Glutathione nasal spray may interact with certain medications, such as chemotherapy drugs and immunosuppressants
They told me they wanted to patent this discovery. Their speed was in part prompted by the need to file a patent before a discovery is made public by publication and therefore open to be reproduced by others

This positive signal is further corroborated by another recent umbrella review, which highlighted that Coenzyme Q10 consistently demonstrates beneficial effects on cardiac function and clinical outcomes across meta-analyses ( 3.3 Emerging data in heart failure with preserved ejection fraction and endothelial function A 2022 phase II, double-blind, randomized trial in patients with preserved ejection fraction (HFpEF) reported that ubiquinol (600 mg/day), alone or combined with D-ribose, modestly enhanced LVEF and alleviated symptom burden, though exercise capacity improvements were inconsistent ( 3.4 Statin-associated myopathy Although there is mechanistic plausibility for Coenzyme Q10 in alleviating SAMS, a 2021 meta-analysis identified no significant improvements in myalgia or creatine kinase levels relative to placebo (Wei et al., 2022)

If you're working to improve low glutathione levels through diet, supplements, or lifestyle changes, retesting every 3-6 months helps track your progress