Each comparison sets two compounds side by side: what they are, how each is thought to work, regulatory status, the kind of evidence behind them and reported side effects. Comparisons describe differences; they do not say one compound is better. Every fact is taken from the compound pages and their cited sources (see how we source).
AOD-9604 vs MOTS-cAOD-9604 and MOTS-c are both research peptides discussed for metabolism and body fat, with different origins and mechanisms.
AOD-9604 vs TesamorelinAOD-9604 and tesamorelin are both linked to growth hormone and fat, but one is a hormone fragment and the other an approved GHRH analog.
BPC-157 vs GHK-CuBPC-157 and GHK-Cu are both studied for tissue repair, but they are different kinds of molecule with different evidence behind them.
BPC-157 vs KPVBPC-157 and KPV are both discussed for the gut, one as a repair peptide and one as an anti-inflammatory fragment of alpha-MSH.
BPC-157 vs NAD+BPC-157 and NAD+ are both popular in research-compound discussions, but one is a repair peptide and the other a coenzyme.
BPC-157 vs TB-500BPC-157 and TB-500 are both research peptides studied for tissue repair, often discussed together as the "Wolverine Stack."
Cagrilintide vs RetatrutideCagrilintide and retatrutide are both investigational weight-management compounds, acting on different hormone pathways.
Cagrilintide vs TirzepatideCagrilintide and tirzepatide are both studied for weight management, through the amylin pathway and the GLP-1 and GIP pathways respectively.
CJC-1295 (no DAC) vs CJC-1295 with DACCJC-1295 with and without DAC are the same GHRH analog, but the DAC linker changes how long it lasts in the body.
CJC-1295 (no DAC) vs IpamorelinCJC-1295 (No DAC) and ipamorelin are growth hormone secretagogues from different classes, almost always studied together.
CJC-1295 (no DAC) vs TesamorelinCJC-1295 and tesamorelin are both GHRH analogs, but only tesamorelin is an FDA-approved medicine.
Epithalon vs NAD+Epithalon and NAD+ are both discussed in longevity research, through telomerase and sirtuins respectively.
Epithalon vs PinealonEpithalon and pinealon are both short Russian-developed peptides, studied for aging and for neuroprotection respectively.
GHK-Cu vs KPVGHK-Cu and KPV are both tripeptides discussed for skin, one bound to copper and one cut from alpha-MSH.
GHK-Cu vs NAD+GHK-Cu and NAD+ both come up in anti-aging discussions, one as a copper peptide for skin and one as a cellular coenzyme.
Ipamorelin vs MK-677 (Ibutamoren)Ipamorelin and MK-677 both act on the ghrelin receptor to release growth hormone, but one is an injected peptide and the other an oral non-peptide.
Ipamorelin vs SermorelinIpamorelin and sermorelin both prompt the pituitary to release growth hormone, one through the ghrelin receptor and one through the GHRH receptor.
Ipamorelin vs TesamorelinIpamorelin and tesamorelin both raise the body's own growth hormone release, but through different receptors and with very different regulatory standing.
MOTS-c vs SS-31 (Elamipretide)MOTS-c and SS-31 are both mitochondrial peptides, one encoded by mitochondria and one designed to target them.
MOTS-c vs TesamorelinMOTS-c and tesamorelin are both discussed for metabolism and fat, but one is an early-stage research peptide and the other an approved medicine.
NAD+ vs MOTS-cNAD+ and MOTS-c are both discussed in longevity and metabolism research, one as a coenzyme and one as a mitochondrial-encoded peptide.
NAD+ vs NMN (Nicotinamide Mononucleotide)NMN is a precursor the body converts into NAD+, so the two are related, but they are not the same molecule.
PT-141 (bremelanotide) vs Melanotan IIPT-141 and Melanotan II are related melanocortin peptides, but only PT-141 (bremelanotide) is an FDA-approved medicine.
Retatrutide vs TesamorelinRetatrutide and tesamorelin are both discussed for fat reduction, but they belong to unrelated drug classes with different regulatory status.
Semaglutide vs CagrilintideSemaglutide and cagrilintide act on different hormone pathways and are studied together as the combination known as CagriSema.
Semaglutide vs RetatrutideSemaglutide is an FDA-approved single-receptor GLP-1 medicine; retatrutide is an investigational compound that targets three receptors.
Semaglutide vs TirzepatideSemaglutide and tirzepatide are both FDA-approved incretin medicines; the difference is how many hormone receptors each one activates.
Semax vs SelankSemax and selank are both Russian-developed peptides studied for cognitive effects, frequently discussed as a pair.
Sermorelin vs CJC-1295 (no DAC)Sermorelin and CJC-1295 (No DAC) are both GHRH analogs, differing mainly in approval history and half-life.
Sermorelin vs TesamorelinSermorelin and tesamorelin are both GHRH analogs, but only tesamorelin currently holds active FDA approval.
TB-500 vs KPVTB-500 and KPV are both research peptides discussed for repair and inflammation, built from very different parent molecules.
Thymosin alpha-1 vs KPVThymosin alpha-1 and KPV both sit in the immune category, one studied for immune cell function and one for calming inflammatory signaling.
Thymosin alpha-1 vs TB-500Thymosin alpha-1 and TB-500 share the thymosin name, but they are different peptides studied for different things.
Tirzepatide vs RetatrutideTirzepatide is an FDA-approved dual-receptor agonist; retatrutide is an investigational triple-receptor agonist still in clinical trials.