Fitri, R. , Reveny, J., Harahap, U., Dharmawan, H. and Nasri 2021. Anti-Acne Activity From Biocellulose Mask Formula Containing (Aloe Vera (L.) Burm.F) Essence Combined With Vitamin E. Indonesian Journal of Pharmaceutical and Clinical Research. 4, 1 (Apr. 2021), 1-7. DOI:https://doi.org/10.32734/idjpcr.v4i1.5382.