Terms & Conditions

All materials sold by Chengdu Biotech are supplied strictly for laboratory research use. They are not for human or veterinary use, and are not food, drugs, cosmetics, or medical devices. Nothing sold here is intended to diagnose, treat, cure, or prevent any condition.

By ordering you confirm that you are at least [18 / 21] years old, that you are qualified to handle research materials, and that you will not resell or administer them for any purpose prohibited above. You are responsible for compliance with the laws that apply where you are.

Our catalog is private. Accounts are reviewed before approval, and we may decline or revoke access at our discretion. Keep your login details secure — you are responsible for activity on your account.

An order is an offer to buy. It is accepted only when we confirm payment. We may cancel and refund any order before dispatch, including where an item is mispriced, unavailable, or where an order appears fraudulent.

Prices are shown in US dollars and exclude shipping, which is added at checkout. We accept cryptocurrency only. At checkout we quote an exact amount in your chosen coin and lock it for 60 minutes; if the payment does not arrive in full within that window, the order expires and any funds received are handled under the underpayment terms below.

Send only on the network we specify. Tokens such as USDT, USDC, and PYUSD exist on more than one blockchain. Funds sent on a network other than the one shown with the payment address cannot be recovered by us or by anyone else.

Crypto payments are irreversible. Underpayments and overpayments are resolved case by case — contact us at [support email] within [X] days.

We ship from two locations. US-warehouse orders ship domestically at a flat rate. Overseas orders ship direct from our facility and offer two speeds at checkout: Expedited, estimated 4–7 days in transit, and Standard, estimated 9–15 days.

All transit times are estimates, not guarantees. They are counted in business days from dispatch, not from when the order is placed, and exclude time in customs. Orders are dispatched within [X business days] of payment confirming.

You are responsible for providing a correct, deliverable address. We are not liable for loss caused by an address error, and a reshipment in that case is chargeable.

If your order is not marked delivered within [X] days of the end of its estimated transit window, contact us and we will [reship at no cost / refund in full / offer store credit].

This guarantee applies where: the address was correct and complete, the claim is raised within [X] days of dispatch, and the delay is not caused by [customs seizure / carrier force majeure / an event listed here].

Carrier backlogs, weather, customs inspection, and public holidays can extend transit beyond the estimate. A package still moving in tracking is considered in transit, not lost, and we ask that you allow [X] additional days before opening a claim.

Where a delay is within our control — a dispatch error or a processing backlog on our side — we will [remedy: reship / upgrade shipping / refund shipping].

We will reship free of charge where a package is confirmed lost in transit, is returned to us undelivered through no fault of yours, or arrives damaged such that the contents are unusable.

Reshipment requests must be made within [X] days of [dispatch / last tracking movement]. Damage claims require photographs of the packaging and contents. A reshipment is limited to [one per order / X per customer per Y months], and we may offer a refund instead of a reshipment at our discretion.

Reshipments to a corrected address after a delivery failure caused by an incorrect address are charged at [full / discounted] shipping cost.

We stand behind what we ship. If a product arrives not as described — wrong item, wrong quantity, or outside the specification on its certificate of analysis — tell us within [X] days of delivery and we will [replace it / refund it / credit your account].

Where a purity or identity claim is disputed, we may ask for [third-party analysis / return of the unopened vials] before resolving. Our liability under this guarantee is limited to the amount you paid for the affected item.

Because these are research materials whose storage conditions cannot be verified once they leave us, we [do not accept / accept only under conditions X] returns of correctly supplied items.

Approved refunds are issued in [cryptocurrency to the sending address / store credit] within [X] business days. Refunds in crypto are made at [the value at time of purchase / the value at time of refund], which you accept may differ.

You are the importer of record. Any duties, taxes, or charges levied on import are yours to pay. Where a shipment is detained or seized by customs, we will [reship once / refund / offer no remedy].

We do not ship to [list restricted countries / states].

To the fullest extent permitted by law, our total liability for any order is limited to the amount you paid for that order. We are not liable for indirect or consequential loss, including lost research time, lost data, or lost profit.

Nothing in these terms limits liability that cannot lawfully be limited.

We collect only what we need to process and ship your order, and we do not sell your data. See our [privacy policy — page to be written] for detail on what we store and for how long.

We may update these terms. The version in force for your order is the one published when the order was placed. Material changes will be noted by the “last updated” date above.

Questions about an order or these terms: [support email]. Registered entity and address: [legal entity name and address]. Governing law: [jurisdiction].