SHIPPING POLICY
Effective Date: May 1, 2026
OVERVIEW
Katharos Laboratories, Inc. (“Katharos”, “we”, “us” or “our”) provides controlled domestic
distribution of research-grade materials within the United States. All shipments are handled in
accordance with our quality assurance, temperature-control, and research use only handling
protocols to maintain Product integrity and traceability. This shipping policy (“Shipping Policy”)
is incorporated into and subject to the Terms governing all Product purchases. Any capitalized
terms not defined in this Shipping Policy have the meanings provided in the Terms.
We offer free standard delivery within the U.S. for orders exceeding $300.
DOMESTIC DISTRIBUTION
Please allow 1 to 2 business days for order verification and processing prior to
shipment. Delivery timelines listed below represent estimated carrier transit times and begin
only after payment confirmation and quality release. We reserve the right to determine the most
secure and reliable carrier or method necessary to preserve shipment integrity and ensure
compliance with research transport requirements.
STANDARD SHIPPING
 Processing Time: 1 to 2 business days
 Transit Time: 3 to 5 business days
 Estimated Delivery: 4 to 7 business days after payment confirmation
2-DAY SHIPPING
 Processing Time: 1 to 2 business days
 Transit Time: 2 business days
 Estimated Delivery: 3 to 4 business days after payment confirmation
OVERNIGHT SHIPPING
 Processing Time: 1 to 2 business days
 Transit Time: 1 business day
 Estimated Delivery: 2 to 3 business days after payment confirmation
Note “overnight” refers to carrier transit time following shipment, not from the time the order is
placed. Orders submitted after our daily processing cutoff or during high-volume periods may
require up to 2 business days before dispatch.

HOLIDAYS
We do not ship on federal holidays or weekends. Orders placed late Friday or over the weekend
are typically fulfilled the following Monday.
INTERNATIONAL SHIPMENTS
We do not currently ship internationally. All purchases and deliveries are limited to research
partners and institutional addresses within the United States.
CONTACT US
For questions about this Shipping Policy, please contact us at:
Katharos Laboratories, Inc.
Email: customerservice@katharoslab.com
POLICY CHANGES
We reserve the right, at our discretion, to change, modify, add, or remove portions of these Terms
at any time. Material changes will be posted on the Website or otherwise communicated to you.
All changes will be effective immediately upon posting to the Website.