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This is because overuse can lead to digestive issues, affecting absorption and causing oxidative stress

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Third-party tested COA available per batch Ships within 48 hours discreet packaging Free shipping over 150 About GHK-Cu GHK-Cu is a naturally occurring copper tripeptide that is being researched for its potential to support collagen and elastin, promote healthier tissue repair, and help protect the skin against oxidative and environmental stress

49, 50, 51, 52, 53 Additionally, intestinal permeability has been associated with mental illness including schizophrenia and depression