Gastrointestinal upset is reported occasionally
A common approach uses 0.25mg in the morning and 0.25mg in the evening, maintaining more consistent tissue levels throughout the day
Start with real food, solid protein, and the basics that actually move the needle
Your provider will help you decide what makes sense based on how you feel and what you want to support
Human Studies Human data remain limited, and most studies are small, single-center, or use copper peptide formulations combined with other ingredients (which makes it hard to isolate GHK-Cu's specific contribution): A 2016 Lee et al
Includes genes for BDNF itself (positive feedback), Bcl-2 (anti-apoptotic protein), and various synaptic proteins