COA transparency
All 18 products are third-party tested by Freedom Diagnostics Testing, with each COA published in a public COA database. Review them before you order.
BioTech Peptides alternative
Researchers comparing BioTech Peptides for laboratory procurement can review Excalibur Peptides: a US-based supplier with published third-party documentation and domestic fulfillment.
For research and identification purposes only. Not for human consumption.
BioTech Peptides is one of the supplier names that comes up in vendor comparisons among US research labs. Useful evaluation points are whether a vendor publishes its Certificates of Analysis, which independent laboratory performs the testing, and how quickly product moves from order to receipt.
Excalibur Peptides operates against those same standards. All 18 products are tested by an independent third-party lab, Freedom Diagnostics Testing: purity by HPLC; identity by LC-MS. COAs are published in a public database, listed by product.
All product ships from Austin, Texas. Same-day processing on in-stock orders placed before cutoff, with 2–4 business day domestic delivery. For research and identification purposes only.
For research and identification purposes only. Not for human consumption.
Research-peptide procurement increasingly relies on documented inbound checks rather than product-page descriptions. Laboratories commonly look for: independent COA, identity confirmation (LC-MS or FTIR), batch numbers on vials, and a clear research-use-only designation across every customer touchpoint. Each vendor's documentation is worth checking directly.
When evaluating any supplier, the audit focuses on documentation: who issued the COA, when it was issued, and which material it describes. Excalibur's COA process is straightforward — an independent laboratory (Freedom Diagnostics Testing) releases the report, the report is indexed publicly at /coa by product, and the vial carries a printed batch number for lab records. Researchers do not have to email anyone to verify what they are about to use in a binding or signaling assay.
Catalog size is often described in totals, but a lab's working list is usually specific. Cell-signaling work centers on BPC-157, TB-500, and GHK-Cu. Receptor and growth-axis research draws on Tesamorelin, GHRP-6, MOTS-C, and the GLP-2T / GLP-3R class. Antimicrobial and signaling assays bring in LL-37 and NAD+. Blends like Wolverine and KLOW combine several of these peptides in one vial.
Excalibur ships that working catalog from Austin, Texas. Orders placed before 2 PM EST on a business day ship the same day, and each product page shows the product's current availability.
Supplier criteria to review before placing a procurement order. Excalibur entries describe our own documentation.
| Criterion | Excalibur Peptides | BioTech Peptides |
|---|---|---|
| COA Issuance | Independent third-party lab, published online | See vendor's current documentation |
| Purity Reporting | HPLC result on product COA | See vendor COAs |
| Identity Confirmation | LC-MS, per the COA | See vendor COAs |
| COA Database | Public, listed by product | See vendor site |
| Shipping Origin | Austin, Texas — domestic only | See vendor policy |
| Order Processing | Same-day on in-stock, before cutoff | See vendor policy |
| Payment Methods | Cards, Apple Pay, Venmo, Cash App, crypto | See vendor checkout |
| Catalog Focus | Research-staple catalog, shipped from Austin, TX | See vendor catalog |
| Research-Use-Only Disclosure | Product page and checkout | See vendor site |
Excalibur entries describe our own documentation. For other suppliers, review their current published documentation directly; we make no claims about other vendors. For research and identification purposes only.
Every product in the Excalibur catalog is analyzed by an independent third-party laboratory: all 18 by Freedom Diagnostics Testing. The HPLC purity result is reported on each product's published Certificate of Analysis, next to the identity result (LC-MS), and the certificate names the laboratory that performed the work.
Core research compounds in the Excalibur catalog. All 18 products are third-party tested; each product's COA is published in the COA database.
All 18 products are third-party tested by Freedom Diagnostics Testing, with each COA published in a public COA database. Review them before you order.
Ships from Austin, TX. Same-day order processing on in-stock compounds with 2–4 day domestic delivery.
Purity by HPLC; identity by LC-MS (Freedom Diagnostics Testing), as reported on each product's published COA. Full documentation at /coa.
All products for research use only. Not for human consumption.
Excalibur supplies research peptides for in-vitro laboratory use. It publishes third-party COAs in a public database, listed by product, reports HPLC purity and identity (LC-MS) on those certificates, and ships same-day from the US. Research use only.
Each product's COA includes the identity confirmation (LC-MS), purity percentage by HPLC, net content, the tested sample reference, and the analytical lab signature. COAs are listed by product at /coa.
BPC-157, TB-500, GHK-Cu, Tesamorelin, GHRP-6, NAD+, MOTS-C, LL-37, Wolverine Blend, KLOW Blend, and additional research peptides. Full catalog on the homepage.
Austin, Texas. Same-day processing on in-stock items ordered before cutoff, with 2–4 business day domestic delivery.
No. All compounds are sold strictly for in-vitro laboratory research and identification purposes. Not for human consumption.
Excalibur publishes one current Certificate of Analysis per product in the public COA database at /coa and links it from the product page, with reports for earlier batches listed below it as previous reports. The certificate documents the sample the laboratory tested; the batch number printed on your vial can be recorded alongside it in your lab records.
HPLC for purity and LC-MS for identity, performed by an independent laboratory (Freedom Diagnostics Testing) and reported side by side on the certificate. All 18 products are third-party tested; each product's COA is published in the COA database.
In-stock orders placed before the same-day cutoff ship from Austin, Texas the same business day. Domestic transit is 2–4 business days. Orders placed Friday after cutoff or over weekends ship the next business day.
Each product page shows current availability. When a product is out of stock, its page marks it as available on backorder, and it ships when restocked.