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Frequently asked questions

Answers to common questions about our peptides, quality standards, and ordering.

What are ProPeptid products intended for?

All ProPeptid products are supplied strictly for laboratory and research use. They are not for human or animal consumption and are not intended to diagnose, treat, cure, or prevent any disease.

How pure are your peptides?

Every ProPeptid product is manufactured to a ≥99% purity standard and verified by third-party analytical testing (HPLC and mass spectrometry) on each production batch.

Do you provide a certificate of analysis (COA)?

Yes. Each batch has a batch-specific certificate of analysis. You can request the current COA for any product on our Lab Testing page or by contacting us with your lot number.

How should I store the peptides?

Products ship as a lyophilized powder and should be stored cold. We recommend -20°C for long-term storage, away from light and moisture, to preserve stability.

Where are ProPeptid peptides made?

All of our peptides are manufactured in the United States under strict quality controls.

What form do the peptides come in?

Peptides are supplied as a lyophilized (freeze-dried) powder sealed in a glass vial with a flip-top cap.

How can I place an order or request a quote?

Reach out through our Contact page with the product, dosage, and quantity you need, and our team will follow up with availability and pricing.

Still have questions?

We are happy to help with specifications, testing, and research inquiries.