Frequently Asked Questions

Ordering & Shipping

How fast do you ship?

Orders placed before 2:00 PM EST ship the same business day. All other orders ship within 24-48 hours. See our shipping policy for full details.

Do you ship internationally?

We currently ship to all 50 US states only. International shipping is not available at this time.

What payment methods do you accept?

We accept major credit cards (Visa, Mastercard, American Express, Discover), cryptocurrency (Bitcoin, Ethereum), and electronic check/ACH.

Product Quality

What purity are your peptides?

Every peptide meets a minimum 99% purity threshold as verified by HPLC analysis at an independent third-party laboratory. See our testing page for details on our QA process.

Do you provide Certificates of Analysis?

Yes — a COA from an independent lab ships with every order. Includes HPLC chromatogram and mass spectrometry data.

How should I store my peptides?

Lyophilized (freeze-dried) peptides: store at -20°C. Reconstituted peptides: store at 2-8°C and use within 30 days. Protect from light and moisture. See our reconstitution guide for complete handling instructions.

Research & Usage

Are these peptides for human use?

No. All NoProp Peptides products are sold strictly for research and laboratory use. They are not intended for human consumption, veterinary use, or any clinical application.

How do I reconstitute peptides?

Lyophilized peptides are reconstituted with bacteriostatic water. We have a detailed step-by-step reconstitution guide covering proper technique, concentration calculations, and common mistakes to avoid.

Where can I find dosage information?

Our peptide dosage guide includes reconstitution math, concentration calculations, and reference ranges for all 20+ peptides in our catalog.

What are peptides?

Peptides are short chains of amino acids (typically 2-50 residues) that act as signaling molecules in biological systems. For a comprehensive overview, see our What Are Peptides? guide.

Returns & Support

What is your return policy?

Unopened products may be returned within 14 days. Opened or reconstituted products cannot be returned due to the nature of research chemicals. Damaged or incorrect orders are replaced at no cost. See our full return policy.

How do I contact support?

Visit our contact page for support inquiries. We respond within 24 hours on business days.