Best Seller Peptides

Why Choose Purity Peptides?

Since our founding, Purity Peptides has been dedicated to providing the research community with the highest quality peptides and compounds. Our commitment to purity, consistency, and scientific integrity has made us a trusted partner for laboratories and researchers worldwide.

Every product in our catalog undergoes rigorous third-party testing to ensure maximum purity and potency. We provide comprehensive certificates of analysis and maintain the highest standards of quality control throughout our manufacturing process.

🥼 99%+ HPLC Purity
Every batch is third-party tested with comprehensive certificates of analysis
🔬 Research Grade
Formulated specifically for laboratory research applications and studies
🛡️ Quality Assured
Manufactured in FDA-registered facilities with strict quality control protocols
🌎 USA-Made
Proudly manufactured in the United States with domestic sourcing when possible

Frequently Asked Questions

Research chemicals · Not for human use · Fast, discreet shipping

Are your products for human use?

No. All products are sold strictly as research chemicals. They are not intended for human consumption, medical, or veterinary use. Buyer assumes responsibility for lawful research use only.

How pure are your peptides?

Each batch is tested to 99%+ purity via HPLC and Mass Spectrometry. Certificates of Analysis (COAs) are available per lot.

Do you provide Certificates of Analysis (COAs)?

Yes. COAs verifying identity and purity are available for every batch. Find links on product pages or contact support with your lot number.

What makes your products the best and purest?

GMP production, independent U.S. lab testing, 99%+ purity, COA transparency, rapid fulfillment, and responsive support.

How long does shipping take?

Orders ship within 24 business hours. Typical U.S. delivery is 2–5 business days. Tracking is emailed at dispatch.

Do you ship internationally?

Yes. International customers are responsible for understanding and complying with local import regulations for research chemicals.

Is your shipping discreet?

Yes—plain, unmarked packaging for privacy. Documentation references research materials only.

Do you provide tracking?

Yes. You’ll receive a tracking number by email as soon as your order ships.

How should peptides be stored?

Store vials in a cool, dry place away from light. For long-term stability, refrigerate or freeze in sealed, moisture-resistant containers.

Do products include bacteriostatic water or supplies?

Unless stated otherwise, products are supplied as lyophilized powders. For research use, sterile vials and bacteriostatic water are available separately.

What solvents are commonly used in research?

Researchers often use sterile water, bacteriostatic water, or other lab-grade solvents appropriate to the compound. We do not provide instructions for human/animal administration.

Can you advise on dosing or protocols?

No. We cannot provide dosing or medical guidance. All products are for laboratory research only. Please consult published literature for study design.

Are these products legal to purchase?

Purchases for bona fide research are generally permitted. The buyer must ensure local compliance before ordering.