FAQ

What are your products intended for?

All products sold by Sterling Peptides USA are supplied strictly for laboratory research and analytical purposes only. They are intended for use in controlled research environments by qualified professionals.

Are your peptides for human or veterinary use?

No. Our products are not intended for human or veterinary use, and are not for diagnosis, treatment, or consumption of any kind.

Do you provide purity or testing information?

Yes. We work with third-party analytical laboratories to test batches for identity and purity. Certificates of Analysis (COAs) are made available whenever applicable so researchers can review batch-specific data.

What does “Research Use Only” mean?

“Research Use Only” indicates that products are supplied strictly for laboratory research, in-vitro testing, and analytical applications. They are not approved for medical, cosmetic, or dietary use.

How should peptides be stored?

Most lyophilized peptides are recommended to be stored in a cool, dry environment away from direct light. For long-term stability, refrigerated or freezer storage may be appropriate depending on research protocols. Researchers should follow proper laboratory handling guidelines.

📦 Ordering & Shipping

Where do you ship from?

Orders are processed and shipped from within the United States.

How long does shipping take?

Orders are typically processed within 1–2 business days. Shipping times vary based on location and carrier, but most domestic deliveries arrive within several business days after dispatch.

How are products packaged?

Products are packaged securely to help maintain integrity during transit. Protective materials are used to reduce exposure to heat, light, and physical damage.

Do you ship internationally?

International shipping is not available at this time.

Is checkout secure?

Yes. Our website uses secure encryption technology to help protect your payment and personal information during checkout.

📄 Certificates of Analysis (COAs)

How do I find a COA for my product?

COAs can be accessed through our COA page. You can search by product name or batch number when available.

What if I can’t find the COA I need?

If a COA is not listed, please contact our support team with your product name and batch number, and we will assist if documentation is available.

📬 Support & Policies

Can I return products?

Due to the nature of research materials, returns may be limited. Please review our Refund Policy or contact support for assistance regarding your specific order.

How can I contact customer support?

You can reach us through the Contact page on our website. Please include your order number (if applicable) for faster assistance.

⚠️ Important Notice

All products sold by Sterling Peptides USA are intended strictly for laboratory research use only. They are not intended for human or animal use, and are not for therapeutic, diagnostic, or consumable purposes.