Last Updated: 09/25/2026
Company Name: Seven Sigma International LLC
Address: 1309 Coffeen Ave STE 1200, Sheridan, WY 82801
Phone: (202) 202-2439
Website: https://sigmapeptides.com
Contact: [email protected]
Sigma Peptides does not accept returns or issue refunds for change of mind. Wrong, damaged or lost orders are always replaced or refunded in full (see below). All products sold through this website are sensitive research-use materials that cannot be restocked, resold, or verified for integrity once they have been delivered. By placing an order, you acknowledge and accept that your purchase is final, except for wrong, damaged or lost orders as described below.
This policy protects the integrity of research materials across our supply chain.
If we ship the wrong item, your order arrives damaged, or your package is lost in transit, we will send a replacement or issue a full refund, including shipping, at no cost to you.
Report the issue to [email protected] within 48 hours of the delivery date (for lost packages, within 48 hours of the expected delivery date).
Include your order number and photos of the product, packaging and shipping label (not needed for lost packages).
If we need the item back, we will send you an RMA number and a prepaid return label. Please do not return items without an RMA.
If a product appears to be misidentified or does not meet the specifications listed on its product page, email [email protected] within 14 days of delivery with your order number, the lot number on the vial label and a description of the issue. Please keep the product sealed if you can.
We will review the batch records and the Certificate of Analysis and may arrange independent testing. If the product is confirmed to be misidentified or out of specification, we will send a replacement or issue a full refund, including shipping. The opened-product exclusion below does not apply to confirmed specification failures.
The following situations are not eligible for a refund, return, replacement or credit:
Appearance variations consistent with lyophilized materials — including but not limited to differences in powder distribution, settling, wall adhesion, cake structure, volume, and coloration. These are inherent characteristics of lyophilized compounds and do not constitute defects or damage
Buyer’s remorse or change of mind — including dissatisfaction with purchase timing, quantity, or product selection
Opened, used, or handled products — any product that has been unsealed, accessed, or physically manipulated after delivery, unless it is confirmed to be misidentified or out of specification (see above)
Improper storage or handling — products stored outside of recommended conditions or otherwise compromised after delivery
Carrier delays or weather-related disruptions — late delivery caused by the carrier, weather or other circumstances beyond our control. Packages lost in transit are covered under Wrong, Damaged or Lost Orders
Subjective quality or efficacy concerns — claims regarding perceived potency, expected results, or subjective product performance. Objective specification failures are covered above
If a package is refused, not claimed, or returned to us because of an incorrect or incomplete address, we refund the product price to your original payment method once the package is back with us. The original shipping charge is not refunded. If you prefer, we can reship the order instead; a new shipping charge applies.
Orders can be cancelled free of charge before they ship. See the Terms & Conditions.
If a refund is approved:
Refunds are processed within five to ten (5–10) business days after inspection of the returned product is complete, or after your claim is approved when no return is needed (for example, lost packages)
Funds will be issued to the original payment method used at the time of purchase. Sigma Peptides is not responsible for processing times imposed by your bank or payment provider
If the original payment method is no longer available, we may offer store credit instead
If your order was wrong, damaged or lost, submit your claim as follows:
Email [email protected] within 48 hours of delivery (for lost packages, within 48 hours of the expected delivery date) with:
Your order number
Clear photographs of the product, packaging, and shipping label (not needed for lost packages)
A written description of the issue (wrong, damaged or lost order)
We review your claim and reply by email. Please do not send any product back until we confirm by email
If approved, an RMA number and return instructions will be provided. We include a prepaid return label, so returning the item costs you nothing
We confirm by email when your refund or replacement has been processed
We review each claim against this policy and reply by email with our decision and the next steps.
All products sold by Sigma Peptides are intended strictly for in-vitro laboratory research and analytical testing purposes only. They are not intended for human or animal consumption, medical, therapeutic, diagnostic, or veterinary use.
Orders that appear to be intended for human or animal use may be cancelled and refunded.
For questions regarding this policy, contact:
Seven Sigma International LLC
1309 Coffeen Ave STE 1200, Sheridan, WY 82801
(202) 202-2439
📧 [email protected]
🌐 https://sigmapeptides.com
I understand these products are for research use only and not for use in people or pets. I am purchasing these items for laboratory or research purposes only. They are not for human or animal use, not medicine, and not for diagnosing, treating, or curing any condition. I will follow all applicable laws and safe handling rules. I accept that Sigma Peptides, this website, and our affiliates are not responsible for how I use or store these items once delivered, to the fullest extent allowed by law.
