Open-Label Test of the HM242 Medical Devices to Evaluate Safety and Local Tolerability

Inclusion Criteria: * Generally healthy male or female subjects aged ≥ 18 years and ≤ 65 years. * Healthy skin on the upper arms * Skin type visually assessed from pale white to light brown * Females with childbearing potential must have a negative urine pregnancy test at baseline and must agree to use a highly effective method of contraception for the duration of the clinical investigation. * Provide a personally signed and dated informed consent indicating that the subject has been informed of all pertinent aspects of the trial prior to any trial-related activity and that all information has been understood Exclusion Criteria: * Breastfeeding or pregnant women * Extremely tanned skin that may interfere with the tolerability assessment based on Investigator judgment * Subjects with known or suspected allergies or skin hypersensitivity (e.g. acute dermatitis) * Subjects with known or suspected allergies or hypersensitivity to any of the components of the Investigational Medical Devices * Any illness or circumstance that could affect the trial purpose in the opinion of the investigator (e.g. intensive UV exposure) * Dermatologic diseases or skin conditions (e.g. tattoos, multiple birth marks in the test area) that might interfere with the evaluation of test site reaction * Within 3 weeks prior to Day 1 and during the entire trial: Any systemic or topical medication or therapy likely to interfere with the trial purposes: e.g. immune-modulating or immunosuppressive therapy (e.g. corticosteroids, cytotoxics, cyclosporine or radiotherapy). * Within 7 days prior to Day 1 and during the entire trial: any topical dermatological agents applied on the upper arms (drugs or medical device), except usual skin care preparations and skin cleansing preparations like anionic tensides, cleansing soaps ointments, oils, enzymes, etc. (not allowed on test areas during the trial) * During the entire trial: exposure to sunlight that could lead to sunburns or photo sensibilization reactions