Andrew Huberman· PhD
There are peptides like GHK-copper peptide which is produced endogenously in the liver more at younger ages. That's why the liver can regenerate fully, is this, the GHK-copper peptide helps. And if you're copper deficient, which not a whole lot of people are, but a lot of people that have had bariatric surgery are copper deficient, GHK-copper peptide can help significantly with your nervous system.