Facial Toner Containing 2% Arbutin and 3% Niacinamide Improves Pore Appearance, Uneven Skin Texture, and Skin Brightness Measured by Individual Typology Angle

Facial skin appearance is a critical psychosocial component in today's consumer culture, leading to an increase in people taking care of their appearance by using skincare products. With various topical active ingredients in skincare, arbutin and niacinamide are among the safest and most effective for improving hyperpigmentation. This study assesses the efficacy of a Facial Toner containing 2% Arbutin and 3% Niacinamide, which was developed to improve the appearance of pores, uneven skin texture, and brightness. The test material was a Facial Toner containing 2% Arbutin and 3% Niacinamide. Volunteers with varying skin phototypes applied the toner twice daily for four weeks, and a dermatological clinical efficacy study was conducted. Efficacy was assessed subjectively by photographs and self-perception questionnaires and objectively by expert grading and CIEL*a*b* measurements. Expert grading demonstrated significant improvement in the appearance of pores, skin brightness, and uneven skin texture. Colorimetry measurements further support the improvement of facial skin tone and brightness after four weeks. Furthermore, these results demonstrated a significant increase in the Individual Typology Angle (ITA°) of 23% of volunteers, leading to a change in their skin color subtype. Additionally, volunteers noticed substantial improvements in smoothness (96.8%) while observing that their skin was looking more radiant (93.6%) and youthful (87.1%). Our Facial Toner containing 2% Arbutin and 3% Niacinamide improved the appearance of pores and uneven skin texture, demonstrating a noticeable enhancement in skin brightness and leaving users with a more radiant and youthful complexion.