The concern with many glutathione supplements is that they cannot be orally ingested without being digested into single amino acids prior to absorption
Yang M, Tsui MG, Tsang JKW, Goit RK, Yao KM, So KF, et al
Vitvitsky V, Thomas M, Ghorpade A, Gendelman HE, Banerjee R (2006) A functional transsulfuration pathway in the brain links to glutathione homeostasis
However, the dose-dependent nature of it, the frequency as well as the duration in the sauna to me is very is very much, uh, reassuring that there is, uh, more of a causality that can be established, you know, because its just you-you just wouldnt see that if it was like some other effect, right, like a its like a you know, having the-the healthy user bias kind of effect, not to mention they corrected for all kinds of problems, you know, high lipids, exercise, socioeconomic status, like anything, you name it
However, many supplements, including the two below, utilize more citrulline, as is commonplace in the pre-workout category
1.0-6 min, 540% B