glutathione energetix NOW 500 mg Glutathione is found throughout the entire body Professional Formulas L-Glutathione

Direct and simultaneous determination of reduced and oxidized glutathione and homoglutathione by liquid chromatography-electrospray/mass spectrometry in plant tissue extracts

This is a fairly typical filler, not overly thick or thin and often the lowest cost option

Low total GSH and high homocysteine levels are considered as novel risk markers for acute stroke severity, and low total and reduced GSH levels may be potential risk markers for stroke severity and insufficient functional independence in large-artery atherosclerosis (157, 158)

Ma et al, 2020

Zaid and Greenman: Zaid D & Greenman Y (2019) Human immunodeficiency virus infection and the endocrine system