A U.S.-based research peptide supplier. We supply lyophilized peptides for in-vitro laboratory research and publish third-party Certificates of Analysis online.
A batch number, a QR code and the research-use line on every label.
How we work
Three things we hold to for every order.
Independent analysis
All 18 products are third-party tested by Freedom Diagnostics Testing: purity by HPLC; identity by LC-MS. Each product's COA is listed in our COA database.
Sealed, labeled vials
Every product is supplied as a lyophilized powder in a sealed glass vial, labeled with the product name, size, a printed batch ID, a QR code and the research-use-only line.
Reliable supply
Made in fresh batches and kept frozen at −10 °F in the U.S. until the day it ships. Orders ship with tracking, and each vial label carries a printed batch number and QR code.
Excalibur Peptides at a glance
Company
Excalibur Peptides is a U.S.-based supplier of lyophilized research peptides for in-vitro laboratory research.
Ships from
Austin, Texas. U.S. shipping only; no international shipping.
Order processing
Orders placed before 2 PM EST on a business day ship the same day.
Delivery
2–4 business days within the U.S., with tracking.
Shipping cost
$10 flat rate within the U.S.; free on orders over $150.
Storage before shipping
Made in fresh batches, then frozen and kept at −10 °F (about −23 °C) until the day it ships.
All 18 products are third-party tested by Freedom Diagnostics Testing (purity by HPLC, identity by LC-MS); each product's COA is published in the COA database.
Verify a COA
Enter the search code printed on the report on Freedom Diagnostics Testing's COA lookup page, or search "Excalibur Peptides". All COAs in the COA database
Vial labels
Every vial label carries a printed batch ID and a QR code.
Payment
We accept credit and debit cards, Apple Pay, Venmo, Cash App and cryptocurrency.
Card security
Card details are tokenized in your browser by our payment processor; our servers receive only a payment token, never your card number. If your bank asks for verification (3-D Secure), it happens during checkout.
Buyers
21 or older, with a research-use certification at checkout.
Returns
All sales are final. Damaged or incorrect orders are replaced at no charge when reported with photos within 7 days of delivery.
19372 Ronald Reagan Blvd #310-444, Georgetown, TX 78628
Use
For in-vitro laboratory research use only. Not for human consumption. Not approved by the FDA for human or veterinary use.
For in-vitro laboratory research use only. Not for human or animal consumption.
Our mission
To support laboratory research by supplying research peptides with transparent documentation. Certificates of Analysis from independent third-party laboratories are published online, so researchers can review identity and purity data before they order. Every product is sold strictly for in-vitro laboratory research, and each published result is available in our Certificates of Analysis database.