Lab-grade quality
Peptides selected against research-grade standards for reliable, consistent results.
Lab-grade research peptides at fair, transparent prices, with independent testing behind every batch.
Westcoast Labs started because our founders kept paying premium prices for peptides that didn't meet research-grade standards. So we set out to do it differently: high-quality research peptides at fair, transparent prices.
Research shouldn't be limited by inflated costs.
Based on the West Coast and shipping nationwide, we keep a curated catalog, test every batch independently, and publish the results so you can check them yourself.
Shop the catalogWe believe researchers deserve reliable materials at honest prices. That means no hidden costs, no surprise fees, and quality documentation you can verify for every lot.
Our research peptides are selected for consistency, transparency and performance. Each batch is tested for identity (LC-MS) and purity (HPLC) before it ships, and we stock the solvents you need alongside them.
Five commitments behind every order.
Peptides selected against research-grade standards for reliable, consistent results.
Straightforward prices with no hidden costs or surprise fees, plus bundle savings.
Orders before 5 PM PT ship the same day, keeping your research on schedule.
Real help for experienced labs and first-time buyers alike, within 1–2 business days.
Based on the West Coast, shipping nationwide, with international orders on request.
Browse our complete catalog of research peptides with verified purity and full documentation.
Every product page shows the current batch's purity, test date and lab. Each vial ships with a printed CoA for its batch.
See CoA results on every product →