Mechanism Explainers
CJC-1295 is one of the more frequently referenced peptides in growth-hormone research, and also one of the more commonly misunderstood — largely because several closely related versions circulate under similar names. This overview clarifies what CJC-1295 is, how the variants differ, and what the research literature actually examines,
Mechanism Explainers
BPC-157 and TB-500 are two of the most frequently studied peptides in tissue-repair and recovery research, and they're often mentioned in the same breath. If you're trying to understand how they differ as research compounds — and why researchers so often study them side
Quality & Testing
The research peptide market has been reshaped in the last two years. Long-standing suppliers have shut down or been forced offline, and buyers who trusted a single source for years suddenly find themselves starting over. If you're re-evaluating where to source research materials in 2026, this
Mechanism Explainers
Few molecules are as fundamental to biology — or as central to modern longevity research — as NAD+. Unlike the synthetic peptides often discussed in research circles, NAD+ is a coenzyme found in every living cell, essential to how cells produce energy. This overview covers what NAD+ is, where the science came
Quality & Testing
A peptide that tested at 99% purity on its Certificate of Analysis can still degrade in your own fridge if it's stored wrong. Storage is chemistry, not guesswork — and the rules are simple once you understand why peptides break down. This guide covers how to keep lyophilized and
Quality & Testing
A Certificate of Analysis is the single most useful document for judging a research peptide — and one of the most misread. A COA is where a vague brand claim like "99% pure" either gets backed by data or falls apart. This guide explains, in plain terms, what each
Mechanism Explainers
Most peptides discussed in research circles are either hormones, hormone fragments, or synthetic analogs of them. MOTS-c is something different — a peptide encoded not in the cell's main genome but inside the mitochondria, the organelles that produce a cell's energy. That unusual origin is what
Mechanism Explainers
Semax and Selank are almost always mentioned in the same breath — two synthetic peptides from the same Russian research program, both stabilized the same way, both studied for the nervous system. That shared origin is exactly why they get confused. But they are different molecules, built from different natural precursors,
Mechanism Explainers
Selank is the sister compound to Semax — developed by the same Russian research group, built on the same design principle, but derived from an entirely different natural molecule and studied for a different set of questions. This overview covers what Selank is, where it came from, what the published literature
Mechanism Explainers
Semax is one of the most-studied synthetic peptides to come out of Russian neuropeptide research, yet it remains largely unknown in the West. This overview covers what Semax is, where it came from, what the published literature has actually examined, and how researchers evaluate the quality of a reference
Myth vs. Evidence
TL;DR: "99% pure" and "research-grade" are common phrases in the peptide space, and they're often read as a stamp of safety. But purity and safety are different questions. A certificate of analysis (COA) tells you what a compound is and how much
Study Breakdowns
TL;DR: In 2023, The New England Journal of Medicine published a Phase 2 randomized controlled trial of retatrutide, an investigational triple-receptor agonist, in adults with obesity. Rather than just report the result, this article uses that paper as a worked example of how to read a clinical study