ghk-cu peptide hair growth benefits for Growth: Before and After Results and Dosage Copper Peptide Hair Growth Serum

And what about systemic effects from oral use

Bacteriostatic Water 10ML for Peptide Reconstitution Bacteriostatic Water 10ML is a sterile, non-pyrogenic solution widely used for peptide reconstitution and laboratory research applications

The most common side effects are extremely mild and infrequent, primarily involving occasional skin irritation, mild redness, or transient tingling sensation in a small percentage of users, typically resolving without intervention and not requiring discontinuation

If degradation has reduced your effective dose by 30 or 40 percent, you are no longer on the protocol you think you are on