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Ear-related symptoms, however, such as ear dizziness and ear pain, did not reach statistical significance
A 2007 study in Chemical Research in Toxicology observed that the free GHK tripeptide quenched 4-hydroxy-trans-2-nonenal a cytotoxic lipid-peroxidation aldehyde via Michael addition at the histidine and lysine side chains, contributing one route to the broader antioxidant profile attributed to the compound (PMID 17672515)
The company can describe what the peptide is and what research suggests but cannot claim the product treats, cures, or prevents any disease
All three companies also make their nootropics in GMP-certified, FDA-registered facilities, but Thesis and Innerbody Labs are more transparent about third-party testing for ingredient and formula purity, with certificates of analysis from their third-party partner labs available on request
