Peptide Comparisons

    In-depth side-by-side research comparisons across mechanism, structure and published data.

    Metabolic signalling

    5-Amino-1MQ vs MOTS-c: Research Comparison

    5-Amino-1MQ and MOTS-c are both studied in metabolism research, but they are different kinds of molecule. 5-Amino-1MQ is a small synthetic molecule that blocks the enzyme NNMT. MOTS-c is a 16-amino-acid peptide encoded in mitochondrial DNA, linked in cell and mouse studies to the energy-sensing enzyme AMPK.

    Growth hormone axis

    AOD-9604 vs Tesamorelin: Research Comparison

    AOD-9604 and tesamorelin are both linked to growth hormone, in different ways. AOD-9604 is a modified fragment of the growth hormone molecule itself. Tesamorelin is an analogue of GHRH, the hormone that signals the pituitary to release growth hormone.

    Incretin and amylin

    Cagrilintide vs Semaglutide: Research Comparison

    Cagrilintide and semaglutide act on different hormone receptors. Cagrilintide is a long-acting analogue of amylin, a hormone made by the pancreas. Semaglutide is a long-acting analogue of GLP-1, a hormone released by the gut. The two have been tested together in human trials under the name CagriSema.

    Growth hormone axis

    CJC-1295 vs Ipamorelin: Research Comparison

    CJC-1295 and ipamorelin both lead to growth hormone release from the pituitary, through different receptors. CJC-1295 is a GHRH analogue that acts on the GHRH receptor. Ipamorelin is a small synthetic peptide that acts on the ghrelin receptor.

    Growth hormone axis

    CJC-1295 vs Tesamorelin: Research Comparison

    CJC-1295 and tesamorelin are both synthetic analogues of GHRH, the hormone that signals the pituitary to release growth hormone. Tesamorelin is the full 44-amino-acid hormone with a fatty-acid group added. CJC-1295 is the first 29 amino acids with four substitutions, sold with or without a DAC linker.

    Growth hormone axis

    CJC-1295 With DAC vs Without DAC: Research Comparison

    Both are analogues of the first 29 amino acids of GHRH with four amino-acid substitutions. The difference is the drug affinity complex (DAC): a linker that bonds CJC-1295 with DAC to albumin in the blood, so it circulates for days. The version without DAC, also sold as Modified GRF 1-29, has no linker.

    Collagen and angiogenesis research

    GHK-Cu vs BPC-157: Research Comparison

    GHK-Cu and BPC-157 are different kinds of peptide. GHK-Cu is the copper complex of a three-amino-acid peptide found naturally in human blood plasma. BPC-157 is a synthetic 15-amino-acid peptide based on part of a human gastric protein.

    Growth hormone axis

    GHRP-2 vs GHRP-6: Research Comparison

    GHRP-2 and GHRP-6 are synthetic growth hormone releasing peptides from the same research programme, led by Cyril Bowers. Both act on the ghrelin receptor (GHS-R1a) and cause a short burst of growth hormone release.

    Growth hormone axis

    Hexarelin vs Ipamorelin: Research Comparison

    Hexarelin and ipamorelin are synthetic peptides that act on the ghrelin receptor and trigger growth hormone release. Hexarelin also binds CD36, a receptor on heart muscle and blood vessel cells. Ipamorelin was more selective for growth hormone in pig studies.

    Growth hormone axis

    Ipamorelin vs Sermorelin: Research Comparison

    Ipamorelin and sermorelin both lead to growth hormone release, through different receptors. Ipamorelin acts on the ghrelin receptor. Sermorelin is the first 29 amino acids of GHRH and acts on the GHRH receptor.

    Incretin / GLP-1

    Liraglutide vs Semaglutide: Research Comparison

    Liraglutide and semaglutide are synthetic GLP-1 analogues, both developed by Novo Nordisk. Both carry a fatty-acid chain that lets them bind albumin in the blood. Semaglutide came later and has a longer half-life than liraglutide.

    Metabolic Research

    Mazdutide vs Tirzepatide: Receptor Profile Comparison

    Mazdutide and tirzepatide are both long-acting dual receptor agonists, but they engage different receptor pairs. Mazdutide acts at the GLP-1 and glucagon receptors; tirzepatide acts at the GLP-1 and GIP receptors. This page compares the two at the level of receptor pharmacology and published clinical-programme status only. No superiority claim is made, and no outcome is compared between compounds.

    Mitochondrial

    MOTS-c vs NAD+: Research Comparison

    MOTS-c and NAD+ are both studied in mitochondrial and energy-metabolism research, but they are different kinds of molecule. MOTS-c is a 16-amino-acid peptide encoded in mitochondrial DNA. NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell.

    Mitochondrial

    MOTS-c vs SS-31: Research Comparison

    MOTS-c and SS-31 are both peptides studied in mitochondrial research, with different targets. MOTS-c is a 16-amino-acid peptide encoded in mitochondrial DNA, linked to the energy-sensing enzyme AMPK. SS-31 (elamipretide) is a synthetic four-amino-acid peptide that binds cardiolipin, a lipid in the inner mitochondrial membrane.

    Neuropeptides

    Selank vs Semax: Research Comparison

    Selank and Semax are synthetic seven-amino-acid peptides developed by Russian researchers, and both end in Pro-Gly-Pro. Selank is built from tuftsin, a short peptide involved in immune signalling. Semax is built from a short fragment of the hormone ACTH.

    Growth hormone axis

    Tesamorelin vs Ipamorelin: Research Comparison

    Tesamorelin and ipamorelin both lead to growth hormone release from the pituitary, through different receptors. Tesamorelin is a GHRH analogue that acts on the GHRH receptor. Ipamorelin is a five-amino-acid peptide that acts on the ghrelin receptor.

    Immune and angiogenesis research

    Thymosin Alpha-1 vs BPC-157: Research Comparison

    Thymosin alpha-1 and BPC-157 are unrelated peptides studied in different fields. Thymosin alpha-1 is a 28-amino-acid peptide first isolated from calf thymus, studied in immune signalling. BPC-157 is a synthetic 15-amino-acid peptide based on part of a gastric protein, studied mainly in rat models.