Peptides vs Proteins: What Is the Difference?
Understanding the key differences between peptides and proteins — size, structure, synthesis methods, stability, and why the distinction matters for research.
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Peptide Bond Chemistry: Formation, Structure, and Significance
An accessible guide to peptide bond chemistry — covering formation, planar geometry, resonance, Ramachandran plots, cleavage mechanisms, and relevance to synthetic peptide research.
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How to Read a Certificate of Analysis (COA) for Peptides
A practical guide to reading and evaluating Certificates of Analysis for research peptides — covering HPLC purity, mass spectrometry, endotoxin testing, and red flags to watch for.
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How Long Do Peptides Last in the Fridge?
Lyophilized (freeze-dried) peptides last 12-24 months refrigerated at 2-8°C. Once reconstituted, most peptides remain stable for 14-30 days in the fridge.
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Is BPC-157 Legal?
BPC-157 is legal to purchase for research purposes in the United States. It is not FDA-approved for human use and is sold as a research chemical.
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Best Peptides for Sexual Health: What the Research Shows
What Does the Research Say About Peptides and Sexual Health? Sexual health research has been transformed by peptides that target the neurological and hormonal pathways governing arousal, desire, and reproductive function. While PDE5 inhibitors like sildenafil address the vascular component, peptide research focuses on the central nervous system and neuroendocrine mechanisms that initiate and regulate…
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What Does BPC-157 Do?
BPC-157 is a synthetic peptide derived from human gastric juice that has demonstrated tissue-healing and cytoprotective properties across hundreds of preclinical studies.
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Cardioprotective Peptides: From Hexarelin to SS-31 — Protecting the Heart in Research
A deep-dive into five peptides investigated for cardiac protection in preclinical research: Hexarelin (GHS-R1a and CD36 dual receptor action), SS-31 (cardiolipin stabilization), BPC-157 (NO-mediated vascular protection), Cardiogen (cardiac gene regulation), and VIP (coronary vasodilation).
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The Complete Beginner’s Guide to Peptide Research in 2026
Everything a new researcher needs to know about peptides in 2026 — what they are, how they differ from drugs and proteins, how to source and handle them, the regulatory landscape, and a practical checklist for getting started.
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Best Peptides for Gut Health: What the Research Shows
What Does the Research Say About Peptides and Gut Health? The gut has become one of the most active frontiers in biomedical research. The gastrointestinal tract is not just a digestive organ — it is the body’s largest immune organ, a critical barrier against pathogens, and a signaling hub that communicates with the brain, immune…