glutathione for smokers Activity of S-transferase and its π isoenzyme in the context of single nucleotide polymorphism in the GSTP1 gene (rs1695) and tobacco smoke exposure in the patients with acute pancreatitis and healthy Schematic representation of smoking induced
Description
The reason comes down to limited safety data, since peptides like

Results: Treatment with NTZ lessened the serum liver enzymes, reduced malondialdehyde (lipid peroxidation product), enhanced antioxidant capacity, attenuated proinflammatory cytokines, and suppressed apoptosis

Kasper S, Bancher C, Eckert A, Frstl H, Frlich L, Hort J, et al
Together they create one of the most advanced recovery peptide combinations available through medically supervised peptide therapy in San Ramon CA and the Tri-Valley