ghk-cu structure Molecular crystal of the tripeptide GHK-Cu. In solution, GHK-Cu Copper Peptides: 50 Years
Description
Even under ideal conditions, oral supplements typically have an absorption rate of only 50% or less

This is significant because 90% of the bodys serotonin is produced in the gut

Effective formulations typically contain 0.1% to 2% active copper peptides, with 0.5% being a popular starting point for most users

So, it's best to follow our process below: Don't shake the can