Our Theorys.
Your Results.
US-manufactured synthetic research peptides, HPLC-verified to ≥99% purity with a batch-specific certificate of analysis on every lot. Synthesized, tested, and shipped entirely within the United States.
For laboratory research use only.
Our Standard
The research peptide industry has a transparency problem.
Theorys exists because researchers deserve a supply chain they can verify — documented purity and provenance, not marketing claims.
Most Suppliers
- “Trust us, it’s pure.”
- No third-party testing
- No batch-level documentation
- Unknown synthesis origin
Theorys
- Here’s the COA — verify it yourself.
- Independent HPLC + LC-MS, every lot
- Batch-specific certificate per vial
- Fully US domestic supply chain
Why Theorys
Built for researchers who verify.
Independent third-party testing
HPLC for purity, LC-MS for identity — every lot, published to the product page.
Batch-level certificates of analysis
Every vial carries a unique lot ID linking to its COA. Full traceability from label to lab.
≥99% purity standard
Lyophilized under controlled conditions with proper cold-chain handling from synthesis to bench.
Fast, fully tracked shipping
Insulated, tracked, signature-on-delivery, dispatched from our US facility.
100% domestic supply chain
Synthesized, tested, stored, and shipped entirely within the United States.
Curated research catalog
Melanocortin peptides, GH secretagogues, BPC-157, TB-500, neuropeptides, and more.
FAQ
Questions, answered.
Is Theorys US-domestic?
Yes. All compounds are synthesized, tested, and shipped within the United States.
How is purity verified?
Independent HPLC for purity and LC-MS for identity, on every lot, with the COA published to the product page.
What documentation comes with my order?
A batch-specific certificate of analysis matched to your vial’s lot ID.
How fast do orders ship?
Orders placed before cutoff dispatch same or next business day, fully tracked.
Are these products for human use?
No. All products are sold strictly for laboratory research use only and are not for human or animal consumption.
Your research deserves verified inputs.
Browse the full Theorys catalog — every lot documented, every COA published.
Browse catalog → For laboratory research use only.