Dong-A Pharmaceutical has launched a new advertising campaign for its acne scar treatment product, 노스카나겔. The campaign features Ailee's Wonhee and emphasizes the importance of consistent management for acne scars. 노스카나겔 has been the top-selling acne scar treatment product in Korea for 13 years, according to IQVIA sales data. | Dong-A Pharmaceutical has launched a new advertising campaign for its acne scar treatment product, 노스카나겔. The campaign features Ailee's Wonhee and emphasizes the importance of consistent management for acne scars. 노스카나겔 has been the top-selling acne scar treatment product in Korea for 13 years, according to IQVIA sales data.