Research & Guides
Every compound independently verified. Every batch tested. Shipped from Santa Cruz, CA.
Latest Research
Browse our full range of research-grade peptides. All compounds are supplied lyophilized with a certificate of analysis.
Storing and Handling Research Peptides in the Laboratory
Storing and Handling Research Peptides in the Laboratory
GLP-1 Research Peptides Compared: Semaglutide, Tirzepatide, Retatrutide
A framework for understanding single, dual, and triple incretin agonists and why the number of receptor targets matters in GLP-1 research.
Selank: A Research Overview of the Tuftsin-Derived Peptide
An educational overview of Selank, the tuftsin-derived heptapeptide studied in neuropeptide and neuroimmune research.
Understanding Peptide Purity: HPLC and Mass Spectrometry Explained
How HPLC and mass spectrometry confirm the purity and identity of research peptides, and how to read a certificate of analysis.
Sermorelin: A Research Overview of the GHRH Peptide
An educational overview of Sermorelin, the GHRH-fragment peptide studied as a growth hormone secretagogue in endocrinology research.
Sermorelin vs Ipamorelin vs CJC-1295: GHRH and Ghrelin Receptor Routes Compared
Two of these three act on the GHRH receptor and one on the ghrelin receptor. A research comparison of sermorelin, ipamorelin and CJC-1295 by receptor route.
BPC-157 vs TB-500: Comparing Two Repair-Focused Research Peptides
BPC-157 and TB-500 are the two most frequently requested compounds in tissue-repair research, and they are routinely mentioned in the same breath. That pairing obscures an important point:...
GLOW vs KLOW Blend: Comparing Three- and Four-Peptide Preparations
GLOW and KLOW are the two blend names that come up most often in tissue-repair research discussion. The names are similar, the compositions overlap heavily, and the difference...
KLOW Blend: A Research Overview of the Four-Peptide Preparation
KLOW is a combined research preparation that brings together four separately characterized peptides — KPV, GHK-Cu, TB-500 and BPC-157 — in a single lyophilized vial — 50mg GHK-Cu,...
MOTS-C Research Guide: The Mitochondrial Peptide Explained
An educational overview of MOTS-C, the mitochondrial-derived signaling peptide, its link to the AMPK energy pathway, and why it is studied in metabolism research.
Retatrutide Research Guide: What It Is and Why It Matters
An educational overview of Retatrutide, the investigational triple-receptor incretin peptide, and how researchers study its multi-target signaling.
TB-500 (Thymosin Beta-4): A Research Overview
An educational overview of TB-500 (Thymosin Beta-4), the actin-binding peptide studied in cell-migration and tissue-repair research.
GHK-Cu (Copper Peptide): A Research Overview
An educational overview of GHK-Cu, the copper-binding tripeptide studied in skin-biology, collagen, and gene-expression research.
Mitochondrial-Derived Peptides: An Emerging Class of Cellular Signals
An overview of the mitochondrial-derived peptide (MDP) family — humanin, MOTS-C, and the SHLPs — and the retrograde signaling that makes them a frontier in cell biology.
Why Third-Party COAs Matter for Research Peptides
Why third-party certificates of analysis (COAs), HPLC, and mass spectrometry matter for reproducible research-peptide work.
What Is BPC-157? A Research Overview
An educational overview of BPC-157, the stable pentadecapeptide studied in tissue-repair and gastrointestinal research models.
Retatrutide vs. Tirzepatide vs. Semaglutide: A Research Comparison
A mechanistic comparison of Semaglutide, Tirzepatide, and Retatrutide by the number of incretin receptors each peptide engages.
All products sold by Santa Cruz Peptides are intended for laboratory and research purposes only. They are not intended for human or veterinary use, diagnosis, or treatment. By purchasing from this site you confirm that you are a qualified researcher and agree to use these products in compliance with all applicable laws and regulations. These statements have not been evaluated by the FDA.