Curated peptide vendor codes, with proof.
Every code on this site is tested at checkout by a named editor, screenshotted, and re-checked when readers report it. Every statistic you see is real, tracked activity — never invented.
Published verification methodology
Named editors with LinkedIn profiles
COA transparency scored in every review
17 vendors tracked54 live offerslast code check Aug 26, 2026
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Coverage queue
Missing a compound or vendor? Tell us what to cover next.
Our publication is based on a queue, and not whims. It depends on how much people demanded, whether the vendor is offering something worthwhile to investigate, and if there is any published work that can be summed up or not. Request anything, from a compendium guide to a vendor comparison.
- Compounds with new published research
- Vendors with live codes we can test at checkout
- Comparisons readers keep asking us to settle
Why researchers use this site
Codes tested by hand
A named editor applies every code at the vendor's real checkout and captures a dated screenshot before it goes live.
Real numbers only
Use counts, success rates, and usage charts come from live tracking on this site. If we don't have the data yet, we show nothing — not a made-up figure.
COA transparency scored
Every review rates whether a vendor publishes third-party Certificates of Analysis — the single biggest quality signal in this industry.
Accountable editors
Each page names the editor who verifies it, linked to their author page and LinkedIn profile.
Frequently asked questions
How do you verify a coupon code?
An editor tests it at the vendor's checkout, screenshots the applied discount, and dates the verification. Reader votes and reports then keep it honest — full methodology here.
Are your statistics real?
Yes. Total uses, today's uses, success rates, and usage charts are computed from anonymised interaction events logged on this site. Sections stay hidden until enough real data exists.
Do commissions affect your ratings?
No. We may earn a commission through links on this site, but scoring criteria are published and applied identically to every vendor, whether or not an affiliate relationship exists.
Is anything here medical advice?
No. Every compound discussed is for laboratory research only. This site is for readers 21 and over and never describes human use.
A code stopped working — what do I do?
Hit "Report dead code" on the coupon. Our team is notified immediately and re-tests it.
Can I ask you to cover a compound or vendor?
Yes — use the coverage request form. Requests are weighted by how often they are asked for and whether we can verify the vendor's codes ourselves, and we email you when the guide goes live.
Affiliate disclosure: we may earn a commission when you buy through links on this page, at no extra cost to you. Commissions never influence our ratings — see how we verify.
21+ · Research use only: all compounds referenced on this site are intended strictly for laboratory research and are not for human consumption. Nothing here is medical advice.