Shipping & Returns

Last Updated: July 2026  |  Effective Immediately

Order Processing & Handling

Orders placed through ZC Labs are typically processed and dispatched the same or next business day (Monday through Friday, excluding federal holidays); during high-volume periods please allow up to 2 business days before shipment. During this time, our fulfillment team verifies order details, prepares materials under appropriate handling conditions, and packages each shipment according to our quality assurance standards.

Orders placed after 12pm Eastern Time are typically processed on the following business day. Orders submitted on weekends or holidays will begin processing on the next available business day.

Shipping Methods & Estimated Transit Times

ZC Labs ships exclusively within the contiguous United States, Alaska, and Hawaii. We currently do not offer international shipping. Available shipping methods are as follows:

• FedEx 2Day: Estimated 2 business days in transit following dispatch. Free on orders of $199 or more after discounts; $12.99 flat rate under $199.

Transit time estimates begin from the date of confirmed shipment, not the date of order placement. ZC Labs is not responsible for carrier delays beyond our control, including weather events, service disruptions, or high-volume shipping periods.

Shipment Tracking

A tracking number will be emailed to the address associated with your order upon dispatch. Tracking information may take up to 24 hours to become active within the carrier’s system after the initial scan. If you have not received a tracking notification within 3 business days of your order date, please contact our support team at support@zc-labs.com.

Packaging Standards

All orders are professionally packed and sealed according to our quality-control and shipping standards to help maintain product integrity during transit, and dispatched from our U.S. fulfillment facility. Packaging is designed to maintain product integrity throughout the shipping process.

Lost or Missing Packages

If your tracking information shows a package as delivered but you have not received it, please take the following steps before contacting ZC Labs:

• Verify the delivery address on your order confirmation email.
• Check with neighbors, building management, or other household members.
• Allow 24 additional hours, as carriers occasionally mark packages as delivered prior to final delivery.

If a package remains unlocated after 48 hours of the reported delivery date, please contact us at support@zc-labs.com with your order number and tracking information. We will work with the carrier to initiate a trace investigation. Claims for lost packages must be submitted within 14 days of the estimated delivery date.

Damaged or Incorrect Shipments

Damage and wrong-item claims are covered by our 30-Day Money-Back Guarantee. Email support@zc-labs.com within 30 days of delivery with your order number, and photos if there is visible damage. You get a full refund or a free replacement, your choice, and nothing needs to be shipped back.

Our Guarantees

Every retail order is covered by two promises:

• 30-Day Money-Back Guarantee. Purity issue, wrong item, or damage on arrival? Full refund or a free replacement, your choice. Nothing to return. One claim per customer; wholesale orders excluded.
• 5-Day Delivery Promise. If a retail order takes more than 5 business days to arrive after payment is confirmed, we automatically email you $50 off your next order of $100 or more.

Need to change or cancel an order? Contact support@zc-labs.com as soon as possible. Changes are possible only before your order is dispatched.

Full terms: zc-labs.com/guarantee.

Customer Support

For all shipping-related inquiries, please contact our support team:

• Email: support@zc-labs.com
• Response Time: Within 1–2 business days
• Hours: Monday–Friday, 9:00 AM – 5:00 PM Eastern Time