“Formulasi Masker Gel Peel Off Arang Aktif Dari Cangkang Kelapa Sawit(Eleis Quinemis Jacq) Sebagai Pembersih Wajah Dengan Basis Polivinil Alkohol (Pva): Formulation Gel Peel Off Mask of Activated Charcoal from Palm Shell As Facial Cleanser With Base Polyvinyl Alcohol (PVA)”. Talenta Conference Series: Science and Technology (ST) 2, no. 2 (June 30, 2019). Accessed May 1, 2026. https://talentaconfseries.usu.ac.id/index.php/st/article/view/505.