When injected directly into the bloodstream, reduced glutathione bypasses the digestive system, resulting in faster and more noticeable results
No human bioavailability data exist for oral, sublingual, or transdermal routes, so claims that one route works better in people are unsupported
Vafadar A, Shabaninejad Z, Movahedpour A, Fallahi F, Taghavipour M, Ghasemi Y, Akbari M, Shafiee A, Hajighadimi S, Moradizarmehri S, Razi E (2020) Quercetin and cancer: new insights into its therapeutic effects on ovarian cancer cells
Journal of Investigative Dermatology, 2000
Some committee members said that they worried about the implications of the FDA allowing itself to skip over clinical trials when permitting pharmacies to dispense medications
That is a combination that is rarely, if ever, seen (likely incompatible with life)