Skin & hair
4 peptides in this category.
Beginner-friendly
GHK-Cu
Copper Peptide · Glycyl-L-Histidyl-L-Lysine Copper
The copper-binding tripeptide your skin loses with age. Strongest evidence is topical for skin and wound healing; injectable use is mostly anecdotal.
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Melanotan-2
MT-2
The unregulated tanning peptide. Cheaper and more effective on libido than MT-1, but the side effect profile and mole-change risk make this the riskier of the two.
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Melanotan-1
MT-1 · Afamelanotide
An α-MSH analogue approved in the EU and US as Scenesse (afamelanotide) for erythropoietic protoporphyria. The off-label tanning use is what most people actually want it for.
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SNAP-8
Acetyl Glutamyl Octapeptide-3
A topical octapeptide marketed as a 'Botox alternative'. The mechanism is real; the magnitude is nothing like an injection.
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