When the blood samples of those people taking glutathione supplements were observed, abnormal thyroid levels were found with low levels of TSH and increased FT3 levels that indicated hyperthyroidism
After this point, both peptide degradation and bacterial contamination risk increase beyond acceptable thresholds, even with bacteriostatic water as the diluent
Every other Perfect B peptide is injected before bed
An early clinical study in chronic insomnia patients showed increased delta-wave power on overnight EEG recordings after DSIP administration (Schneider-Helmert & Schoenenberger, Eur Neurol, 1983
10.1016/j.jhazmat.2018.02.031 J
However, when the researchers adjusted for other things , including siblings with autism, the increased risk was no longer statistically significant .[ref][ref] (Note that other researchers point out bias in that paper.[ref]) Another large study published in 2021 involving 73,000 children and mothers found that there was a 19% increase in relative risk of ASD with prenatal acetaminophen exposure.[ref] A 2025 meta-analysis of studies on acetaminophen use during pregnancy and infancy shows that the majority of studies and the higher-quality studies show a positive association between acetaminophen use and ADHD, ASD, or neurodevelopmental disorders.[ref] A couple of things to consider here