PubMed , American Journal of Physiology
For most healthy adults, glutathione supplementation at standard doses is generally considered safe for daily, ongoing use, with mild digestive discomfort being the most commonly reported side effect
& Michel, R
Are longevity peptides safe
A metabolite basis set was generated using MRSCloud(Hui et al., 2022), which included the following metabolites: ascorbate (Asc), aspartate (Asp), creatine (Cr), GABA, glycerophosphocholine (GPC), GSH, glutamine (Gln), Glu, myo-inositol (mI), lactate (Lac), N-acetyl aspartate (NAA), N-acetyl aspartyl glutamate (NAAG), phosphocholine (PCh), phosphorcreatine (PCr), phosphoryl ethanolamine (PE), scyllo-inositol (sI), and taurine (Tau)
Animal-model topical studies have used 0.050.2% (w/v) formulations