oxidized glutathione gssg A black hole for Cited in 3 publications Concentration of oxidized glutathione (GSSG),
Description
It starts deeper and by the time a dark spot is visible, several things have already happened underneath the skin

McGilvray KC et al

However, despite the many clinical applications of NO, the physiological changes depend on its concentration, which is difficult to control because of its short half-life [31]

[DOI] [Google Scholar] 57.Serna-Escolano V., Gimnez M.J., Castillo S., Valverde J.M., Martnez-Romero D., Guilln F., Serrano M., Valero D., Zapata P.J

Gene therapy for CNS disorders: modalities, delivery and translational challenges

Call it the peptide = proven loophole
