Frequently Asked Questions
Find answers about PQRS accounts, ordering, payment methods, shipping, product information, research-use requirements, quality standards, replacements, and customer support.
Accounts & Access
Registration, email verification, login assistance, and account access.
Do I need a PQRS account?
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.
How do I create a PQRS account?
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.
Why do I need to verify my email address?
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.
What should I do if I cannot log in?
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.
How do I reset my password?
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.
Where can I view my previous orders?
Sign in and open the Orders section of My Account .
Available information may include order status, totals, and related order details.
Ordering
Order changes, cancellations, missing items, incorrect items, and order status.
Can I change or cancel an order after placing it?
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.
What should I do if I received the wrong item?
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 .
What should I do if an item is missing from my order?
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.
How can I check the status of my order?
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.
Payments
Direct cryptocurrency, Krak, and card, bank account, or digital-wallet payments that do not require your own crypto wallet.
What payment methods does PQRS accept?
PQRS checkout offers Direct Crypto Pay, Krak, and a grouped Card, Bank & Digital Wallet option.
Enabled third-party providers currently include Smart Card2Crypto Hosted, Link by Stripe, PayPal, and Robinhood. Available providers may support eligible cards, bank accounts, or digital wallets.
Do I need cryptocurrency knowledge or my own crypto wallet?
No. With Card, Bank & Digital Wallet, an enabled provider accepts your eligible payment method, purchases the cryptocurrency required for your order, and sends it directly to PQRS.
Provider fees, limits, holds, availability requirements, and identity-verification procedures may apply.
How does Direct Crypto Pay work?
Select Direct 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 and submit the transaction hash for verification.
Which cryptocurrencies and networks are supported?
Current Direct Crypto Pay options may include USDT on TRON, USDC on Polygon, Bitcoin, Ethereum, USDG on Solana, and USDG on Ethereum .
Always use the exact cryptocurrency and network shown during checkout. Funds sent through an incorrect or unsupported network may be permanently unrecoverable.
How long is my Direct Crypto Pay quote valid?
The quoted payment amount is generally locked for 15 minutes. Send the payment and submit the transaction hash before the quote expires.
Blockchain confirmation itself may finish after the quote timer has ended.
What if my crypto transaction is still confirming?
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.
How does Krak work?
Select Krak during checkout and place your order. The payment page will show the exact order total, a Krak QR code, and payment information for @PQRS.
Send the exact amount shown and upload a screenshot of the completed payment. PQRS will manually verify the payment before processing the order.
Identity verification will likely be required. Newly funded balances may be subject to withdrawal holds, so confirm that your balance is available to send before selecting Krak for an immediate payment.
Does uploading a Krak screenshot automatically confirm payment?
No. The screenshot is supporting documentation only.
The order remains On Hold until PQRS locates and verifies the corresponding payment in the receiving Krak account.
How do Card, Bank & Digital Wallet payments work?
Smart Card2Crypto Hosted, Link by Stripe, PayPal, and Robinhood are independent third-party providers. An enabled provider accepts an eligible card, bank account, or digital wallet, purchases the cryptocurrency required for your order, and sends it directly to PQRS.
You do not need to own cryptocurrency, understand how crypto works, or create a crypto wallet. Review the provider's final amount, fees, limits, holds, and verification requirements before confirming.
Should I change the automatically entered wallet address?
No. The destination wallet address is automatically entered so the cryptocurrency purchased for your order is sent directly to PQRS.
Do not replace or edit this address. Changing it can misdirect the payment and prevent PQRS from verifying your order.
Why do third-party payment options, fees, and verification requirements vary?
Smart Card2Crypto Hosted, Link by Stripe, PayPal, Robinhood, and other third-party providers independently determine their supported methods, transaction limits, minimums, exchange rates, verification procedures, approval rules, and fees.
Availability may vary by device, bank, card issuer, account eligibility, and transaction amount.
What if a card or third-party payment option is declined?
Return to PQRS checkout and select another available payment provider or method.
A decline from one provider does not necessarily mean another available option will also be declined.
Shipping
Service area, fulfillment, tracking, and shipment questions.
When is Free Shipping available?
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.
Where does PQRS ship?
PQRS currently ships within the United States and Puerto Rico.
International shipping is not currently offered.
Where are PQRS orders fulfilled?
PQRS orders are fulfilled from Texas.
How do I track my shipment?
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.
What should I do if my shipment appears delayed?
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.
Products & Storage
Research use, product information, storage, and documentation.
What are PQRS products intended for?
PQRS products are supplied for research use only.
They are not intended for human or veterinary use.
Are PQRS products intended for human or veterinary use?
No. PQRS products are for research use only. Not intended for human or veterinary use.
How should PQRS products be stored?
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.
Where can I find product-specific specifications?
Product pages may include applicable identity information, concentration or amount, chemical or sequence information, research context, storage instructions, and other disclosed specifications.
Where can I find analytical or batch documentation?
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.
Quality & Purity
Specifications, analytical testing, transparency, and the PQRS quality policy.
What does the PQRS Purity Guarantee cover?
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.
Does every PQRS product have the same purity specification?
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.
What should I do if independent testing appears inconsistent with a stated specification?
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 .
Does PQRS guarantee research outcomes?
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.
Where can I learn more about PQRS quality and transparency?
Visit the PQRS Transparency page for additional information about product identification, specifications, documentation, and quality accountability.
Returns, Replacements & Support
Damaged shipments, quality claims, website issues, and contacting PQRS.
Can research products be returned?
Eligibility for a return, refund, or replacement depends on the circumstances and applicable PQRS policy.
Review the Refund & Replacement Policy for current requirements.
What if my order arrives damaged or compromised?
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.
What information should I provide with a quality claim?
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.
What should I do if I experience a technical problem on the website?
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.
How do I contact PQRS support?
Visit the PQRS Contact page for assistance with orders, accounts, payments, shipping, documentation, quality claims, or website issues.
Research Use Notice
For Research Use Only. Not intended for human or veterinary use. Product information is provided for laboratory identification, research context, handling, documentation, and ordering support. It should not be interpreted as medical advice or a representation of clinical outcomes.
Still Need Help?
Contact PQRS for assistance with an order, account, payment, shipment, documentation request, quality claim, or website issue.