Which should you choose? Here's what you need to know.
GHK-Cu rebuilds skin structure through collagen and elastin stimulation. Melanotan-1 darkens skin through melanin production. Skin quality vs. skin color.
GHK-Cu is a copper peptide studied for skin rejuvenation — stimulating collagen production, improving firmness, and accelerating wound healing. It addresses aging at the structural level.
Choose GHK-Cu if:
Your goal is anti-aging skin improvement — firmer skin, fewer wrinkles, better healing.
Melanotan-1 (afamelanotide/Scenesse) is an FDA-approved melanocortin agonist that stimulates natural melanin production. It's more selective than Melanotan-2 with fewer off-target effects.
Choose Melanotan 1 if:
You want to darken your skin or need UV protection through increased melanin production.
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options.
Our top-rated vendor for each, based on trust scores, purity testing, and price.
We re-check vendor prices continuously and score vendors on Finnrick blind-test results — samples bought anonymously and sent to a lab, not vendor claims. No vendor can pay to rank higher. See our full methodology.