glutathione is an example of what kind of peptide Proteins Structure of the tripeptide glutathione
Description
Cunningham E
PMID: 33127998

And while you might experience some discomfort at the time, this will probably subside after just a few seconds

Lipopolysaccharide (LPS), a bacterial endotoxin, is known to induce apoptosis (28) in a large number of spermatozoa