ghk cu copper peptide hair serum GHK-Cu | Tonic for Fuller-Looking Hair enlarging hair thickness Copper Peptide Hair & Face

And so FDA is going to need to use a different lens. Unlike FDA approval of a new drug, which requires years of clinical trials demonstrating safety and effectiveness, placement on the 503A Bulks List answers a different regulatory question

The ideal concentration of GHK-Cu for skin benefits ranges from 0.05% to 0.5% , depending on your skin type and goals

References References Pickart, L., & Margolina, A

A: GHK-Cu uses a very small amount of copper, keeps it tightly bound in a peptide complex that inactivates its harmful freeradical chemistry, and operates within the bodys normal copperhandling pathways, so when used as directed it is not expected to meaningfully raise systemic copper levels in people with normal copper metabolism