K

Research Use Only

For researchers
who demand
proof,
not promises.

Every batch independently tested. Every certificate of analysis published — including the ones that failed. That is the Keystone standard.

Third-party tested
COA published
Batch-level transparency

The Standard

Transparency is the product.

Third-Party Verified

Every batch submitted to accredited, independent laboratories — not internal testing. Results are published regardless of outcome. You can verify every claim before you order.

Full COA Archive

Certificates of analysis are published for every batch — including batches that failed testing and were subsequently destroyed. We consider a failed batch that is disclosed to be a mark of integrity, not a liability.

Batch Traceability

Complete chain of custody from supplier through receipt to fulfillment. Each order references the specific batch number so you can cross-reference against the published test results at any time.

RUO Standard

Products are supplied exclusively for in vitro research, laboratory study, and experimental purposes consistent with 21 CFR and applicable federal guidelines. Verified researcher accounts and a mandatory attestation are required before catalog access is granted.

The Catalog

Authorized researcher access only.

Researcher Access Required

View the Full Catalog

This catalog is restricted to verified research accounts. Login to your existing account, or submit a request for access.

Access is granted to qualified researchers. Mandatory RUO attestation required.