# Cascadia Labs > A USPP-certified peptide marketplace built exclusively for licensed physicians. US Pharmacopeia testing, FDA-aligned suppliers, and physician-gated access. ## About Cascadia Labs is a compliance-first peptide sourcing platform based in Seattle, Washington. The marketplace is closed to consumers by design — only licensed prescribers can verify credentials and access supplier listings, pricing, and product details. ## Key Facts - USPP Certified - FDA Approved Sources - Multi-Panel Domestic Laboratory Testing - Physician-Only Access (license verification required) - Based in Seattle, Washington ## Sections - [Verify Your License](https://trksy.org/aff_c?offer_id=4462&aff_id=17217&source=v1lander): Credential verification for licensed prescribers - [Testing Protocols](#testing): Details on the four-panel domestic lab testing process - [Why Compliance-First Sources Matter](#pillars): Three layers of protection — verified suppliers, domestic lab testing, physician-gated access ## Optional - [Full LLM Context](/llms-full.txt): Comprehensive site content for detailed understanding