glutathione and ghk-cu Intermediate Cu(II)-Thiolate Species in the Reduction of Cu(II)GHK by Glutathione: A Handy Chelate for Biological Cu(II) Reduction GHK-Cu Peptides Before and After:
Description
Of these 1909 people, 648 met the requirement of at least 2 follow-up visits with more than 3 years between them

You can find other peptides on the market, but buying it is one thing and handling it is another

The lack of strong independent replication is a significant gap
A healthy immune system is particularly important during the winter months when people are more likely to spend time indoors in close quarters with others, increasing the risk of illness
