Arief Huzaimi Md Yusof; Siti Salwa Abd Gani; Uswatun Hasanah Zaidan; Mohd Izuan Effendi Halmi. Design and Development of Topical Gel Bases Formulation of Cocoa (Theobroma Cacao) Shell Extract for Hair Gel. J. Adv. Res. Appl. Sci. Eng. Tech. 2022, 28, 139-148.