Quality & testing
Receipts on
every single vial.
Every peptide in the Velour Research catalog is manufactured, lyophilized, and third-party analyzed by qualified manufacturing partners, a US-based research manufacturing facility with a fully instrumented QC lab. Released lots are intended to include a signed certificate of analysis.
Manufacturing partner
Made with
qualified manufacturing partners.
qualified manufacturing partners operates a quality-controlled US facility dedicated to research-grade peptide synthesis. Their chemists handle solid phase synthesis, cleavage, RP-HPLC purification, lyophilization, and final QC under a single roof - which means every lot we ship has a fully documented chain of custody.
Velour Research operates as their premium research-use storefront. We do not rebrand, we do not source from aggregators, and we do not mix suppliers. Any single-peptide SKU or research stack is manufactured under one roof with one bill of materials and one signature on the COA.
The test panel
Six assays, every lot.
01 · assay
Reversed-phase HPLC
Gradient C18 chromatography on every lot. Purity reported as percent peak area at 214 nm.
02 · assay
ESI mass spectrometry
Electrospray ionization confirms molecular mass within 1 Da of theoretical for sequence identity.
03 · assay
Karl Fischer titration
Residual water content measured per lot - typical results under 6%, reported on every COA.
04 · assay
LAL endotoxin assay
Limulus amebocyte lysate testing on applicable SKUs. Results reported in EU/mg with hard limits.
05 · assay
Peptide content (N)
Nitrogen analysis determines actual peptide content separately from salt and water fractions.
06 · assay
Acetate counterion
Ion chromatography quantifies the trifluoroacetate/acetate salt fraction, reported per lot.
Cold chain
From −20°C freezer
to your bench.
Peptide orders ship with phase-change gel packs in insulated mailers. Temperature-sensitive SKUs get overnight carriage. Tracking is active from the moment the carrier scans the label out of the qualified manufacturing partners fulfillment center.
- Bulk storage
- −20°C, desiccated, amber glass
- Fulfillment temp
- 2–8°C cold packs, overnight
- Discretion
- Plain outer carton, no product names
- Tracking
- Live tracking from lab to doorstep
- Chain of custody
- Lot number printed on every carton
Start with a COA
Browse the COA library.
Every lot we have ever shipped is searchable and downloadable - by product, by lot number, or by date.