For research use only. Our products are not intended for human or animal diagnosis, treatment or prevention, and are not for ingestion.
Free US shipping over $150 · Weekday orders placed before 15:00 EST ship the same day · Third-party reports with every batch
About Vireo Peptides
We do not manufacture packaging that merely looks professional. We produce analytical data that a third party can reproduce.
Our Story
It started with a rejected batch
In 2019, our founder was still buying for a contract research organization. A bulk peptide order was retested in the lab and came back nearly four percentage points below the purity stated on the seller's report — the report was old, the batch was new.
After that return, we decided to do it ourselves: every batch carries its own number, every report maps to a specific test date and instrument trace, and customers can check the number themselves.
Vireo Peptides was founded on that basis. We put our budget into third-party testing, batch management and packaging stability rather than oversized marketing claims.
2019Founded
2019Founded
8Research peptides in stock
40+Third-party tested batches
24hWeekday technical response
How We Work
Three rules we do not bend
If we cannot meet any one of them, the batch does not go on sale.
1️⃣Data before sales
No new product goes live until both HPLC and LC-MS are complete. We do not take pre-orders before the report exists, and historical reports stay on file permanently.
2️⃣No mixed batches
Samples from different batches are numbered and stored separately, and each order is bound to its batch number at dispatch. We never mix old and new batches or reuse a report.
3️⃣Only to compliant users
We supply research institutions and individuals with suitable laboratory facilities only. Any inquiry involving human use is declined, with an explanation.
Quality Control
Four checkpoints every batch must pass
- Incoming inspection: vial intact, stopper secure, label information complete.
- Third-party submission: an independent laboratory performs HPLC purity integration and LC-MS molecular weight confirmation.
- Data comparison: measured values are compared against the theoretical sequence and molecular weight; any deviation beyond tolerance fails the batch.
- Batch COA issued: a uniquely barcoded report is generated and bound to the vial batch number before stocking.
Who We Serve
Who we serve
🎓 Universities and research institutes
Small, ready-to-ship quantities for molecular biology, pharmacology and cell biology groups, with pack sizes that fit project budgets.
🧾 Contract research organizations (CROs)
Batch-to-batch consistency plus complete COA records for method validation and audit trails.
🔍 Independent researchers and early-stage teams
Low minimum order sizes, technical advice and help confirming dissolution and storage protocols, so early experiments cost less to iterate.
Reports First
Want to see our reports first?
No order required. The COA page publishes HPLC purity and LC-MS results for every batch on sale, so you can verify the data before you decide.
