Last updated: 06/02/2025
Company Name: Sigma Peptides
Website: https://sigmapeptides.com
Contact Email: support@sigmapeptides.com
🧾 Accepted Payment Methods
We currently accept the following secure payment options:
Credit Cards: Visa, Mastercard (processed via secure third-party platforms)
Note: All payments are processed through PCI-compliant, third-party licensed providers. We do not store your full payment card information. 3D Secure verification may be required for additional fraud protection.
⏳ Order Processing Time
Orders are processed within 1–3 business days after payment confirmation.
Orders placed on weekends or holidays are processed on the next business day.
Orders requiring manual review or ID verification may experience minor delays. We will notify you if this applies.
🚚 Shipping Regions
We currently ship to:
All 50 U.S. States
Puerto Rico
U.S. territories and military APO/FPO addresses
📦 Shipping Methods & Delivery
Carrier: USPS (United States Postal Service)
Shipping Options:
Priority Shipping (2–4 business days)
Express Shipping (1–2 business days) – available in most areas including Puerto Rico
Tracking: Provided by email once your order ships
Signature Requirement: May be applied to high-value or sensitive orders
⚠️ Shipping Terms
Once marked as “Delivered” by USPS, Sigma Peptides is not liable for theft, delays, or misplacement by the carrier. Please verify delivery locations with your local post office.
You are responsible for providing accurate and complete shipping information. We are not liable for undeliverable orders due to address errors.
🔁 Returned or Undeliverable Packages
Returned shipments due to address errors or refusal will require a new shipping fee to reship.
Alternatively, we can issue a partial refund minus shipping and restocking fees.
🎁 Packaging
All orders are shipped in discreet, unbranded packaging. There are no logos or references to product type, peptides, or research materials on the exterior.
🧪 Product Use Policy
All items sold by Sigma Peptides are strictly for in-vitro laboratory research only and are not intended for human or animal use, consumption, or diagnostic purposes.
By purchasing, you acknowledge and agree:
You are 21 years of age or older
You will not misuse these materials
You understand and accept the risks associated with research materials
❌ Order Cancellations
We are unable to guarantee cancellations after payment. If the order has not yet shipped, please contact us immediately and we will do our best to assist.
📮 Shipping to Puerto Rico
Yes, we ship to Puerto Rico.
Orders to Puerto Rico are handled through USPS Priority or Express Shipping with full tracking. Delivery times are typically 2–5 business days, though minor delays may occur due to weather or customs clearance.
📩 Questions or Support?
For help with payment, shipping, or order status:
We are here to assist Monday–Friday during business hours (U.S. Central Time).