North Shore Peptides

Yes. All products undergo independent, third-party laboratory testing for purity, identity, and net content. Certificates of Analysis (COAs) are retained for every product (and always available upon request). Each batch also passes internal documentation review, external quality audits, and compliance verification prior to release.

To shop with us, add products to your cart and submit your order. Payment instructions appear after checkout. Once your payment is received, we’ll ship your order right away.
Due to payment processing regulations for research peptides, we only accept payment via Zelle – it’s fast, secure, and easy.

At North Shore Peptides, we proudly serve our own local community with reliable, verified products for complete confidence. Our focus is to deliver a refined, trustworthy experience that reflects the standards of our clientele.

Lyophilization, also known as freeze-drying, is a preservation process that removes water from a peptide solution under low temperature and vacuum. This protects the peptide’s molecular stability, purity, and potency during storage and shipping.

Our peptides are lyophilized to:
• Extend shelf life without degradation
• Ensure consistent dosing in research applications
• Maintain structural integrity until they’re reconstituted with bacteriostatic water.

In short, lyophilization keeps peptides chemically stable, sterile, and true to specification – ensuring you receive best-in-class quality with every vial.

Because of the sensitive nature of our materials, all sales are final. North Shore Peptides does not issue returns, refunds or exchanges once an order has been placed. If you have an issue with your order, please email us at info@northshorepeptides.com

North Shore Peptides partners with domestic and international manufacturers that maintain cGMP (Good Manufacturing Practice) and ISO 9001 certifications. Every manufacturer is carefully vetted through a rigorous qualification and ongoing quality-control process to ensure consistency and reliability.

All of our products are manufactured to a minimum purity of ≥ 99%, verified through independent third-party lab testing. This meets or exceeds the standards for GMP (Good Manufacturing Practice).

Our products are in exceptionally high demand from the community. When an item is backordered, it means the product is temporarily out of stock and awaiting restock.
You’re still welcome to order – delivery for backordered items is about 2–3 weeks from your order date. Customers receive regular email updates with status and estimated fulfillment timing.

Bacteriostatic Water (BAC water) is a sterile solution for reconstituting (dissolving) lyophilized compounds like peptides in research applications. It’s required for the mixing and reconstitution of our peptide products, which come in lyophilized (freeze-dried) form for stable storage.

We now offer free shipping on all orders.
Orders placed before 5:00 PM CST ship the same business day with tracking.
Orders placed after 4:00 PM CST ship the following morning with tracking.
All packages are shipped in secure, protective packaging.

Lyophilized (powdered) peptides: Store in a cool, dry, dark place — ideally in a refrigerator (2–8 °C). For long-term preservation, peptides can be stored in a freezer (–20 °C or below). Avoid repeated temperature changes; keep vials sealed and moisture-free until use.

Reconstituted (mixed) peptides: Once reconstituted with bacteriostatic or sterile water, store in a refrigerator (2–8 °C). Discard after 90 days for optimal stability. Proper storage maintains peptide purity, stability, and bioactivity, ensuring consistent research results.

Please email us and we’d be happy to help answer any questions relating to our products or website. Please note that we are unable to provide any answers in the context of human use such as dosages or consumption, which is prohibited in our terms of use.