They did not study the effects on skin pigmentation, but this study did reaffirm the rapid absorption of reduced glutathione from oral mucosa to reach high serum concentrations which can have therapeutic value in many areas
Thromb Haemost 77 : 466471
Previous studies in mice have reported that matched, unbiased agonists are less effective at controlling glucose and body weight than GLP-1RAs with bias similar to that of tirzepatide [35, 36]
Blancquaert L, Baguet A, Bex T, Volkaert A, Everaert I, Delanghe J, Petrovic M, Vervaet C, De Henauw S, Constantin-Teodosiu D, Greenhaff P, Derave W
Such distinction from other diluents is explained in guides comparing bacteriostatic water vs reconstitution solution