BIOLOGICAL LABORATORIES Peptides · Research Reagents
Research Reagent Catalog · Lot-Verified

Synthesized for the bench.
Verified for the record.

Biological Laboratories supplies HPLC-verified research peptides with a Certificate of Analysis on every lot — for qualified researchers who need paperwork, not promises.

≥99% purity, per lot 0 reagents on file −20°C cold-chain shipping
HPLC + MS Third-party purity verification, every lot
COA-0N-FILE Certificate of Analysis issued per batch
−20°C Lyophilized, shipped on cold-chain
21+ / QR Qualified researcher certification required
Compound Finder
Catalog assistant · not medical advice
Catalog — 0 reagents on file

Search the current lot list

Every reagent below ships lyophilized with a lot-specific Certificate of Analysis. New to research peptides? Filter by category to find compounds by what they’re studied for. Pricing is shown per size as an estimated one-month supply, for reference only.

Quality & documentation

Every lot ships with paperwork, not promises.

Each batch is tested by an independent third-party lab before it reaches your bench. Retention samples are kept on file, and a lot-specific Certificate of Analysis is available on request — before or after purchase.

  • 01HPLC and mass spectrometry confirm identity and purity for every synthesized lot.
  • 02Independent third-party labs perform verification — results are not self-reported.
  • 03Retention samples are archived so any lot can be re-tested if a question is raised.
  • 04COAs are matched to the lot number printed on your vial, not a generic template.
Certificate of Analysis Verified
Lot No.BL-4102-RETA-0619
ReagentRetatrutide
Test MethodHPLC / ESI-MS
Purity Result99.4%
AppearanceWhite lyophilized powder
Test FacilityIndependent third-party
StatusPass
Support

Real support after you order, not just a COA in your inbox.

Every order includes access to our research-support line, staffed by a licensed healthcare professional on our team. They can walk you through a compound’s published research literature, proper reconstitution, storage and handling, and help you make sense of your Certificate of Analysis.

This is general research-context information, not personalized medical advice. Our products are for in-vitro research use only — anything involving human or veterinary use should go through your own licensed physician.

Message Research Support
Research Support Available
Staffed ByLicensed Healthcare Professional
CoversLiterature, handling, storage, COAs
Not IncludedPersonal medical or dosing advice
Response TimeWithin 1 business day
Included WithEvery order
About

Built for people who read the COA before the label.

Biological Laboratories synthesizes and distributes research peptides for laboratories, institutions, and qualified individual researchers. We work from a small, fixed catalog rather than a sprawling one — every reagent we carry is one we can stand behind with lot-level documentation.

All material is sold strictly for in-vitro laboratory research. Nothing on this site should be read as a medical claim, and nothing we sell is intended for human or animal consumption.

  • SynthesisSolid-phase, batch-tracked
  • TestingIndependent third-party HPLC/MS
  • StorageLyophilized, −20°C recommended
  • ShippingCold-chain, discreet packaging
  • DocumentationCOA issued per lot
Contact

Request access

Tell us which reagent you're researching and we'll follow up with current lot availability, COA, and institutional pricing.

Emailorders@biologicallaboratories.com
Response timeWithin 1 business day

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For In Vitro Use Only — Not for Human Use. Laboratory research use only. Not for veterinary use, diagnosis, treatment, or consumption.