Know what you're paying.
Know what you're getting.
PeptidePub compares peptide prices across every major research lab and shows you which vendors actually pass independent third-party testing — so you never overpay or get burned.
Compare real prices
See normalized price-per-milligram across every major lab, side by side. No more copying numbers into a spreadsheet.
Check the testing
Every vendor is graded on independent third-party lab results (Janoshik, MZ Biolabs, Colmaric) and verifiable COAs — not marketing claims.
Get price-drop alerts
Tell us the peptide and your target price. We email you the moment a trusted vendor drops below it.
What buyers are checking right now
The most-researched peptides, ranked by demand.
Retatrutide
Reta, GLP-3, triple agonist
Tirzepatide
Tirz
Semaglutide
Sema
BPC-157
Body Protection Compound
TB-500
Thymosin Beta-4 fragment
Cagrilintide
Cagri
GHK-Cu
Copper Peptide
Ipamorelin
Browse by goal
Weight loss, recovery, longevity — find what you're researching.
Weight Loss / GLP-1 & Metabolic
Semaglutide, tirzepatide, retatrutide & more
Healing & Recovery
BPC-157, TB-500 and recovery stacks
Anti-Aging / Longevity
GHK-Cu, NAD+, epithalon
Growth Hormone
Ipamorelin, CJC-1295, tesamorelin
Cognitive / Nootropic
Semax, selank
Cosmetic
Melanotan II and cosmetic research peptides
Blends
GLOW, KLOW, Wolverine and other composition-matched blends
Supplies / Reconstitution
BAC water and reconstitution supplies by unit price
We rank vendors on lab results, not vibes
Anyone can call themselves “pharmaceutical grade.” We only rank vendors on evidence you can verify yourself: independent third-party test results and batch-specific certificates of analysis from labs the research community trusts.
- Independent HPLC purity & potency testing
- Verifiable, batch-specific certificates of analysis (COAs)
- Labs the community trusts: Janoshik, MZ Biolabs, Colmaric
- Track record and documented incidents
Sample vendor scorecard
Independent tests
59 tests · 99.1% avg purity
COA verifiable
Batch-specific · Janoshik
Track record
2+ years, no major incidents
Illustrative example — live vendor scorecards publish at launch.
Real answers from real researchers
A searchable forum where questions get answered once and stay findable — reconstitution, dosing math, vendor experiences, and lab results. No endless chat scroll. Free to join.
Join the waitlist →How do I reconstitute 20mg retatrutide?
💬 14 answers
Which labs still test to Janoshik standard?
💬 8 answers
BPC-157 + TB-500 stack — dosing math?
💬 23 answers
Example threads — forum launches soon.
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The Peptide Handbook
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Four books and 40 compounds, written by the platform that tests vendors for a living. Every claim graded by the real evidence, every dose explained, and the honest call when a compound isn't worth your money. Comes with the goal map, glossary, dosing tables, tracker, and cycle calendars that make it stick.
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