Frequently Asked Questions

All Sterling Research products are intended strictly for laboratory research purposes only. They are not for human or animal consumption. The Research Use Only page sets out what that means for you as a buyer.

Certificates of analysis for the batches we sell are published on the Lab Results page. Each certificate is shown exactly as the testing laboratory issued it.

Minor variations in appearance between batches may occur due to differences in raw materials, manufacturing processes, or storage conditions. These variations do not affect research suitability.

Peptides are supplied as lyophilised (freeze-dried) powder to support stability during storage and transport. The form of each product is listed on its product page.

Vial cap colors may vary between batches depending on supplier availability. Cap color does not affect product quality.

Lyophilised powders may appear as a solid cake, loose powder, or fragmented material. All forms are normal for research peptides.

Products should be stored according to the instructions listed on the product page and label. In general, materials should be kept cool, dry, and protected from light.

Exposure to extreme heat or freezing conditions may impact product stability. Sterling Research is not responsible for degradation caused by improper storage after delivery.

Sterling Research is not responsible for carrier delays. Please contact the carrier directly for delivery issues.

Orders are processed Monday through Friday, excluding holidays.

Orders typically process within 1 business day. Shipping times vary by destination and carrier.

Tracking information is provided once an order has shipped. Please allow time for carrier systems to update.

Sterling Research currently ships to Canada. See the Shipping Policy for details.

Once a shipping label is created, tracking updates may not appear immediately. This does not indicate an issue with your order.

Orders cannot be modified or canceled once processing has begun.

Report any issues within 7 days of delivery.

• Missing Items: Contact us immediately for verification and resolution.
• Damaged Item on Arrival: Contact us within 7 days of delivery with photos of both the package and damaged item (required).
• Wrong Items: Contact us immediately for verification and resolution.

All confirmed issues are resolved with a replacement or store credit at the discretion of Sterling Research. Cash refunds are not issued.

Sterling Research is not responsible for orders marked delivered by the carrier or for delays due to incorrect address information.

Order status can be viewed through your account or order confirmation email.

Registered customers can access their order history by logging into their account.

A confirmation email is sent after checkout. If you do not receive one, check your spam folder.

Use the password recovery link on the login page to reset your password.

Sterling Research maintains a zero-tolerance policy for misuse of products or violation of research-use terms.