Among its many physiological and biochemical effects, cortisol increases blood sugar and mental alertness to prepare for fight or flight, increases blood pressure, and attenuates immune system function
VitaHealth L-Glutathione Plus Why its on the list: A long-standing brand in Singapore, VitaHealth combines L-glutathione with vitamin C to enhance absorption and skin benefits
As a coenzyme in methyl transfer reactions, B12 converts homocysteine to methionine, and participates in L-methylmalonyl-coenzyme A (CoA) conversion to succinyl-CoA (8)
Individually wrapped, each sachet contains 2 under eye Lint Free Gel patches
doi: 10.3389/fnut.2026.1770381 Received 18 December 2025 Revised 06 January 2026 Accepted 13 January 2026 Published 22 January 2026 Volume 13 - 2026 Edited by Jing Gao, National Engineering Research Center for Oil Tea, China Reviewed by Jiayi Su, Chinese Academy of Sciences (CAS), China Chengjun Hu, Chinese Academy of Tropical Agricultural Sciences, China Updates Copyright 2026 Ma, Azad, Yu, Sun, Zhang, Pi and Wu