Clinical Evaluation of an Atopic Skin Product Containing Picea Abies Resin Extract

Inclusion Criteria: * Healthy male and female subjects aged 18 to 60 years. * Caucasian ethnicity. * Subjects with atopy-prone skin on cheekbones and forearms, characterized by sensitive/reactive skin, redness, or itching. * Transepidermal water loss (TEWL) thresholds at screening: Cheekbones ≥ 20 g/m\^2/h and Forearms ≥10 g/m\^2/h. * Stable pharmacological therapy for at least one month without planned changes. * Subjects aware of study procedures and having signed an informed consent form. Exclusion Criteria: * Acute or chronic diseases liable to interfere with study data or subject safety. * Participation in other clinical trials or insufficient washout period (14 days). * Known hypersensitivity or allergy to any ingredients in the test products. * Use of pharmacological treatments considered incompatible with the study requirements. * Presence of skin diseases that could interfere with instrumental measurements. * Pregnant or breastfeeding women, or women of childbearing potential unwilling to use precautions to avoid pregnancy.