The sulfhydryl group is the most important functional group of reduced glutathione
Glutathione Glutathione is a ubiquitous thiol-containing isotripeptide (-glu-cys-gly, FW 307.3), consisting of glycine, glutamic acid and cysteine molecules which was first discovered by Sir Fredrick Gowland Hopkins in 1920s, synthesized de novo in mammalian cells (Figure 1)
S.NorenbergM
[PubMed: 13726547] 459
If a serum turns yellow too fast, irritates your skin, or stops showing results after a month, that is a formulation issue
Adv Funct Mater 34(14):2312308 Tang Y, Wang H, Guo C, Wang L, Zhao T, Yang Z et al (2024) F-coordinated single-atom Ru species: efficient and durable catalysts for photo-thermal synergistic catalytic CO2 hydrogenation to methane