The subjects
were required to satisfy all of the inclusion criteria and
could not conflict with any of the exclusion criteria.
Exclusion criteria were acute diseases, severe illnesses,
pregnancy or lactation period, sensitization to ingredients of the test plaster, application of pharmaceutical
products or skin care products with active ingredients
until 4 weeks before testing, intake of drugs that possibly
can interfere with skin reaction (steroids, anti-allegics,
topical immuno-modulator, etc.) and extremely tanned
skin. The subjects were required to be clearly informed
regarding the nature of the study, the timetable, constraints and possible risks, both verbally and in writing.
The average age of the subjects was 38.1 years. The subjects had no history of allergic contact dermatitis and
had not used topical or systemic irritant preparations in