Frequently Asked Questions
Clear answers about ordering, shipping problems, product appearance, batch testing, sourcing, research-use boundaries, and support.
Before ordering for your research
Independent researchers and laboratory teams need the same clear purchasing information: material specifications, available evidence, buyer requirements, current stock and delivery terms. Review these before paying.
Who may purchase Panda research materials?
Our Terms of Service require buyers to be at least 21 and qualified, properly trained research or laboratory professionals. Purchases must support lawful research through a laboratory, institution, university, company or other qualified research setting. We may request verification. An independent research setting must meet the same requirements; these materials are not for human or veterinary use.
What should I check on a product listing?
Confirm the exact material, supplied form, selected size or labeled amount, quantity, price and availability. Then review the available lot-specific documentation and its stated test scope. Use the supplier checklist and free COA worksheet to keep your requirements and evidence together.
What if I need documentation that is not shown?
Ask support@pandapeptides.com before ordering. Include the product name, selected size, lot or report identifier if available, and the specific document or analytical result you need. We can clarify available records; do not assume that an unlisted test was performed or that a document can be supplied.
How do I check availability and the final order cost?
Check availability for the selected product and size, then review the items, quantities, shipping, applicable taxes and total at checkout. Inventory and available options can change. Review the Shipping Policy, Return Policy and order terms before paying; placing an order does not guarantee acceptance or fulfillment.
Vials, sizes & quantities
Choose the material and size your research calls for, then choose how many vials to order.
Is the price for one vial or a kit?
Panda’s current individual product listings are sold by the vial, not by the kit. Quantity 1 means one vial; quantity 3 means three vials of the selected option. Review the price and line total in your cart.
Does quantity change the size of the vial?
No. The selected size or labeled amount applies to each vial. For example, selecting 10mg with a quantity of 2 means two vials labeled 10mg each—not one 20mg vial. Labeled amount and laboratory-measured content are different facts; sample results are available in the reports linked from the product.
Does a blend come in one vial or separate vials?
Panda blends combine their listed components in one vial. For example, a blend labeled 5mg + 5mg contains both components in one vial, totaling 10mg of labeled content—not two separate vials. Where a product offers options, select the composition you need before choosing quantity.
What do mg, mL, mg/mL and IU mean?
mg expresses mass; mL expresses volume; mg/mL expresses concentration. A solution labeled 10mg/10mL lists 10mg in a total volume of 10mL, not 10mg in each mL. IU expresses biological activity in international units and has no universal conversion to mg. Check the product’s exact supplied form and units.
For measured sample results, see how to read analytical results.
Orders and shipping
How fast do orders ship?
Orders are typically processed within 1–2 business days after payment is confirmed. The fulfillment cutoff is 3:00 p.m. Eastern time, Monday through Saturday. Orders confirmed after the cutoff, on Sundays, or on postal holidays are treated as received the next business day.
What does shipping cost, and where do you ship?
Panda currently ships within the United States only. USPS Priority Mail is $10 flat rate and free on orders of $50 or more. After dispatch, USPS Priority Mail typically arrives in 1–3 business days. Including the typical 1–2 business day processing period, most orders arrive in 2–5 business days total. These are estimates, not guaranteed delivery dates. See the Shipping Policy.
Will I receive tracking?
Yes. Tracking is emailed after the order ships. You can follow it through Panda or directly on the carrier’s website. A label-created scan means the carrier has the shipment information; movement may not appear until the carrier performs its first physical scan.
What payment methods are available?
The live checkout shows the currently available options, which may include Cash App (LN), Zelle, bank transfer, and credit card. Card payments currently show as PANDA XYLO RESEARCH on the statement. Other payment methods may show their processor or merchant descriptor instead of Panda Peptides.
Order help after checkout
The quickest resolution depends on whether the issue happened before shipment, during carrier transit, or inside fulfillment. These answers tell you what to check and what evidence helps.
I entered the wrong shipping address. What should I do?
Contact support@pandapeptides.com immediately with your order number and the complete corrected address. We can change it only before the order ships. Once a parcel has shipped, a carrier redirect may not be available, and Panda is not responsible for delivery to an incorrect address supplied at checkout. See the Shipping Policy.
I did not receive an order or tracking email. What should I check?
Check spam, junk, and promotions folders, then confirm the email address entered at checkout. An order confirmation and a shipping email are separate: tracking is sent only after dispatch, and processing begins after payment is confirmed. If the message is still missing, contact support with the name and email used for the order so we can verify its status.
Tracking is delayed or has stopped moving. When should I contact Panda?
Carrier scans can be delayed or skipped. Continue monitoring the carrier record, including any updated delivery estimate. If tracking shows no movement for 10 business days, or the carrier confirms the parcel is lost sooner, contact support with your order number. We will verify the shipment and handle an eligible loss under our Return Policy.
Tracking says delivered, but I cannot find the package. What should I do?
First check the mailbox or parcel area, entrances, household members, neighbors, building office, and mailroom. Confirm the shipping address on the order, then contact the local carrier office because GPS or delivery-scan details may help locate it. If it remains missing, email support within 30 days with your order number, confirmed address, and the checks already completed. A delivered scan is reviewed differently from a carrier-confirmed loss, so the available resolution depends on the evidence and our policies.
My package arrived damaged. What should I send?
Keep the parcel, packaging, and affected products. As soon as possible—and within 30 days of the carrier’s delivery timestamp—email support with your order number and clear photos of the shipping label, outer packaging, inner packaging, all contents, and each damaged vial or product label. Do not discard the evidence before our review.
An item is missing or incorrect. How is that handled?
Photograph the shipping label, the opened package, all contents together, and the label of any incorrect item. Email the photos and order number to support within 30 days. We compare the report with our packing records and review it as a fulfillment issue—not as a carrier-loss claim—under our Return Policy.
Product appearance and transit
Appearance can be useful evidence, but it does not replace the analytical results shown on a batch report.
Why is the material a dry cake or powder instead of a liquid?
Most Panda peptide products are supplied in a lyophilized (freeze-dried) state, so the material may appear as a dry cake, powder, or thin residue inside the vial. That is the expected physical form for these research materials; they are not shipped as prepared solutions.
Does a cracked or shifted dry cake mean the product is damaged?
Lyophilized material can shift or fragment during transit. A broken or uneven cake by itself does not establish the product’s identity, purity, or measured content. Inspect the vial and seal instead: if the glass is cracked, the stopper or seal is displaced, moisture or leakage is visible, or anything else appears compromised, set the vial aside and send clear photos to support.
Should I be concerned about temperature during shipping?
Lyophilization removes moisture and generally improves stability compared with the same material in solution, but stability remains compound-, temperature-, and time-specific. Panda does not make a blanket claim that every product tolerates every temperature or transit delay. Routine ambient transit alone is not evidence that a vial failed its stated batch specification; contact support if the parcel had an extreme delay, physical damage, moisture, or a compromised seal.
Can visible material tell me the vial’s purity or amount?
No. Visual appearance cannot establish identity, purity, or measured content. Use the product’s batch number and the linked independent report to see exactly which tests were performed and what the laboratory reported.
How Panda separates order problems
We classify the cause before choosing a resolution. That keeps a packing mistake, carrier event, and product-quality concern from being treated as if they were the same problem.
Missing or incorrect item
Reviewed against order and packing records using package and contents photos. This is a Panda fulfillment review, not a carrier claim.
Lost, delayed, or damaged parcel
Reviewed using tracking, carrier findings, address details, delivery evidence, and package photos under the Shipping and Return Policies.
Product or specification concern
Reviewed against the product label, batch record, published test scope, photographs, and the 30-day quality-guarantee terms.
Batch testing and COAs
Do you test each customer shipment?
We organize inventory and available laboratory documentation by batch. A published report describes the submitted samples; individual customer shipments are not each separately tested. Match the named lot and tested vial size, not the date an individual order ships. Representative-batch evidence is not a separate finished-vial measurement for every size.
Why can a current product have an older COA?
A tested batch can support inventory for several months. If current inventory is still from that same batch, the report remains the applicable batch record. Our COA archive shows current documentation first and preserves previous accepted reports as history.
Does an endotoxin report prove sterility?
No. Endotoxin testing and sterility testing are separate analyses. An endotoxin result does not establish sterility. Panda does not represent a batch as sterility-tested unless a separate sterility report is published for that batch. Read the test-scope explanation.
How do I verify a report?
Open Lab Reports, select the product, match the batch and tested size, then open the linked ILS Laboratories or Janoshik Analytical report where available. The laboratory record’s own methods and results define what was tested.
How should I evaluate a research peptide supplier?
Start with the exact batch record—not a badge. Match the material, form and labeled amount, identify the independent laboratory, read the methods and results, note what was not tested, then verify the business, policies and support path. Use our six-step supplier checklist.
What each testing scope means
| Scope | What it can document | What it does not establish |
|---|---|---|
| Identity (method as reported) | Whether the sample result is consistent with the named compound under the stated method. Retention-time matching and mass spectrometry are distinct methods. | Purity, amount, endotoxin, heavy metals, or sterility unless separately tested. |
| HPLC purity | Relative chromatographic purity under the reported method. | Vial amount or sterility by itself. |
| Amount / composition | Measured content or component amounts for the submitted sample. | Every other analytical scope not listed on the report. |
| Endotoxin | The reported endotoxin result for the submitted vial. | Sterility. Endotoxin and sterility are separate tests. |
| Heavy metals | The named elemental screen and detection result. | Identity, purity, endotoxin, or sterility. |
| Sterility | Only what a separately published sterility report states. | Never inferred from purity, identity, or endotoxin results. |
Company, sourcing, and research-use boundaries
What does “Research Use Only” mean?
Research Use Only (RUO) means products are offered exclusively as laboratory, analytical, and in-vitro research materials. They are not foods, supplements, or approved drugs; they are not for human or veterinary use; and Panda does not provide dosing, preparation, administration, treatment, or medical guidance.
Where are Panda products sourced?
Many current research materials are sourced overseas, frequently from China. Panda does not manufacture in-house. Suppliers are evaluated for consistency, documentation, communication, and independently tested batch results. We remain open to domestic sources that meet the same standards, and we do not claim visibility into every upstream manufacturing input.
Who operates Panda Peptides?
Panda Peptides is a California-based research-use-only supplier. The public mailing address is 8139 Sunset Ave #151, Fair Oaks, CA 95628.
How do I contact support?
Email support@pandapeptides.com or call/text (916) 678-1880. For order help, include the order number and the evidence listed above when possible.
Verify Panda without taking our word for it
Follow the primary evidence first, then review the business, policy, and independent-feedback paths.