72
Peptide profiles
75
Compounds compared
169
Verified discount codes
100%
Independent research
4,335
Prices compared
Certificates lab-checked in the last 7 days, as of November 6, 2026: Formal Peptides, Exactide, 20 Aminos and 12 more.
Prof. Peptide provides peptide research for educational purposes only. Nothing on this site constitutes medical advice or endorses human use of research peptides.
Everything a researcher needs
From peptide mechanisms to reconstitution math — Prof. Peptide covers it all, clearly and credibly.
Peptide Library
Comprehensive profiles on 72 research peptides — mechanisms, half-lives, stacking protocols, and more.
Browse library →Bioregulator Guide
A research guide to the Khavinson short-peptide bioregulators — the gene-regulation hypothesis, synthetic analogs vs. organ extracts, and the individual compounds.
Read the guide →Comparisons
Side-by-side breakdowns of popular peptides and supplements — mechanisms, evidence, dosing, and how to choose between them.
Compare compounds →Featured Vendors
The vetted alphabetical list of research peptide suppliers — with third-party testing, published COAs, and the quality criteria Prof. Peptide uses to include them.
See vetted vendors →Prices
Compare research-peptide prices across 169 vendors — normalized to $/mg by vial size, post-code, and sorted lowest-first.
Compare prices →Coupon Codes
Verified discount codes for research-grade suppliers. Updated regularly.
See codes →Peptide Reconstitution & Dosage Calculator
Accurately reconstitute and dose any peptide with our step-by-step research calculator.
Open calculator →Get the App
The all-in-one peptide tracker for iPhone — log doses, see estimated levels, run protocols, and search 70+ peptides by name or brand.
Download →News
The latest peptide research news, regulatory updates, and developments.
View news →Latest News
View all newsNovember 6, 2026
Retatrutide for Sleep Apnea: Two Phase 3 Trials in the NEJM Report Lower Apnea-Hypopnea Index Scores
The New England Journal of Medicine published TRIUMPH-1-OSA (243 adults without type 2 diabetes) and TRIUMPH-2-OSA (448 with it) on October 21, 2026. At 80 weeks the apnea-hypopnea index changed by up to -34.3 and -25.4 events per hour with retatrutide versus about -10 with placebo. The results on both estimands, and how they sit beside tirzepatide's approved sleep apnea indication; no trial has compared the two.
Read more →November 6, 2026
Orthopaedic Journal JAAOS Reviews BPC-157, Thymosin Beta-4 and TB-500: No Controlled Orthopaedic Evidence
A narrative review in the Journal of the American Academy of Orthopaedic Surgeons (October 27, 2026) found one small uncontrolled human case series for BPC-157 in musculoskeletal use, no controlled orthopaedic evidence for any of the three compounds, and no validated equivalence between TB-500 and full-length thymosin beta-4. It concludes that routine clinical use cannot currently be recommended.
Read more →October 31, 2026
HHS Will Not Act Against 503A Pharmacies Compounding Six Peptides: What the Policy Requires
HHS published a draft, interim policy on October 30, 2026 (91 FR 68526): it does not intend to take enforcement action against State-licensed pharmacies, Federal facilities or licensed physicians compounding BPC-157, Epitalon, KPV, MOTS-c, Semax or TB-500 under ten conditions, from registered manufacturers, against a patient-specific prescription, in set dosage forms only. It is not FDA approval, does not list the six on the 503A Bulks List and does nothing for research-use-only sellers. Comments are open for two weeks.
Read more →Built for researchers
Most peptide sites exist to sell products. Prof. Peptide exists to educate. We're independent, ad-light, and committed to presenting research accurately — including limitations and unknowns.
- ✓Content is editorially independent and research-driven
- ✓Every peptide profile cites primary research literature
- ✓Calculator math is transparent and peer-reviewable
- ✓Discount codes are manually verified before publishing
Now on iOS
The all-in-one peptide tracker
Log doses, see estimated levels, calculate reconstitution, and search 70+ peptides by name or brand — all in one private iOS app.
Get the AppDon't overpay for peptides.
Prof. Peptide finds the best deals and delivers them to your inbox.