Free, with Matthew's video for each
The peptide library
Every peptide and stack Matthew covers on Peptide Insights: what it is, how researchers think it works, what has actually been studied and the side effects known so far. Plain words, honest about how strong the evidence is.
Recovery and repair
ARA-290 (cibinetide)Synthetic peptide, 11 amino acids, designed from erythropoietin
BPC-157Synthetic peptide, 15 amino acids
BPC-157 + TB-500Combination of two synthetic peptides
GLOW (BPC-157 + TB-500 + GHK-Cu)Combination of three peptides
KLOW (KPV + BPC-157 + TB-500 + GHK-Cu)Combination of four peptides
TB-500Synthetic peptide related to thymosin beta-4Growth hormone and muscle
CJC-1295 (no DAC) + IpamorelinStack of two synthetic peptides (29 and 5 amino acids)
CJC-1295 with DACSynthetic GHRH analog with an albumin-binding linker
GHRP-6Synthetic peptide, 6 amino acids
Human growth hormone (HGH)Protein hormone, 191 amino acids
IGF-1 DESShortened form of IGF-1, 67 amino acids
IGF-1 LR3Modified IGF-1, 83 amino acids (a small protein)
MK-677 (ibutamoren)Small molecule (not a peptide), growth hormone secretagogue
PEG-MGFSynthetic peptide based on an IGF-1 variant, with PEG attached
SermorelinSynthetic peptide, 29 amino acids
Sermorelin + IpamorelinStack of two synthetic peptides (29 and 5 amino acids)
TesamorelinSynthetic peptide, 44 amino acids (modified GHRH)
Tesamorelin + IpamorelinStack of two synthetic peptides (44 and 5 amino acids)Metabolism and weight
5-Amino-1MQSmall molecule (NNMT inhibitor), not a peptide
AOD-9604Synthetic peptide, 16 amino acids (modified growth hormone fragment)
CagrilintideInvestigational synthetic peptide (long-acting amylin analog)
MOTS-cMitochondrial-derived peptide, 16 amino acids
RetatrutideInvestigational synthetic peptide (triple hormone receptor agonist)
SemaglutideModified GLP-1 peptide, 31 amino acids
SLU-PP-332Small molecule (ERR agonist), not a peptide
TesofensineInvestigational small molecule (monoamine reuptake inhibitor), not a peptideBrain, mood and sleep
CerebrolysinMixture of small peptides and amino acids from pig brain
DihexaModified peptide-like molecule derived from angiotensin IV
DSIP (delta sleep-inducing peptide)Peptide, 9 amino acids
PE-22-28Synthetic peptide, 7 amino acids
SelankSynthetic peptide, 7 amino acids
SemaxSynthetic peptide, 7 amino acidsImmune and inflammation
Skin and pigment
Longevity and cell energy
Hormones, fertility and sexual health
HCG (human chorionic gonadotropin)Glycoprotein hormone, not a simple peptide
HMG (human menopausal gonadotropin)Mixture of glycoprotein hormones (FSH and LH activity), not a peptide
Kisspeptin-10Peptide, 10 amino acids
PT-141 (bremelanotide)Synthetic cyclic peptide, 7 amino acids
TestosteroneSteroid hormone (androgen), not a peptideNo match. Try another name, or see the mixing charts.
On Peptide Insights
All 75 peptides, ranked
Matthew's tier list puts the peptides side by side, from the best-researched to the ones with the least behind them. 29:47 long.
Free for readers
The reader kit, plus an email when a new profile goes up.
A lab math worksheet, a lab log and a COA checklist that go with the books, and the free calculator.
The library is the short version. Usage, Dosing, Cycling & More profiles 35+ peptides and 50+ stacks, one chapter each.
Everything in the library is for education and research only. It describes published research and Matthew's videos; it isn't medical advice and doesn't recommend using any compound. Several entries aren't peptides at all (MK-677 and 5-Amino-1MQ are small molecules, testosterone is a steroid hormone); they're here because Matthew covers them on the channel.