Research Library

Peptide Research Blog

Mechanism-focused overviews grounded in peer-reviewed literature. Each article traces the pharmacological evidence behind the compounds we carry.

Tissue Repair

BPC-157: Mechanisms of Tissue Repair and Regeneration

BPC-157 (Body Protection Compound-157) is a synthetic pentadecapeptide derived from a protective protein found in gastric juice. Decades of preclinical research point to a broad regenerative profile spanning tendon, ligament, muscle, gut, and neural tissue.

BPC-157angiogenesistissue repair
9 min readMar 1, 2025
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Metabolic Research

Tirzepatide vs Semaglutide: Comparative Analysis of Incretin Receptor Pharmacology

Tirzepatide's dual agonism at GLP-1 and GIP receptors gives it a mechanistically distinct profile from semaglutide's selective GLP-1 activity. Here we compare receptor pharmacology, published trial outcomes, and the synergistic mechanisms of the twincretin class.

tirzepatidesemaglutideGLP-1
11 min readMar 10, 2025
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Regeneration

GHK-Cu: Copper Peptide Research on Collagen Synthesis and Tissue Remodeling

GHK-Cu is a naturally occurring tripeptide-copper complex with remarkable research activity: it stimulates collagen and glycosaminoglycan synthesis, modulates TGF-β signaling, suppresses NF-κB inflammatory cascades, and regulates gene expression in aging tissue.

GHK-Cucopper peptidecollagen synthesis
8 min readMar 18, 2025
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Endocrine Research

Ipamorelin and CJC-1295: Growth Hormone Secretagogue Pharmacology

Ipamorelin and CJC-1295 (No DAC) represent two complementary classes of growth hormone secretagogues — a ghrelin receptor agonist and a GHRH analog — that act on distinct receptor populations to produce synergistic, pulsatile GH release.

ipamorelinCJC-1295GHRP
9 min readMar 25, 2025
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Longevity Research

Epithalon: Telomerase Activation and Longevity Research

Epithalon (Ala-Glu-Asp-Gly) is a synthetic tetrapeptide best known for its ability to activate telomerase and extend telomere length in somatic cells — a finding with significant implications for cellular aging research.

epithalonepitalontelomerase
8 min readApr 1, 2025
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Tissue Repair

TB-500 and Thymosin Beta-4: Actin Sequestration and Tissue Healing Mechanisms

TB-500 is a synthetic peptide fragment corresponding to the active region of Thymosin Beta-4 (Tβ4), a ubiquitous protein with a central role in actin dynamics, cell migration, and tissue repair.

TB-500thymosin beta-4actin
8 min readMar 12, 2025
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Metabolic Research

Retatrutide: Triple Incretin Receptor Agonism and the Next Frontier of Metabolic Research

Retatrutide (LY3437943) is a single molecule that simultaneously agonizes GLP-1, GIP, and glucagon receptors. Phase 2 data published in 2023 showed mean weight reductions exceeding 24% at 48 weeks, surpassing tirzepatide benchmarks and establishing triagonism as a distinct pharmacological class.

retatrutidetriagonistGLP-1
10 min readApr 1, 2025
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Regeneration

Glow Blend: The Research Behind GHK-Cu and TB-500 for Skin and Tissue Regeneration

The Glow Blend pairs GHK-Cu and TB-500 in a combination that addresses tissue repair and skin regeneration through complementary, non-redundant mechanisms — collagen induction and gene-level remodeling from GHK-Cu, cell migration and angiogenesis from TB-500.

GHK-CuTB-500thymosin beta-4
8 min readApr 1, 2025
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