High Grade.
Fairly Priced.
Scientist Trusted.
Every peptide is HPLC-verified, sterile-filtered, and backed by COAs. Fast shipping. Exceptional support.
COA Testing: Identity | Mass | Purity | Endotoxin
Unmatched Quality
& Exceptional Support
At Premier Bio Labs, we are dedicated to providing you with the highest quality peptides and comprehensive support tailored for healthcare professionals and researchers. Our rigorous testing, expert guidance, and continuous improvement ensure you receive only the best for your research needs.
Quality & Compliance Guaranteed
Every batch is third-party tested with published COAs. Manufactured in FDA-registered, cGMP-certified facilities aligned to rigorous research standards.
Regulatory Certifications
Quality Testing Results
Peptide FAQ
Explore common questions about peptides and their applications.
What are peptides and their uses?
Peptides are short chains of amino acids with many roles in biological systems. They’re essential in research for understanding proteins and developing therapies. Scientists use peptides to explore how proteins interact and signal within cells.
Are your peptides for human use?
Our peptides are strictly for research purposes. They are not approved for human use or any therapeutic applications. This ensures that you can trust the quality and integrity of our research materials.
What purity standards do you follow?
We maintain high standards for peptide purity. All our products undergo rigorous HPLC, UV, and MS testing to ensure they exceed 99% purity. Our quality control process guarantees you receive the best possible materials for your research.
How should peptides be stored?
Peptides should be kept in a cool, dry place. Dry peptides can last a long time, but if reconstituted, they typically last 6-12 months under proper storage conditions to ensure stability.
What solvents are used for reconstitution?
Common solvents for reconstituting peptides include water, DMSO, and diluted acidic or basic solutions. Always refer to product details for the ideal method for each peptide.
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Do you provide certificates of analysis?
Yes, we issue Certificates of Analysis (COA) for every product. Along with the COA, we provide tracking data for the lot to ensure full transparency in the materials you receive.
What are your shipping conditions?
As soon as they arrive, please store them according to the recommended conditions to ensure optimal quality.
What’s the difference between blends and singles?
Peptide blends combine multiple peptides, which can be convenient for certain research applications. In contrast, single-ingredient peptides provide more customization options for specific research needs.
Do you source peptides in the US?
We source our peptides from reliable US manufacturers, ensuring they meet our strict transparency and quality control standards for your peace of mind.
What should I expect from the powder?
Lyophilized peptide powders can look white to off-white and may clump slightly. This is normal and doesn’t negatively impact the product’s quality.