The answers below cover the questions we most often hear from china peptide buyers.
Ordering conditions, sourcing model, shipping policy, and payment information.
These commitments apply to fully paid orders from our public catalog. Shipping and cancellation cases remain governed by the applicable policies.
Buyer Support & Order Resolution
Is Peptides of China only a sourcing agent?
No. Peptides of China combines sourcing with order coordination, supplier communication, delivery support, and resolution of supplier-side problems.
What happens if my order is incomplete or contains the wrong product?
Contact Peptides of China with your order details. Once the issue is confirmed, we coordinate the correction directly with the supplier.
What if the supplier refuses or becomes unable to fulfill the order?
Peptides of China arranges an appropriate resolution through alternative fulfillment or a refund, using its own funds where necessary. Any proposed change to your order is agreed with you first.
Does this mean every delivery problem qualifies for a refund?
No. Supplier-side nonperformance, carrier loss, customs events, and cancellation are different situations. Each is handled under the applicable policy, with Peptides of China coordinating the case.
Payments & Crypto
Can I pay with a bank card?
You can use an external service such as Mercuryo to buy cryptocurrency with a debit card and send it to your order-specific address. This is a cryptocurrency purchase, not a direct card payment to Peptides of China. Availability, identity verification and fees depend on the provider and your region. See How to Pay for the detailed instructions.
Why do you only accept cryptocurrency? Can I pay by card or bank transfer?
Conventional payment methods are structurally incompatible with research compound procurement. Banks, card networks, and third-party payment processors apply their own compliance filters to these categories irrespective of whether a transaction is legal in the buyer’s country. Payments are flagged, accounts are reviewed, and processors request documentation that research buyers typically cannot furnish. Even when documentation is provided, the process rarely ends in approval. Holds of 6–8 weeks are routine in this industry and can extend significantly longer. Accepting stablecoins exclusively is a structural decision that protects both parties: payments settle in minutes, without intermediaries, without documentation demands, and without the risk of funds being held by an institution with no framework for research procurement.
Which cryptocurrencies do you accept?
Our standard payment methods are PYUSD on Solana, USDC on Solana, and USDT on TRC-20 (TRON). PayPal and Venmo may be PYUSD sources or senders for eligible users, not Peptides of China checkout processors: use their external-transfer feature to send PYUSD on-chain to the order-specific PYUSD/Solana address. Explicitly select Solana for PYUSD or USDC, and TRC-20 (TRON) for USDT. Availability depends on account and region; identity verification and network fees may apply. Transfers are irreversible, so verify the asset, network, address, and amount before sending.
I have never used crypto before. Is it complicated?
The How to Pay page explains PYUSD on Solana first, with separate PayPal and Venmo external-transfer paths for eligible users. PayPal and Venmo do not process Peptides of China checkout; they can be used to send PYUSD on-chain to the order-specific PYUSD/Solana address. It also covers USDC on Solana and USDT on TRC-20. Providers can require identity verification, charge fees, and limit availability by account or region.
Ordering & Deposits
What is the minimum order?
The public catalog minimum is $300 in goods per supplier order. Shipping is not counted toward the minimum. A new buyer, meaning one with no fully paid ordinary public-catalog order, may place one supplier order below $300 as a first-order trial. Only one supplier order per request can use the trial; every other supplier order must reach $300 or be removed. The trial is held while that order is active, used only once the order is fully paid, and released if the order is cancelled before full payment, even if a deposit was paid. A 5% discount applies to the goods subtotal of a supplier order when that supplier’s gross goods subtotal is $3,500 or more. Shipping is excluded, and suppliers are not combined. Orders already created keep the terms they were placed under. Pharma and pre-orders are excluded.
Do you offer any discounts?
A 5% discount applies to the goods subtotal of a supplier order when that supplier’s gross goods subtotal is $3,500 or more. Shipping is excluded, and suppliers are not combined.
Do you offer free shipping?
No. Shipping is charged separately. The methods and prices currently available for your destination are shown during the request process and confirmed in your final invoice.
What shipping options do you offer?
Available shipping methods, carriers, delivery estimates, and prices depend on the destination, supplier, and parcel. Current options are shown when you submit your request and confirmed in the final invoice.
Are there additional shipping costs for heavier orders?
Shipping is calculated from the current method, destination, supplier, weight, and parcel requirements. Heavier orders may require a higher rate or multiple parcels. The exact shipping total is confirmed in your final invoice.
Why is a $10 processing deposit required?
The $10 deposit initiates manual processing of your request. Once received, our team contacts the relevant synthesis facility to verify real-time stock availability. The deposit is not an extra fee — it is fully credited toward your final invoice.
Why do I need to pay a deposit before the full payment?
The deposit serves as an order validation step. It filters serious procurement requests from speculative inquiries and allows us to prioritize facility allocation for confirmed orders. It confirms your request is ready for processing, initiates manual stock verification with the synthesis facility, and locks in your place in the processing queue. Once your order is verified and the final invoice is issued, the deposit is applied 100% toward your balance — it is not an additional fee. Paying a small deposit first also lets you verify your wallet setup, network selection, and address accuracy before sending the larger final payment.
When is the deposit paid?
The deposit is paid immediately after you submit your request and before stock verification begins. If you cancel before accepting and paying the final invoice, the deposit can be refunded or credited to your client balance for future use.
Why are products only sold in boxes of 10?
We operate as a wholesale sourcing platform, not a retail store. Our logistics are structured around box quantities (standard box formats). We do not repackage or split boxes.
Can I cancel or change an order after final payment?
No. Final payment confirms the order, so customer-requested cancellation or refund is no longer available. If assembly has not started, you may ask to add items; additions remain subject to availability, confirmation, and supplemental payment. If a supplier cannot fulfill a fully paid public-catalog order as agreed, Peptides of China will arrange an appropriate resolution, including agreed alternative fulfillment or a refund.
Sourcing & Quality
How is sourcing structured?
This platform does not operate as a traditional reseller. Requests are routed to specific synthesis facilities rather than fulfilled from pooled or mixed inventory. This reduces batch variability and ensures consistency across orders.
Are products tested for purity?
Products are supplied against the specification shown on the applicable product page. The standard catalog purity specification is ≥98% unless otherwise stated. Product-specific specifications and quality-control information may vary by compound and batch.
Why are some compounds not listed?
The catalog is intentionally curated. Compounds are excluded if we cannot source them consistently, if their risk profiles are elevated, or if synthesis quality is unreliable across batches. We only list what we can stand behind.
What happens if a requested item is unavailable?
If stock cannot be confirmed for one or more items, the final invoice is adjusted to reflect only what is available. Before final payment, you may proceed with the available items or cancel and choose either a deposit refund or client credit for future use.
Is neutral or unlabeled packaging available for private brands?
All orders ship in neutral, unlabeled packaging by default — no supplier branding or origin markings. This applies to every order regardless of order size or buyer type. If you have specific packaging requirements beyond standard neutral packaging, contact us before submitting your order.
Shipping & Customs
Do you ship to all countries?
No. We do not currently accept orders from or ship to Norway, Switzerland, Latin America (all countries), the Middle East (Saudi Arabia, UAE, Israel, Iran, Iraq, Jordan, Kuwait, Lebanon, Oman, Qatar, Bahrain, Syria, Yemen), Pakistan, or most African countries. Exceptions: we do ship to Dubai (UAE) — Dubai only; to South Africa and Nigeria; and to India — with the condition that the shipping address must match the address on the recipient’s government-issued ID. If your country is not on the restricted list, you can proceed with your request normally.
How is shipping handled?
Orders ship using one of the methods currently available for the destination, supplier, and parcel. The selected method, price, and estimated transit time are confirmed in the final invoice. Delivery estimates begin at carrier handover, and tracking information is provided after dispatch.
What happens if my package is lost, returned, or held by customs?
We monitor shipment progress and act when tracking confirms a loss, return to sender, or customs problem; you do not need to submit a separate reshipment request when we have already identified the issue. Qualifying Shanghai Labs shipments have unlimited reshipments until delivery. Qualifying Shenzhen shipments receive one complimentary reshipment. Other situations are reviewed individually.
What if items arrive damaged?
Contact us as soon as reasonably possible. Photos and an unboxing video are recommended so the damage can be assessed. Once damage is confirmed, the affected items may be included in an additional shipment.
Can I order from multiple compound categories?
Yes. You can include compounds from both Signaling Peptides and Bioregulators in a single request. Items from different synthesis facilities may ship in separate packages. This will be noted in your order confirmation.