This page covers how orders leave our Houston warehouse, what carriers we use, how long delivery takes, and what to do if something arrives damaged or missing. If a detail here ever conflicts with what you see at checkout, contact us before paying.

Where We Ship

Amino USA ships to US addresses only — all 50 states, plus APO and FPO addresses.

We do not ship internationally. If you place an order from outside the United States, we will cancel and refund it rather than hold your funds.

P.O. Box and APO/FPO addresses are supported through USPS Priority Mail only. UPS does not deliver to these addresses, so the carrier is selected for you automatically at checkout when one of these address types is entered.

Dispatch Times and Cutoff

Orders placed before 12:30 PM CST on a business day dispatch the same day. Orders placed after the cutoff, or on weekends and federal holidays, dispatch the next business day.

"Business day" means Monday through Friday, excluding federal holidays. We do not dispatch on Saturdays or Sundays.

During site-wide sales and peak periods, dispatch may take an additional business day. If your order is delayed beyond that, we will email you with a revised ship date.

Carriers and Rates

Rates are calculated at checkout based on the carrier and service selected. The final charge shown in your cart is the charge that applies.

One note on our homepage banner: it has advertised "free shipping" while this policy itemizes charges. The itemized rates above are the accurate ones. If the banner and your cart total disagree, trust the cart total, and tell us about the mismatch so we can fix it.

Delivery Estimates

UPS 2-Day Air arrives within two business days of dispatch. UPS Ground typically arrives within three to five business days of dispatch, depending on destination distance from Houston. USPS Priority Mail typically arrives within two to four business days of dispatch.

These are carrier estimates, not guarantees. Weather, carrier disruptions, and holiday volume can extend delivery. Once a package is in the carrier's hands, tracking information is the most reliable source of status.

We are not responsible for carrier delays, but we are responsible for making sure you get what you paid for. If a package is lost in transit, contact us and we will file the carrier claim and reship your order.

Packaging

All peptides ship as lyophilized powder in sealed vials, with the batch ID printed on the label. Vials are cushioned and boxed to protect against transit damage.

We do not include packing slips or invoices in the box unless you request one. If you need documentation for your lab records, contact us before ordering and we will include it.

Temperature: our products are shipped at ambient temperature. Lyophilized powder does not require cold-chain shipping for transit. Store vials per the storage guidance on the product page or in our Knowledge Hub once they arrive.

Order Tracking

A tracking number is emailed to you when your order dispatches. If you do not receive tracking within one business day of your order's expected dispatch date, check your spam folder first, then contact us.

You can also track orders through your account on https://amino-usa.us.com/ if you created one at checkout.

Damaged, Missing, or Incorrect Orders

Report within 24 hours of delivery. That window applies to damaged vials, missing items from a multi-item order, and incorrect products shipped.

What to do:

1. Photograph the outer packaging, the inner packaging, and the vial or vials in question.
2. Email us at sales@amino-usa.us.com with your order number and the photographs attached.
3. We will confirm the issue, then reship the damaged or missing item or refund it — your choice.

We cover return shipping on damaged or incorrect items. You will not be asked to pay postage to return a product we shipped in error.

Late reports: if you report damage after the 24-hour window, we will still review the claim, but resolution may be slower and depends on what the photographs show. Report promptly — it makes everything easier.

Undeliverable and Refused Packages

If a package is returned to us as undeliverable — wrong address entered at checkout, repeated failed delivery attempts, or refusal at the door — we will contact you to arrange reshipment. Reshipment requires payment of the original shipping charge again. Original shipping charges are not refunded on undeliverable orders.

If the address error was ours, we cover the reshipment in full.

International Orders and Customs

We do not ship internationally. Orders placed from outside the US will be cancelled and refunded in full, minus any payment processor fees that are not returned to us. We do not mark packages as gifts, under-declare values, or falsify customs documentation.

Changes and Cancellations

You can change or cancel an order before it dispatches. Once dispatch has occurred, the order cannot be cancelled or modified.

To request a change, contact us with your order number as soon as possible. If the order has already left the warehouse, we will help you with a return once it arrives, subject to the return policy.

Questions About Shipping

If anything on this page is unclear, or if your order does not match what is described here, reach us through:

• Email: sales@amino-usa.us.com
• Message box: on the site at https://amino-usa.us.com/

We answer weekday inquiries within one business day.

All products sold for laboratory research purposes only. Not for human consumption. Not for diagnostic or therapeutic use.