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The fastest approach is bismuth subsalicylate (Pepto-Bismol), which chemically binds hydrogen sulfide gas and can stop the rotten-egg odor within 30-60 minutes one study found it reduced fecal hydrogen sulfide release by more than 95%
Effect of Glutathione Infusion on Leg Arterial Circulation, Cutaneous Microcirculation, and Pain-Free Walking Distance in Patients With Peripheral Obstructive Arterial Disease: A Randomized, Double-Blind, Placebo-Controlled Trial Glutathione and its anti-aging and antimelanocitic effects Glutathione for skin lightening: a regnant myth or evidence-based verity
J Biochem Mol Toxicol 13:(34)119126