FAQ
Ordering, shipping, and testing
Who can buy from North Wall?
North Wall sells only to qualified researchers aged 21 and over, for in-vitro laboratory research. A free account confirms this before any product or price is shown.
When will my order ship?
Orders placed by 3:00 PM ET, Monday to Friday, ship the same day. Standard shipping is free over $100; 2-day and overnight are available at checkout.
Do vials need cold shipping?
No. Lyophilized vials are stable in transit without cold chain. Store at −20 °C on arrival.
How do I verify my vial?
Every label carries a QR code that opens the certificate for that exact lot. You can also search any lot in the COA library.
How is each lot tested?
Every lot is tested at an ISO/IEC 17025 accredited third-party laboratory against eight assays, including HPLC-UV purity, LC-MS identity, net peptide content, endotoxin, sterility, and heavy metals.
Are there volume discounts?
Yes. Bulk tiers and Build a Box pricing apply automatically in the cart for signed-in researchers. No code is needed.
Which payment methods do you accept?
Visa, Amex, Apple Pay, Google Pay, and bank payment (ACH), which saves 5%.
What if a shipment is lost or damaged?
Every order includes free shipment protection. Tell us within 7 days and we reship at no cost.
Can you advise on how to use a product?
No. North Wall provides specification data only and does not give use, preparation, or dosing guidance.