Peptides for Skin & Hair
Peptides researchers have studied for collagen, glow, hair growth, tanning.
Skin and hair splits into two very different things. GHK-Cu, the copper peptide, has small controlled human trials of creams showing firmer skin and shallower wrinkles, which is why it appears in real skincare products; the injected version has no human trials and stings badly. The tanning peptides, melanotan 1 and 2, are the compounds on this site with the most concrete documented harm: new and changing moles, and melanoma reported after use, with formal warnings from regulators in several countries.
If you want one rule for this category: the cheapest option, a GHK-Cu cream, is also the one with the evidence. The pages below cover each compound, and the tanning page is worth reading in full before anyone considers it.
The peptides studied for skin & hair
GHK-Cu
Skin, hair, anti-agingYour skin made tons of this when you were young. By 60, you have almost none. Research shows it restarts collagen production and DNA repair.
Melanotan 1
Skin protection, tanningTells your skin to produce more melanin. FDA-approved with real clinical safety data.
Melanotan 2
Tanning, multiple benefitsDoes several things: tanning, appetite reduction, and libido. Less targeted but more versatile than MT-1.
Glow Blend
Skin, recovery, anti-agingEverything in Wolverine plus a copper peptide that rebuilds collagen and activates repair genes. The full package.