Shipping policy.

Processing times

Orders received before 5 PM Eastern Time, Monday through Friday, are packed and handed to the carrier the same day. Orders placed after that cutoff, or on a weekend or federal holiday, are dispatched on the next business day.

Processing may take an additional business day during high-volume periods or if an order requires verification. If your order will be delayed beyond one additional day, we email you before it ships.

Shipping methods and rates

We ship every order by USPS Priority Mail at a flat rate of $2.99, regardless of order size or destination within the United States. There are no weight-based charges, no surcharges, and no threshold you need to hit — the rate is the same on a single vial as it is on a bulk order.

The $2.99 charge is shown at checkout before you pay and appears on your order confirmation. Transit times are counted in business days from the date of dispatch, not the date the order is placed.

Delivery estimates

Delivery windows are estimates provided by the carrier, not guarantees. Weather, carrier volume, and regional service disruptions can extend transit beyond the estimate, and these are outside our control. Priority Mail transit times are carrier estimates, not guaranteed delivery dates.

Risk of loss and title pass to you when the carrier takes possession of the package. Section 08 covers what happens if a package is lost or damaged in transit.

Where we ship

We ship to all 50 U.S. states, including Alaska and Hawaii, as well as U.S. territories and APO, FPO, and DPO addresses. Transit times to Alaska, Hawaii, and territories are typically longer than the estimates above.

We do not ship internationally. Orders with an international billing address and a U.S. shipping address may be held for verification before dispatch.

Because we ship exclusively by USPS, we can deliver to P.O. boxes as well as street addresses.

Tracking your order

You receive an order confirmation by email immediately after checkout, and a second email with the tracking number once the label is created. Tracking can take up to 24 hours to show its first scan after the carrier collects the package — this is normal and does not mean the package has not moved.

If you have not received a tracking email within one business day of ordering, check your spam folder first, then contact us with your order number.

Packaging and discretion

All orders ship in plain, unmarked outer packaging with no product names, logos, or indication of contents on the exterior. The return address shows our shipping name only. Vials are packed with protective material to survive normal carrier handling, and each package carries a tamper-evident seal.

Inspect the seal on arrival. If it appears broken or tampered with, photograph the package before opening it and contact us.

Address accuracy

You are responsible for entering a complete and accurate shipping address, including apartment or suite numbers. We ship to the address exactly as entered at checkout.

If you notice an error, email us immediately — we can usually correct it if the label has not been generated. Once a package has shipped, the address cannot be changed. Packages returned to us as undeliverable can be reshipped once the correct address is provided, with shipping charged again; alternatively we can refund the order less the original shipping cost.

Delays, lost, and damaged parcels

Stalled tracking

If tracking has not updated for 7 consecutive days, contact us and we will open a trace with the carrier. Traces typically resolve within 5 to 8 business days.

Lost packages

If a package is confirmed lost by the carrier, or if tracking shows delivered but you did not receive it and the carrier investigation supports that, we replace or refund the order in full. Report a non-delivery within 14 days of the marked delivery date.

Damaged on arrival

Report transit damage within 7 days of delivery with photographs of the item and the packaging. We replace or refund at no cost and do not require the damaged items back. Full details are in our returns and refunds policy.