Phase I Enzyme Polymorphisms Genetically determined defects in the phase I oxidative metabolism of several drugs have been reported ( Table 44 )
Dermatology research here is genuinely mixed some studies show topical and oral glutathione reducing UV-related damage and improving tone evenness, but a 2025 systematic review in a peer-reviewed dermatology journal was direct about it: evidence for dramatic skin-lightening is limited, and the ethics of marketing it that way are actively debated among dermatologists
It promotes faster regeneration of epithelial cells that line the stomach and intestines
Tonnus W, Meyer C, Steinebach C, Belavgeni A, von Mssenhausen A, Gonzalez NZ, et al
[13] Lastly, black seed oil has also been shown to have a gastroprotective effect on the formation of stress-induced gastritis