melatonin vs glutathione Using Exogenous Melatonin, Glutathione, Proline, and Glycine Betaine Treatments to Combat Abiotic Stresses in Crops Egyptian Journal of Chemistry
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Oral KPV is effective, especially for gut inflammation
This therapy is being studied for conditions ranging from joint injuries to gut inflammation, showing early promise in multiple domains

It can also inhibit Ang I- and Ang II-induced contractions in rat aortic rings via a NO-dependent mechanism (Poh et al., 2013)
However, I mention them because nearly all modern studies do also, suggesting they are still of clinical relevance
