Frequently Asked Questions

A PQRS account is required to access certain account-restricted catalog information and applicable ordering features.

Your account also provides access to order history and other account-related information.

Visit the PQRS registration or My Account page and complete the requested information.

Follow any email-verification instructions sent to the email address associated with your account.

Email verification helps confirm account ownership and protects access to account and ordering features.

If the verification message does not arrive, check your spam or junk folder and confirm that your registration email address is correct.

Confirm that you are using the email address associated with your PQRS account and that your password has been entered correctly.

If needed, use the password-reset option on the My Account page . Contact PQRS if you still cannot access your account.

Visit the My Account page and use the lost-password option.

Follow the instructions sent to your account email. Check your spam or junk folder if the message does not appear within a few minutes.

Sign in and open the Orders section of My Account .

Available information may include order status, totals, and related order details.

Contact PQRS as soon as possible if you need to request a change or cancellation.

Once an order has entered fulfillment or shipped, modification or cancellation may no longer be possible.

Contact PQRS with your order number and clear photographs of the item received.

PQRS will review the order and determine the appropriate resolution under the applicable Refund & Replacement Policy .

Review the order and any available shipment or tracking information first.

If an item remains unaccounted for, contact PQRS with your order number and the details of the missing product.

Sign in and view the Orders section of your PQRS account.

You may also receive status and shipment emails as your order moves through processing and fulfillment.

PQRS checkout offers three payment options: Crypto Pay, Card Pay, and Digital Wallet Pay (Venmo, PayPal, Cash App, Zelle, or Krak). The checkout page explains each option so you can choose the one that suits you.

No. With Card Pay, you pay with a credit or debit card, and a payment provider purchases the cryptocurrency required for your order and sends it to PQRS for you. Digital Wallet Pay lets you pay with Venmo, PayPal, Cash App, Zelle, or Krak. You only need your own crypto wallet if you choose Crypto Pay.

Provider fees, limits, holds, availability requirements, and identity-verification procedures may apply.

Select Crypto Pay, choose a supported cryptocurrency and network, and place your order.

PQRS will display the exact payment amount, receiving address, QR code, required network, and payment quote. Send the requested amount, then paste the transaction ID from your wallet into the verification box so we can confirm it. On Solana, the transaction ID is called the transaction signature.

Crypto Pay currently offers USDT, USDC, PYUSD, and USDG on several networks, plus Bitcoin, Ethereum, and POL. The choices are grouped by network in the selector at checkout.

Always use the exact cryptocurrency and network shown during checkout. Funds sent through an incorrect or unsupported network may be permanently unrecoverable.

The quoted payment amount is generally locked for 15 minutes. Send the payment and submit the transaction ID before the quote expires.

Blockchain confirmation itself may finish after the quote timer has ended.

Your order may remain On Hold while the blockchain confirms and verifies the submitted transaction.

Do not send the payment again simply because confirmation is still pending.

Select Card Pay and place your order. You will be taken to Stripe’s secure payment page. Stripe may ask you to sign in or create a quick account, then shows a wallet address and asks you to confirm it. That address belongs to your order, so just confirm it and continue to the card step. You do not need a crypto wallet. Then pay by credit or debit card. Apple Pay or Google Pay may also be offered where your device and the payment provider support them.

Once the payment completes, your order confirms automatically. There is no transaction ID to submit. For a full walkthrough, see How to Pay with Card Pay.

Card payments work best with US-issued cards. Cards from other countries, and some from US territories, may not be accepted. If your card is declined, please choose another payment method.

First-time payments may require a one-time ID check or face scan. Financial regulations require it, the payment provider carries it out, and PQRS never sees or stores your ID information.

No. With Card Pay, Stripe shows a wallet address and asks you to confirm it. It is the payment address for your order, filled in automatically so the cryptocurrency purchased for it is sent directly to PQRS. The address is locked, so you cannot change or mistype it, and you do not need a wallet of your own. Just press the button to continue to the card step.

Every order has its own address and payment link. Never reuse an address or link from an earlier order. If any other provider ever lets you edit the address, do not replace it, because changing it can misdirect the payment and prevent PQRS from verifying your order.

The checkout timer runs for 4 hours, but a payment link can still be paid for up to 7 days. You do not need to place a new order. Sign in, go to My Account, then Orders, and select Pay next to your order while it still shows Pending payment. You can also contact us and we will help.

Select Digital Wallet Pay, choose Venmo, PayPal, Cash App, Zelle, or Krak, and place your order. The payment page will show the exact order total, the wallet’s QR code, and payment information for PQRS.

Send the exact amount shown, then select “I’ve Sent Payment.” Uploading a payment screenshot is preferred but optional. Do not include a payment note. If the provider requires one, enter “Tickets” (or the ticket emoji) only.

No. The screenshot is supporting documentation only.

The order remains On Hold until PQRS locates and verifies the corresponding payment in the receiving account.

Krak may require identity verification. Newly funded balances may also be subject to withdrawal holds, so confirm that your balance is available to send before selecting Krak for an immediate payment.

Card Pay is carried out by independent third-party providers, who determine their supported payment methods, minimums, transaction limits, exchange rates, verification procedures, approval rules, and fees. Venmo, PayPal, Cash App, Zelle, and Krak have their own rules as well.

Availability may vary by device, location, bank, card issuer, account eligibility, and transaction amount.

Return to PQRS checkout and select another available payment method.

A decline from one method does not necessarily mean another available option will also be declined.

Free Shipping is available when the merchandise total remains at least $300 after coupons and discounts.

If a coupon reduces the qualifying merchandise total below $300, the applicable paid shipping rate will be displayed. Free Shipping applies to orders shipping within the United States, excluding U.S. territories. Orders shipping to Puerto Rico and other U.S. territories are charged a flat shipping rate of $18.50 regardless of order total.

PQRS currently ships within the United States and its territories (Puerto Rico, Guam, the U.S. Virgin Islands, American Samoa, and the Northern Mariana Islands).

International shipping is not currently offered.

PQRS orders are fulfilled from Texas.

When tracking information becomes available, it may be provided by email and associated with your order.

You can also review available order information through your PQRS account.

Review the latest tracking information first. Carrier scans and delivery estimates can sometimes update after a package has already moved.

If the shipment appears stalled or another delivery problem occurs, contact PQRS with your order number and tracking information.

PQRS products are supplied for research use only.

They are not intended for human or veterinary use.

No. PQRS products are for research use only. Not intended for human or veterinary use.

Follow the storage instructions displayed on the applicable product label or product page.

Storage requirements vary by material. Certain peptides and biological compounds may require refrigerated storage, while stable laboratory solutions and other compounds may have different requirements.

Product pages may include applicable identity information, concentration or amount, chemical or sequence information, research context, storage instructions, and other disclosed specifications.

Where applicable, analytical or batch-related documentation may be available through product pages, the Transparency page , or other PQRS documentation resources.

Lot-specific results apply only to the identified lot or batch.

Research products represented as 99% purity are guaranteed to meet or exceed that disclosed specification based on applicable analytical testing.

Certain complex materials may carry a different disclosed specification. In those cases, the applicable guarantee is based on the specification disclosed for that material.

No. Specifications may vary depending on the material and applicable analytical standard.

PQRS aims to disclose the applicable specification rather than represent every product under one universal purity threshold.

Contact PQRS within the applicable claim period and provide your order information, product or batch information, and the complete third-party analytical report.

PQRS may compare submitted results with available manufacturer, supplier, retained-sample, or batch records.

If the material is verified below its applicable guaranteed specification, the resolution may include replacement or refund under the Refund & Replacement Policy .

No. PQRS quality representations concern product identity, disclosed specifications, and related quality criteria.

They are not guarantees of experimental, biological, clinical, or other research outcomes.

Visit the PQRS Transparency page for additional information about product identification, specifications, documentation, and quality accountability.

Eligibility for a return, refund, or replacement depends on the circumstances and applicable PQRS policy.

Review the Refund & Replacement Policy for current requirements.

Contact PQRS promptly with your order number and clear photographs showing the affected product and packaging.

Damage or shipping-condition claims should be reported within the period stated in the applicable Refund & Replacement Policy.

Provide the order number, product and lot or batch information when available, a description of the issue, and relevant supporting analytical documentation.

Independent purity or identity claims should include the complete report from the third-party laboratory.

Refresh the page and, when appropriate, clear the browser cache or try another browser.

If the issue continues, contact PQRS with the page you were using, a description of the problem, and any relevant error message or screenshot.

Visit the PQRS Contact page for assistance with orders, accounts, payments, shipping, documentation, quality claims, or website issues.