glutathione cycle The redox cycle, demonstrating the inter-conversion of does glutathione increase dopamine levels

This creates a theoretical concern that copper peptides might accelerate tumor development in individuals with active cancer or dormant tumors

Your body produces GHK-Cu on its own, but levels drop sharply with age

This is a secondary effect of overall matrix improvement, not a direct pore-targeting action

If supplementing copper through GHK-CU, ensure dietary zinc is adequate

The longer you use GHK-Cu, the more pronounced the anti-aging effects will become, with fine lines and wrinkles continuing to diminish

Reviewed by Brandon Johnson Certified Personal Trainer, Nutrition Coach & Peptide Research Consultant Brandon Johnson is a certified personal trainer, nutrition coach, and peptide research consultant with a background in kinesiology and over 15 years of experience in fitness and wellness