Your body already has a sophisticated system for neutralizing and removing toxins, and glutathione is the primary engine of that system
These receptors are involved in pigmentation and other biological effects
A side effect should never be judged only by whether it appears on a list
AICAR is the other non-peptide small molecule in this batch and raises the same point from a different direction, being a nucleoside whose characterisation requirements are equally unlike a peptide's
Hellman L, Nakada F, Zumoff B, Fukushima D, Bradlow HL, Gallagher TF
doi.org/10.3390/ijms19071987 Hureau, C., et al