Simarmata Y, Syamsul D, Ardiani R, Naldi J. Formulation of Red Spinach Leaves (Amaranthus tricolor L.) Ethanol Extract Gel Dosage Form on Anti-Aging Activity. JBT [Internet]. 2024 Dec. 7 [cited 2024 Dec. 22];24(1b):25-34. Available from: http://jurnalfkip.unram.ac.id/index.php/JBT/article/view/8061