Research Peptide Comparison
Ipamorelin and PT-141 (Bremelanotide) are both synthetic peptides with well-documented receptor targets, yet their biological axes and research applications are entirely distinct. Ipamorelin is a selective GHS-R1a agonist that stimulates pulsatile growth hormone secretion. PT-141, a cyclic heptapeptide analogue of α-MSH, acts primarily as a melanocortin receptor agonist with notable activity at MC3R and MC4R.
Ipamorelin is a pentapeptide growth hormone-releasing peptide (GHRP) and selective agonist of the ghrelin (GHS-R1a) receptor. It is widely cited for its capacity to stimulate pituitary GH release without the cortisol, prolactin or aldosterone elevations associated with earlier GHRPs, making it a clean reference ligand in somatotropic and receptor-selectivity research.
Compared to PT-141 10mg, Ipamorelin 5mg is priced at £19.99 with 99%+ verified purity. Its CAS registry number is 170851-70-4. It has a molecular weight of 711.85 g/mol.
Ipamorelin 5mg is available in 5mg, 10mg and ships with a full Certificate of Analysis from Janoshik Analytical. It is priced £3.00 higher than PT-141 10mg.
PT-141 (Bremelanotide) is a cyclic heptapeptide melanocortin-receptor agonist with primary activity at the MC3R and MC4R subtypes, exerting its effects through central nervous system signalling rather than peripheral vascular pathways. This mechanism has placed it at the centre of research into central arousal circuits, sexual health pharmacology and melanocortin-system pharmacology more broadly.
Compared to Ipamorelin 5mg, PT-141 10mg is priced at £16.99 with 99%+ verified purity. Its CAS registry number is 189691-06-3. It has a molecular weight of 1025.18 g/mol.
PT-141 10mg is available in single size and ships with a full Certificate of Analysis from Janoshik Analytical. At £3.00 less than Ipamorelin 5mg, it is the more affordable option in this comparison.
All products sold by Neovia Peptides are strictly for in-vitro research and laboratory use only. Not intended for human or veterinary use, food additives, drugs, or cosmetics. By purchasing from this website, you agree that you understand and accept these terms.
