glutathione power 700 Liposomal Setria® 700mg Royale Gluta Power 462 and
Description
The GIP component may also help preserve lean mass through its effects on insulin sensitivity in muscle tissue
Everything was just as expected

Rectal absorption could be also compared to transdermal (through the skin) absorption due to the anatomy of the rectum

Trichoplusia ni cell pellets were suspended in 30 mM HEPES (pH 7.4), 50 mM NaCl, 5 mM CaCl 2 , 2 mM MgCl 2 supplemented with protease inhibitors (REF118361 45001, Roche) and benzonase (Merk Millipore)
