Optimization and Formulation of Skin Lotion Contating Butterfly Pea (Clitoria ternatea) Flower Extract and Study on its Antioxidant ActivityErindyah Retno Wikantyasning and Tianur Tri WahyuniBIO Web Conf., 135 (2024) 03001DOI: https://doi.org/10.1051/bioconf/202413503001