Assessment of in vitro, in vivo, and Clinical Safety of SIRTMAX® a Standardized Kaempferia parviflora Rhizome Extract 【2022】 Chin Piow Wong 1), Yukiko Kobayashi 1), Jinwei Yang 1) 1) Tokiwa Phytochemical Co., Ltd. Jpn Pharmacol Ther 50 (10) 1889-1899 (2022)