Healthline. https://www.healthline.com/health/beauty-skin-care/glycerin-soap#is-it-hypoallergenic
Diakses pada 27 Februari 2021Science Daily. https://www.sciencedaily.com/releases/2003/12/031203075525.htm
Diakses pada 27 Februari 2021Sea Tree. https://www.seatree.org.uk/blog/is-glycerin-soap-good-for-your-skin/
Diakses pada 27 Februari 2021