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It restores normal blood vessel diameter and optic disc appearance, and maintains retinal thickness, thus preventing further ischemic damage

Use these checks to identify a reliable GHK-Cu product: Color check: Authentic GHK-Cu powder is blue to blue-purple from the copper(II) ion in the GHK coordination geometry

2025 Feb;41(2):150-152

Research on peptide capsules generally shows that tetrapeptides like epitalon fare poorly when taken orally without specialized delivery systems designed to protect against gastric breakdown

The combination can be used alongside other research peptides to study possible synergies