Dichlorvos in concentrations ranging from 0.1 to 100 mg/litre had little or no toxicity, as measured by the oxygen depletion caused by microorganisms degrading organic matter in sewage (Lieberman & Alexander, 1981, 1983)
According to animal studies, the HED for ASX is 835 mg/kg, while in these clinical studies lower ASX doses have been used
As for the other essential trace elements, dietary Se needs to reach effective concentrations in the central nervous system (CNS) to exert its functions
B., Strbe, S., Oreskovic, L
It mimics the brains natural signal
Studies comparing routes consistently show IV glutathione produces five to ten times higher peak plasma concentrations than oral dosing (PubMed PMID: 24791752)