Start here
There are 24 articles on this site and no obvious front door. This is the order to read them in if you are new — roughly 2h 20m of reading, in five stages, each one assuming the one before it.
Nothing here is a protocol and nothing here is advice. It is a sequence: define the terms, then the arithmetic everything else depends on, then how to judge a claim, and only then the individual compounds. Read it straight through or skip to the stage that matches what you already know.
Progress is saved in this browser only — no account, nothing sent anywhere.
What a peptide actually is
Start with the vocabulary. These three articles define the word, separate it from the two terms it gets confused with, and explain the general mechanism — signalling, receptors, short half-lives. Nothing here is compound-specific. After this stage you can read any peptide discussion and know what the nouns mean, which is the single biggest thing standing between a newcomer and the rest of the library.
- 01
- 02Peptides vs. proteins vs. amino acids
The three words get used interchangeably. They are not interchangeable.
4 min read - 03How peptides work in the body
The general mechanism — receptors, breakdown, why delivery is hard.
5 min read
The measurement layer
Most of the confusion in this space is not biology, it is arithmetic. A vial arrives as a dry powder, water goes in, and every number after that depends on choices made in the first five minutes. These six articles cover which water, how much, what the syringe scale is really measuring, the mg-to-mL conversion, how long a reconstituted vial holds, and what cloudiness means. After this stage the numbers people throw around in forums stop being mysterious — you can check them.
- 04Bacteriostatic water vs. sterile water: what's the difference?
One word changes whether a vial is single-use or holds for weeks.
4 min read - 05How much bacteriostatic water do I add to a peptide vial?
The most-asked question, and the answer is not a number — it is concentration.
4 min read - 06What does 'units' mean on an insulin syringe?
Units are volume marks, not doses. Misreading this is the classic tenfold error.
4 min read - 07How do I convert mg to mL on a syringe?
The three-step conversion that ties concentration to what the syringe can measure.
5 min read - 08How long do reconstituted peptides last in the fridge?
What the community-reported storage windows are, and why reported is not established.
5 min read - 09Why is my peptide cloudy after reconstitution?
Foam, haze and particles mean different things. One of them is a stop sign.
5 min read
How to read the evidence
This is the stage that changes how you read everything after it. First the practical framework — legal status, what a certificate of analysis does and does not tell you, how to actually read a paper. Then the baseline case that the unglamorous fundamentals do more work than any compound. Then a worked example: exercise recovery is the most common reason people arrive here, and it is the clearest demonstration of a large gap between animal data and human evidence. After this stage you will notice when a claim has quietly jumped from "studied in rats" to "works".
- 10A beginner's guide to peptide research
Legal status, sourcing, certificates of analysis, and how to read a paper.
6 min read - 11Why metabolic health is the foundation of everything
The honest baseline: if the substrate is broken, nothing layered on top translates.
7 min read - 12Peptides and exercise recovery: what science shows
A worked example of an evidence gap, in the use case people ask about most.
6 min read
Recovery and growth-hormone compounds
Now the compounds, starting with the recovery lane because it is where the loudest claims and the thinnest human data sit closest together. Read the two repair compounds individually, then the growth-hormone pair, then the stack that combines all three — in that order, because the stack article only makes sense once you know what each part is carrying. After this stage you can read the profile pages for these compounds and understand exactly what their evidence tier is describing.
- 13BPC-157: what the research says about tissue repair
The most-studied compound in the lane — and almost entirely in animals.
6 min read - 14TB-500 (Thymosin Beta-4) and wound healing
Its counterpart, and a case study in trial data belonging to a different molecule.
6 min read - 15CJC-1295 & Ipamorelin: the GH peptide stack
The growth-hormone pair, and why the two are studied together.
7 min read - 16The "Wolverine Stack": BPC-157, TB-500 & CJC-1295
What happens when you combine all three — and why combining does not add evidence.
6 min read
Metabolic, longevity and hormone compounds
The longest stage, and deliberately last. It opens with the GLP-1 class because it is the one area on this site with large approved-drug trial data — it sets the bar for what strong evidence looks like. Everything after it is measured against that bar: a thin-evidence fat-loss compound, the wider metabolic picture, then the longevity lane, then the synthesis article on repair mechanisms. It closes on hormones, because "is a peptide even the right tool here" is the right question to leave with.
- 17GLP-1 peptides: semaglutide, Ozempic & the research
The best-evidenced class on the site. Read it to calibrate what strong data looks like.
8 min read - 18AOD-9604: the fat-burning peptide, fact-checked
The same goal, a fraction of the evidence — the contrast is the lesson.
6 min read - 19Peptides and metabolism: what the studies show
What metabolism actually means, past the wellness-industry usage of the word.
7 min read - 20NAD+ and NMN: the science of cellular energy and aging
The entry point to the longevity lane, and its most hype-prone corner.
8 min read - 21Epithalon: the telomere research peptide
The telomere hypothesis, and a human literature that has barely been replicated.
6 min read - 22Senolytics vs. peptides: two approaches to aging research
Two different bets on aging, side by side.
7 min read - 23How peptides may support cellular repair and regeneration
The synthesis — how the repair mechanisms from earlier stages fit together.
7 min read - 24TRT vs. peptide therapy: what's the difference
The closing question: when is a peptide not the right tool at all?
7 min read
After the path
Once you have been through it, the full article index is grouped by category rather than by sequence, the field guide is the fastest way to check where a compound's evidence actually sits, and the calculator handles the arithmetic from stage two. If something here is wrong, the corrections policy is real — send it through.