Comprehensive Dermatological and Ophthalmological Evaluation of a High Tolerance Sunscreen: Clinical Benefits in Rosacea Patients with Sensitive Skin Across Light to Dark Phototypes in a Brazilian Study

Rosacea patients frequently require consistent photoprotection to prevent symptom exacerbation triggered by ultraviolet exposure, heat and visible light. However, sunscreen use remains challenging in this population due to frequent cutaneous intolerance, sensory discomfort and ocular irritation, particularly in individuals with sensitive skin, which may compromise adherence. Moreover, rosacea is clinically assessed mainly in lighter phototypes, while in darker phototypes the condition is less visible and requires complementary evaluation through sensitivity-related and functional parameters. The aim of this study was to assess the dermatological and ophthalmological tolerance and clinical and functional efficacy of a sunscreen specifically formulated for sensitive skin, including subjects presenting rosacea, under real-use conditions, in women and men representing all skin phototypes.

The clinical study was conducted in Rio de Janeiro (Brazil) from May to June (5 to 7 hours of sunshine per day), for 28 days. 

31 adults (women and men aged 18 to 65 years old) with all skin types (from dry to oily) and various phototypes (I to VI) completed the study and were analyzed. All phototypes had skin sensitivity, particularly to the sun, and, additionally, phototypes I to IV (18 subjects) presented with mild to moderate rosacea.

Application of investigational sunscreen on face, neck and periocular area at least twice daily (reapplication in case of prolonged sun exposure).