The Peptide Handbook
Everything you need in one place: dosage calculators, tutorials, a searchable peptide database, new research digests, and hard-won cautions about the peptide industry — free.

What's inside
Dosage Calculators
Reconstitution, syringe-unit, and concentration calculators that do the math for you — with step-by-step examples.
Video & Written Tutorials
Beginner-to-advanced guides: handling, storage, sterile technique, and how to read lab reports.
Peptide Database
A searchable, continuously updated reference of peptides with research summaries and study links.
New Research Digest
Plain-English breakdowns of the latest published studies, added as they come out.
Industry Cautions
Red flags, common scams, purity testing pitfalls, and how to spot marketing hype vs. data.
Sourcing Intelligence
China-sourced vs. US-compounded products — what actually differs in purity, testing, and regulation.
Preview the handbook
A taste of what you unlock after email verification.
Industry cautions you should know
Most peptide buyers learn these the hard way. You don't have to.
- ⚠ 90%+ of 'research chemical' vendors never third-party test the batches they sell.
- ⚠ '99% purity' claims without a verifiable COA from an independent lab are meaningless.
- ⚠ Chinese bulk peptides vary batch-to-batch; US compounding pharmacies are legally required to meet USP standards.
- ⚠ Beware of vendors marketing dosages or human-use instructions — a major regulatory red flag.

China-sourced vs. US products
The single biggest sourcing decision — explained plainly. Full deep-dive in the handbook.
| Factor | China-sourced | US-compounded |
|---|---|---|
| Price | Lowest cost per mg | 2–5x higher |
| Purity testing | Often self-reported COA | Independent + USP-compliant |
| Regulation | Sold 'for research only' | PCAB / state board oversight |
| Batch consistency | Variable | Audited |
| Best for | Cost-driven research | Quality-critical work |
FAQ
Is the handbook really free?
Yes. Enter your email, verify it, and you get the PDF plus full online access. We make money by recommending vetted suppliers and services — clearly labeled, never paywalled info.
How do I get access after signing up?
Click the verification link we email you. Access unlocks instantly — no waiting, no manual approval.
Is this medical advice?
No. Everything is for educational and research purposes only. Peptides discussed are not approved by the FDA for over-the-counter human use. Always consult a licensed physician.
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PDF download plus full online access. Verify your email and you're in.