Damayanti, I.S. and Minerva, P. 2023. The Relationship of Facial Skin Personal Hygiene to The Onset of Acne (Acne Vulgaris) in Adolescent Boys. International Journal of Natural Science and Engineering. 7, 2 (Nov. 2023), 112–119. DOI:https://doi.org/10.23887/ijnse.v7i2.62085.