This depends on the severity of symptoms, B12 levels, and overall health
85 In a randomized controlled trial, 80 people between ages 35 and 55 years with self-assessed sleep problems took 1 gram of a branded form of magnesium-L-threonate called Magtein, providing 72 mg of elemental magnesium, or a placebo daily for 21 days
Generic and locally produced glutathione brands are less costly than imported and premium brands with a better reputation
Moreover, other routes of administration, such as intravenous, intranasal, and sublingual administration, can increase GSH levels [99]
Appl Microbiol Biotechnol 51:407421
Glutathione and Skin Brightening In skincare circles, glutathione has earned a reputation for its skin-brightening properties