Full peptide directory
All 8 peptides in this guide—A–Z crawlable index with summaries and label names.
AOD-9604
Fat metabolism
hGH fragment 176-191 analog · Anti-obesity drug fragment
A fragment of human growth hormone studied for fat loss without IGF-1 effects.
DSIP
Sleep
Emideltide
A neuropeptide isolated in 1977 and studied for sleep architecture and stress response.
Kisspeptin
Hormone signaling
KP-54 · Metastin
A hypothalamic peptide that triggers reproductive hormone release—studied in fertility research and sometimes sold as a research chemical.
Melanotan II
Melanocortin
MT-II · Melanotan 2 · Afamelanotide analog
A synthetic melanocortin peptide originally developed for tanning—now notorious for unregulated online sale.
Oxytocin
Neuropeptide
Love hormone · Pitocin
A nine-amino-acid neuropeptide famous for social bonding—also studied as a nasal spray for autism and anxiety.
PT-141
Melanocortin
Bremelanotide · Vyleesi · Melanotan II derivative
A melanocortin receptor agonist approved as Vyleesi for hypoactive sexual desire in women.
hCG
Hormonal
Human chorionic gonadotropin · Pregnyl · Gonadotropin
A glycoprotein hormone peptide—not a small peptide—used medically for fertility and sometimes TRT adjunct.
hGH Fragment 176-191
Fat metabolism
AOD precursor
The lipolytic piece of growth hormone—marketed for fat loss in research markets.