Free US shipping on all orders over $200.00

Customer Support

Support for Your Research Journey

NATIONAL SCIENCE LABS, LLC values transparent communication and swift issue resolution for every investigator. Questions on shipment status, batch records, or processing? Our support staff stands ready.  

Responses arrive within one business day, Monday–Friday. Submit via the form or email [email protected] directly.

Shipping Information

NATIONAL SCIENCE LABS, LLC dispatches research-grade peptides to U.S. addresses with discreet, temperature-stabilized packaging as needed.  

  • Orders before 12:00 PM EST usually ship the same business day  
  • Domestic: 2–4 business days (standard)  
  • International: 5–14 business days, varying by location and customs  
  • Free shipping on continental U.S. orders over $200  
  • Tracking emailed upon dispatch  

Check status in your account or contact support with order details.

Returns & Refunds Policy

General returns are not accepted because our products are research materials. Returns are accepted only for items that arrive damaged, defective, or incorrect.

  • Approved claims may qualify for a replacement or refund. Exchanges are not accepted.
  • Approved refunds are issued to the original payment method after any required return is received and inspected.
  • Opened or used products are not returnable for preference-based or general returns.

Contact [email protected] with your order number, a description of the issue, and clear photographs.

Common Account & Order Questions

Shipment tracking emails automatically; view also in account dashboard.

Batch CoAs download from product pages or dedicated CoA section. 

Contact Us Directly

Our specialists assist with any order aspect. Include order number and question summary for quickest reply.

Mailing Address

236 E. MAIN ST, STE 47
SEVIERVILLE, TN 37862, USA

Timing

9:00 AM – 5:00 PM (EST)

Important: The products on this website are for legitimate research use only. They are not intended for human consumption, and are not intended to diagnose, treat, cure, or prevent any disease.

By proceeding, you confirm that you are 21 years of age or older, understand these terms, and have a bona fide research purpose for purchasing these products.

Note: Compounds are sold individually and do not include supplies (e.g., bacteriostatic water or syringes). Most are sold in powder form and require reconstitution with a suitable diluent prior to research.

This notice will not appear again for 30 days after acceptance.