Dermatological Assessment of Primary Dermal Irritability Accumulated, Sensitization, Photoallergy and Photosensitization of a Scar Gel

Inclusion Criteria: * Participants of both sexes aged 18 to 70 years; * Phototypes: I, II, III, and IV (For the phototest trial, only phototypes II and III will be considered); * Intact skin in the application area; * Willingness to follow the trial procedures and attend the center on the specified dates and times for medical evaluations and for application and reading of dressings; * Understanding, consent, and signing of the Informed Consent Form (ICF). Exclusion Criteria: * Pregnancy or risk of pregnancy/lactation; * Use of anti-inflammatory drugs within 30 days and/or immunosuppressive drugs up to three months before selection; * Immunosuppression due to drugs or active diseases; * Uncompensated endocrinopathies; * Personal history of atopy; * Intense sun exposure or tanning sessions up to 15 days before the evaluation or during the study period; * Plans to bathe in the sea, pool, or sauna during the study; * Practice of water sports during the study; * Dermographism; * Use of oral or topical treatments with vitamin A acid and/or its derivatives up to one month before the start of the study; * Aesthetic and/or dermatological treatments on the body within three weeks prior to selection; * Scheduled vaccination during the study period or within three weeks prior to selection; * History of sensitization, irritation, or photosensitization to topical products; * Active skin conditions (local and/or widespread) that could interfere with study results; * Skin reactivity; * Use of new medications during the study; * Previous participation in studies with the same product; * Congenital or acquired immunodeficiency; * Clinically significant or current evidence of alcohol or drug abuse; * Known or suspected history of intolerance to any ingredient in the study product; * History of non-adherence or unwillingness to adhere to the study protocol; * Employees of Medcin or the sponsoring company involved in the study, or close family members of an employee involved in the study; * Other conditions deemed reasonable by the researcher for disqualification from study participation. If applicable, this must be noted in the clinical record. Exclusion Criteria for the Phototest: * Previous history of conditions exacerbated or triggered by ultraviolet radiation; * Use of photosensitizing drugs; * History or presence of photodermatoses; * Personal or family history of skin cancer.