DOCUMENTED · TESTED · TRACEABLE
Research peptides, documented batch by batch.
Independent-lab Certificates of Analysis, published by lot number.
Research use only | Not for human or veterinary use | 21+
- Third-party COAs by lot · Accumark Labs
- US-stocked · ships from our US warehouse
- Mix any 4 vials · save 12%
- Research-use attestation on every order
SHIPS FROM OUR US WAREHOUSE
In stock. Documented to the lot.
Mix and match any 4 vials — up to 12% off.
CERTIFICATES OF ANALYSIS
Read the COA before you buy.
Independent laboratory results, published by lot number — a lot-specific document you can check, never a generic certificate.
View the COA library →- Lots with published COAs
- 5
- Lots with published COAs
- Third-party testing lab
- Accumark Labs
- Third-party testing lab
- Stocked & shipped
- USA
- Stocked & shipped
QUALITY CONTROL
Every result, on the record.
The analyses below appear on our published Certificates of Analysis. Each COA itemizes exactly what was run on that lot — no result is claimed that isn’t on the document.
Purity · HPLC-DAD
Reverse-phase liquid chromatography with diode-array detection separates the peptide from related impurities; purity is reported as percent peak area.
REPORTED ON ALL 5 PUBLISHED LOTS · 98.2–99.9%
Endotoxin · LAL
Limulus amebocyte lysate assay quantifying bacterial endotoxin in the sample.
REPORTED ON G3-R LOT 1032
Sterility · PCR
PCR-based screen for microbial contamination of the sample.
REPORTED ON G3-R LOT 1032
Look up any published lot by number.
Open the COA library →WHY VELLE
Built for labs. Backed by documentation.
The standards behind every order, in plain terms.
Third-party lot testing
Published lots are analysed by an independent laboratory (Accumark Labs), with results issued per lot.
COAs published by lot
Look up the certificate behind a lot number before you order — never a generic document.
US-stocked
Inventory held and shipped from our US fulfillment warehouse.
Secure checkout
Encrypted checkout; card details go straight to the payment processor and are never stored by Velle.
A real person replies
Inquiries answered by our team within one business day, Monday–Friday, Pacific Time.
Research-use controls
Every order carries a research-use attestation. Mix any 4 vials for 12% off.
Frequently asked questions
Ordering, documentation, shipping, and account verification.
RESEARCH ACCOUNTS
Ready to order?
Documented materials, catalogue-format naming, and lot-level traceability — supplied to qualified research customers from US stock, usually within days, not weeks.
For laboratory research use only. Not for human or veterinary use. Not intended for consumption, diagnosis, treatment, cure, mitigation, or prevention of disease.