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US Made & Shipped
US Made & ShippedBest Of The Best • PSpeptides
Revolutionize Science:
Embrace The Power
Of Research Peptides
US Made & Shipped
Best Of The Best • PSpeptides
Revolutionize Science:
Embrace The Power
Of Research Peptides
Hottest Peptide Picks
Hottest Peptide Picks
Testing & Quality Control
At PSpeptides, we prioritize safety, purity, and sterility above all. Our peptides are manufactured in the United States through advanced lyophilization and backed by a fully equipped in-house testing laboratory. Every batch undergoes rigorous internal analysis as well as independent third-party verification to confirm identity and to exceed industry standards for purity, endotoxin levels, and sterility.
Each peptide consistently meets or surpasses 99% purity, with LPS removed during synthesis. Every vial is required to maintain this purity threshold, and conform to strict testing standards on pH, quantity, endotoxins, and sterility.
Our goal is simple: to help move peptide science forward by supplying products worthy of the work being done with them.
Testing & Quality Control
At PSpeptides, we prioritize safety, purity, and sterility above all. Our peptides are manufactured in the United States through advanced lyophilization and backed by a fully equipped in-house testing laboratory. Every batch undergoes rigorous internal analysis as well as independent third-party verification to confirm identity and to exceed industry standards for purity, endotoxin levels, and sterility.
Each peptide consistently meets or surpasses 99% purity, with LPS removed during synthesis. Every vial is required to maintain this purity threshold, and conform to strict testing standards on pH, quantity, endotoxins, and sterility.
Our goal is simple: to help move peptide science forward by supplying products worthy of the work being done with them.
Yes, every batch is tested and the latest testing results batches that are being shipped are ALWAYS posted in our Test Reports/Certificates page! Certifications
Once your order has been processed and shipped, you’ll receive an email confirmation with your tracking number. Orders placed before 12 noon EST typically ship the same business day (later orders ship the next business day). You can use the tracking link in your email to follow your package through UPS or USPS as it travels to you. You will receive notifications via email when your package has been dropped off at the carrier, is in transit, is out for delivery, and when it is delivered. My Account | Order Tracking
We currently ship across the US and US territories with an upcoming expansion to Canada in 2026.
Our support agents are available from 9AM-10PM EST daily via call, text and email! Check out our Contact Us page for support details.