maplewood company glutathione USP Glutathione, 120 Capsules
Description
After washing three times with PBS, the liver tissues were homogenized by adding 0.1 M Tris-HCl buffer (pH 7.4) in a volume 10 times the tissue weight

Biochem Pharmacol 2000

Then the cells were centrifuged and washed once with 1 ml of 0.1 M borax (Sigma-Aldrich, 71997), followed by another wash with 1% BSA in PBS

A duck study used 300 to 1,500 mg/kg of L-theanine and reported 600 and 900 mg/kg as best supplementation levels to improve growth performance, immunity, intestinal morphology, and antioxidant status (Zhang et al., 2019b)
