Hayes The COA was not buried or hard to find
A scientific review of four small-scale studies confirmed that glutathione use does result in some skin lightening.24 Additionally, glutathione has also been shown to decrease psoriasis when levels are bolstered by intake of whey protein, which contains glutamylcysteine, a precursor to GSH.25 Most impressively, perhaps the same studies mentioned above also show that glutathione doesn't just lighten, but it improves skin elasticity and decreases wrinkles' appearance
Although glutathione is very safe, it may interact with medications or not be a good fit for certain individuals
The results from human, animal, and cell-based experiments support catalpols efficacy as a treatment for arthritis, confirming its therapeutic potential (Table 6
Science 258:597603, PMID: 1329206 Rcasens M, Mayat E, Vignes M (1992) The multiple excitatory amino acid receptor subtypes and their putative interactions
These demonstrated short-term safety in adults with normal renal and hepatic function