ghk-cu copper peptide hair growth Serum with Copper Tripeptide-1 – Dual Peptide Scalp Treatment plus Licorice Root Extract : Beauty & Personal Care gently massage in circular motions Copper Peptide Hair Growth Serum

These are one of, if not the most rigorously studied class of peptides ever, with many large, placebo-controlled, randomized trials that followed over the past twenty years from the original GLP-1 drugs such as exenatide, approved by the FDA in 2005

The two can potentially be combined for complementary effects -- carnosine for damage prevention and epitalon for telomere maintenance

Note: Long-term safety and side-effect profiles have not been established in formal clinical research

The variability is considerable, and there is currently no reliable way to predict which category you will fall into before starting treatment