Peptide Sciences Alternative · 2026
Searching for a Peptide Sciences Alternative?
Peptide Sciences voluntarily shut down on March 6, 2026, with no advance notice — leaving thousands of researchers without a source overnight. If you're looking for a supplier you can actually trust, here's what matters now, and why researchers are moving to Northbridge.
What happened to Peptide Sciences
For over a decade, Peptide Sciences was the largest research-peptide supplier in the United States. On March 6, 2026, the company posted a brief notice that it had voluntarily ceased operations and discontinued all product sales. There was no warning and no guidance for pending orders.
A note of caution: any website still using their branding should be treated carefully.
What to look for in a replacement
A supplier disappearing overnight is a reminder to choose your next one on proof, not promises. Before you buy from anyone, verify:
Independent third-party testing
Purity confirmed by an outside lab (HPLC + mass spectrometry) — not self-reported.
A public Certificate of Analysis
A COA you can actually view before you buy, not on request only.
Verified 99%+ purity
Stated purity that's backed by documentation you can check.
American-made & U.S.-shipped
No customs delays, no parcels lost overseas, no long waits.
A real guarantee
A clear remedy if independent testing doesn't confirm purity.
Responsive, human support
Real people who answer questions before and after your order.
Why researchers are choosing Northbridge
We built Northbridge around exactly the things that matter when trust is on the line:
- Independent third-party purity testing on every batch (HPLC + MS)
- A public, downloadable COA for every compound
- 99%+ purity — verified, not just claimed
- American-made, shipped from the U.S.
- Same-day shipping on orders before 2 PM EST — tracked and discreet
- Purity Guarantee — full refund plus a free replacement if testing doesn't confirm purity
Frequently asked questions
Did Peptide Sciences shut down?
Yes — Peptide Sciences voluntarily ceased operations on March 6, 2026, and is no longer accepting orders.
What's a good Peptide Sciences alternative?
Northbridge Research Labs offers independently third-party-tested research compounds with a public COA on every product, 99%+ purity, American-made sourcing, fast tracked shipping, and a Purity Guarantee.
Are Northbridge products tested?
Every batch is tested by an independent third-party lab using HPLC and mass spectrometry, and the COA is published on the product page.
Where do you ship from?
All orders ship from within the United States, same day when placed before 2 PM EST.
All products are sold for laboratory and research use only. Not for human consumption. Northbridge Research Labs does not make therapeutic claims or provide guidance on human or veterinary use.