Peptides forMolecular Biology
Research-Grade Peptides for Laboratory ResearchFor laboratory research use only; not for human consumption.
Featured compounds
9 compounds pulled from the research catalog. Each one is batch tested, with a certificate on file.
Full catalog
Why Choose Nucleus
Third-Party Tested
Full-panel testing for purity, sterility, endotoxins, and heavy metals on every batch.
cGMP Facilities
Produced in FDA-audited, cGMP-certified facilities to the highest global standards.
Research Use Only
Clearly labeled for laboratory purposes with full documentation included.
Same-Day Dispatch
Orders before cutoff leave the facility the same business day, tracked end to end.
Order to bench
From catalog to your lab
One short path from selection to delivery. Every order is handled for laboratory research use only.
Any time
Select a compound
Each listing shows the compound, dose, format and tested purity, with its certificate on file.
Before 2 PM EST
Confirm research use
Checkout includes the research-use attestation. Orders confirmed before 2 PM EST dispatch the same business day.
Tracked to arrival
Cold-chain delivery
Shipped in tamper-evident, temperature-controlled packaging with tracking from dispatch to the lab door.
Frequently Asked
Q.01What are Nucleus products intended for?+
All products are supplied strictly for laboratory and research use only. They are not intended for human or veterinary consumption and are not intended to diagnose, treat, cure, or prevent any disease or condition.
Q.02How is product purity verified?+
Every batch is tested by an independent third-party laboratory using analytical methods including HPLC. A Certificate of Analysis is kept on file for every batch.
Q.03Where are your products sourced?+
Our compounds are produced in a cGMP-certified facility with consistent batch documentation and quality control standards appropriate for laboratory research applications.
Q.04Who is eligible to order?+
Orders may be placed only by qualified professionals purchasing research materials for legitimate laboratory or scientific research purposes. All customers must be 21 years of age or older and complete the registration and acknowledgment process at checkout.
Q.05How are products shipped?+
Orders are typically processed within 1-2 business days and ship via FedEx, UPS, or USPS. Shipments to PO Box addresses are prohibited. Full details are available on the Shipping Policy page.