Research Peptide Comparison
BPC-157 is a 15-amino-acid synthetic peptide of gastric origin investigated in numerous preclinical models for its cytoprotective, angiogenic, and musculoskeletal repair properties, with reported interactions spanning the nitric oxide system, EGR-1 transcription factor pathways, and growth hormone receptor signalling. PT-141, or Bremelanotide, is a cyclic heptapeptide analogue of α-MSH (alpha-melanocyte-stimulating hormone) that acts as a non-selective agonist at melanocortin receptors MC1R, MC3R, and MC4R, with preclinical and clinical research focusing particularly on MC4R-mediated central nervous system pathways. The two compounds represent fundamentally divergent research trajectories — BPC-157 centred on peripheral connective tissue and vascular biology, PT-141 on central melanocortinergic signalling networks.
BPC-157 (Body Protection Compound) is a synthetic pentadecapeptide derived from a protective protein found in human gastric juice. Investigated for its role in upregulating angiogenic pathways, modulating nitric oxide signalling and influencing growth-factor expression at sites of tissue injury, the sequence is widely cited across musculoskeletal, gastrointestinal and gut-brain axis studies.
Compared to PT-141 10mg, BPC-157 5mg is priced at £14.49 with 99%+ verified purity. Its CAS registry number is 137525-51-0. It has a molecular weight of 1419.53 g/mol.
BPC-157 5mg is available in 5mg, 10mg and ships with a full Certificate of Analysis from Janoshik Analytical. At £2.50 less than PT-141 10mg, it is the more affordable option in this comparison.
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 BPC-157 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. It is priced £2.50 higher than BPC-157 5mg.
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