Third-party tested · lot-matched COAs
Reference-grade research peptides, verified lot by lot.
pepU supplies laboratories and independent researchers with lyophilized peptide reference material at 99%+ purity. Every vial ships with the analytical report behind it.
- Average lot purity
- 99.4%
- Reference compounds
- 26
- Lots with a COA
- 100%
- Dispatch window
- <24h
Average lot purity
Reference compounds
Lots with a COA
Dispatch window
99%+ purity
Every lot assayed by RP-HPLC before release
Third-party tested
Independent mass-spec confirmation on file
US-based fulfilment
Dispatched from our Nevada facility
Cold-chain packing
Insulated mailers with gel packs at no cost
Most requested
Featured reference compounds
Catalog
Shop by research area
Metabolic Research
Incretin and metabolic-pathway reference compounds.
Repair & Recovery
Tissue and signalling pathway research compounds.
Cognitive Research
Nootropic and neuropeptide reference standards.
Cosmetic Research
Dermal and pigmentation pathway compounds.
Research Blends
Pre-combined dual-compound vials.
Lab Supplies
Diluents, filters and handling consumables.
Quality control
How every pepU lot is verified
- 01
Independent assay
Every incoming lot is sampled and sent to an accredited third-party analytical lab before any vial is allocated to inventory.
- 02
HPLC & mass spec
Purity is quantified by reverse-phase HPLC and identity confirmed by ESI mass spectrometry against the expected molecular weight.
- 03
Lot-matched release
The certificate is filed against the lot number printed on your vial, so your assay data always traces back to a specific report.
Every pepU lot is released at 99% purity or higher as measured by reverse-phase HPLC. The exact figure for the lot you receive is printed on the vial label and recorded on the matching certificate of analysis.
Compliance notice
Every product on this site is sold strictly for laboratory research use.
pepU products are not drugs, foods, cosmetics, or dietary supplements. They are not approved by the FDA for any use and must never be administered to humans or animals. Purchasers confirm they are qualified researchers and accept responsibility for lawful handling and disposal.
Read the research-use policy