Tio, R. M.; Rosyadah, N.; Novizar, N.; Rini, R.; Anggraini, T.; Ahmed, U.; Refdi, C. W.; Syukri, D. Investigation of the Effect of Heating Duration in Gambier (Uncaria Gambir Roxb.) Processing on Its Phytochemical Composition and the Resulting Characteristics of a Gambier-Based Acne Balm Product. J. appl. agricultural sci. technol. 2025, 9, 371-384.