Fresh. Frozen. Third-party tested.

Why Excalibur is different.

Made in fresh batches. Kept frozen at −10 °F until the day it ships. Tested by an independent lab you can check yourself.

Fresh batches

Made fresh. Then frozen.

Every product is made in fresh batches, then frozen.

Kept frozen

−10 °F. Until the day it ships.

Peptides are sensitive to heat and time. So ours are kept frozen at −10 °F (about −23 °C) until the day they ship.

Third-party COAs

Third-party COAs. Verify them yourself.

Every product is tested by an independent lab, and each report can be verified outside our site.

  • 18 products · Freedom Diagnostics Testing — Lab lookup

Every product is third-party tested. Don't take our word for it. Scan to look up our independent lab results yourself.

Open the lab's lookup page

Batch ID

Every vial is batch-numbered.

Each label carries a printed batch ID and a QR code, next to the research-use-only line.

Published and checkable.

All 18 products are third-party tested, and every order ships from the U.S. with tracking. Pay by card, Apple Pay, Venmo, Cash App or crypto.

All 18 products, third-party tested.

Every Certificate of Analysis by product, with the lab's name, the report date and what to enter on the lab's lookup page.

View the COA database

Compare specs side by side.

Size, form, storage, testing lab and price, product by product.

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