Can peptides affect hearing or cause tinnitus?

There's no established link between common peptides and hearing changes. If you develop sudden hearing loss or tinnitus while using peptides, see an audiologist to rule out other causes (infection, ototoxicity from other medications). <a href='https://www.nidcd.nih.gov/health/tinnitus' target='_blank'>NIDCD Tinnitus Information</a>