Laksmi, I Gusti Ayu Agung Mini, I Gusti Ayu Agung Praharsini, I Gusti Ayu Agung Dwi Karmila, Luh Made Mas Rusyati, Nyoman Suryawati, and Ketut Kwartantaya Winaya. “Effect of 8% Purple Sweet Potato Extract Cream on Wrinkle Reduction, Skin Moisture, and Elasticity”. Berkala Ilmu Kesehatan Kulit dan Kelamin 37, no. 1 (March 31, 2025): 1–8. Accessed July 30, 2025. https://e-journal.unair.ac.id/BIKK/article/view/58615.