Question 1

Which analysis do I need?

Accepted Answer

Answer up to three quick questions in the test finder and you get one recommendation with its price from our catalogue, plus a button to order it.
Still unsure? Ask our assistant, or write to us before ordering.

Question 2

I don't know what compound my sample is. What should I choose?

Accepted Answer

• Anabolic steroid? Choose Anabolic steroids. You can send the vial or syringe without a label: we identify which steroid it is by GC-MS + NMR against our full steroid panel and measure how much there is, at the same price as a declared sample.
• Peptide? Choose the Advanced impurity panel (LC-MS/MS).
• Anything else? Write to us first and we tell you which test fits.
See it in Services or start in Request analysis.

Question 3

I think I know what it is, but I'm not 100% sure. What should I choose?

Accepted Answer

Choose the category or compound that most closely matches what you suspect, and type the exact name you believe it is in the Compound name field. Our analysis will specifically confirm or rule out that compound.

Question 4

What's the difference between SARMs and SERMs?

Accepted Answer

SARMs act on androgen receptors (related to muscle mass). SERMs act on estrogen receptors (typically used in post-cycle therapy).
If you're not sure which one your compound is, use Unknown substance identification instead of guessing.

Question 5

My sample is a single vial with several ingredients mixed together. Is that "Blend / mix" or several products?

Accepted Answer

That's Blend / mix (multiple components): one vial, several ingredients (for example, a GLOW-type blend combining GHK-Cu, BPC-157 and TB-500). List the components you believe it contains in the Compound name field.
Several separate samples are different: use + Add another product in the order form, which lets you pay for everything together in one order.

Question 6

Do I need the additional services (heavy metals, endotoxins, microbial safety)?

Accepted Answer

Only if you're concerned about product safety beyond identity and purity, for example, if you want to rule out microbial contamination. Most clients don't need them for a standard analysis.
You can add them in the order form. Prices are on Pricing.

Question 7

What is mass confirmation (HPLC-MS)?

Accepted Answer

An optional add-on for peptides and peptide blends, €40 per sample. The sample is run by HPLC-MS, so the identity of the peptide is also confirmed by its molecular mass, in addition to purity and content.
The mass spectrum is then added to the certificate, next to the chromatogram.

Question 8

Can I get the chromatogram on my certificate?

Accepted Answer

Yes. For peptides and anabolic steroids it is included in the price, on every certificate: the chromatogram of your sample, as exported by the instrument, with the main peak and its retention time labelled. We believe showing the data behind the result is the honest way to report it.
• No extra cost, nothing to add to your order
• With mass confirmation (HPLC-MS), the mass spectrum is added too
• Not available for other sample types

Question 9

Can I get the raw data of my analysis?

Accepted Answer

Yes, as an add-on: Raw data, €70 per sample. You get complete access to all the background data of your sample, as exported by the instruments, for the main analysis and for any add-on tests on that sample.
• Sent as a PDF annex (usually 6 to 12 pages) with your certificate
• Exporting everything takes the lab extra time: delivery takes 7 working days longer
• Separate from the chromatogram on the certificate itself (included for peptides and steroids)

Question 10

Do you have a complete package for manufacturers and companies?

Accepted Answer

Yes: the Complete Peptide Analysis, €550 per batch. Everything about one batch of one peptide, in one order:
• Identity, purity and content by HPLC-MS (identity confirmed by molecular mass)
• The full chromatogram with its mass spectrum
• Endotoxins (LAL)
• Sterility testing (USP <71>)
• Screening for other peptides that should not be there (LC-MS/MS panel)
• The complete raw instrument data
You receive one complete certificate and one raw data annex, usually 8 to 12 pages in total. 3 vials of the same batch are required (sterility needs a full vial). Turnaround is about 25 business days. Bought test by test it would cost more, so the package saves you money. You can order it online, or ask for a quote for several batches.

Question 11

How do I start an order?

Accepted Answer

Use Request analysis, complete the order and pay. After payment you receive the shipping address and packing instructions.
Do not ship a sample without an order number.

Question 12

How can I pay?

Accepted Answer

• Bitcoin (recommended), processed through our own self-hosted payment infrastructure. Always available.
• Revolut, Wise or PayPal, through Peer, our payment partner, subject to availability.
• Other cryptocurrencies (USDC, USDT, ETH, SOL and more, on several networks), through Peer.
The price is the same with every method. Payment details are generated automatically for each order, and we do not store payment credentials on the website.
Watch the step-by-step video guides on How to pay, and see every check a payment goes through on Is it safe to pay?

Question 13

How do I pay with Bitcoin?

Accepted Answer

After you confirm your order, choose Bitcoin on the payment step. A payment page opens with the exact BTC amount and a QR code: scan it with any Bitcoin wallet or exchange app, or tap Pay in wallet, and send exactly the amount shown.
As soon as the payment is confirmed we email you the receipt and the shipping address.
Watch it in 52 seconds on How to pay.

Question 14

Is it safe to pay with Revolut, Wise or PayPal through Peer?

Accepted Answer

Yes. You pay inside the app you already use, and we never see your login, your card or your bank details.
• Your transfer goes to a seller on Peer's marketplace whose funds are locked in escrow on the blockchain. They are released towards us only with a cryptographic proof that you paid.
• Peer notifies our server with a digital signature. A forged notice, or an old one sent again, is rejected.
• Our server then asks Peer again directly: exact price, paid to our wallet, fully paid, no chargeback. If anything doesn't match, the order is not marked as paid and the lab gets an alert.
Walk through it step by step on Is it safe to pay?

Question 15

PayPal, Revolut or Wise shows as unavailable. Why?

Accepted Answer

Payments with these apps go through Peer's marketplace, so an app is only offered when it is available there at that moment. Availability changes during the day and can depend on the amount.
Try again a little later, or pay with Bitcoin, which is always available. The price is the same either way.

Question 16

How long are my payment link and my quote valid?

Accepted Answer

• Payment link: 24 hours. Unpaid orders are removed after that; you can simply place the order again.
• Quote: 30 days from the date it was issued. The validity date is printed on the quote.
Get a quote any time on Pricing.

Question 17

I sent the wrong amount, or paid twice. What happens?

Accepted Answer

• Wrong amount: the order is not marked as paid and we get an alert. Write to us with your order number and we sort it out.
• Paid twice: our system detects it and flags it.
Any overpayment is refunded by the same payment method. Email contact@convalencelabs.com with your order reference (REQ-...).

Question 18

Is the payment receipt my tax invoice?

Accepted Answer

No. Right after payment you receive a payment receipt confirming the amount we received for your order. It is not a tax invoice.
Your tax invoice is issued separately by our accounting department.

Question 19

What is your refund policy?

Accepted Answer

It depends on the stage of your order:
• Before your sample arrives at the laboratory: full refund of the analysis fee on request. Payment-network fees (e.g. Bitcoin miner fees) can't be recovered.
• Within the first 24 hours after your sample is received: you can still request a refund of the analysis fee.
• After those 24 hours: the analysis has started or is queued with reserved capacity, so refunds are no longer available.
• If we can't analyse your sample for a reason on our side — including a major incident at the laboratory (for example fire or earthquake) or a matrix we can't test: we refund the analysis fee in full, or agree a replacement submission by email.
• After a Certificate of Analysis has been issued: no refund. The service is complete.
Where applicable, refunds go back via the original payment method where possible and may take several business days. Email contact@convalencelabs.com with your order reference (REQ-...).

Question 20

Can we test as a group?

Accepted Answer

Yes. Group orders are handled manually. Use the contact form with the subject "Group testing" and list what you need. We guide you through ordering and payment.

Question 21

How should I pack and ship the sample?

Accepted Answer

• Seal the vial well
• Protect it against breakage
• Include your order number inside the package
• Use trackable shipping when possible
• Ambient temperature is fine unless we specify otherwise
Full shipping guidelines and the address are sent with your order confirmation after payment.

Question 22

Do I need to send more material for additional services?

Accepted Answer

Sometimes. As a guide:
• Core identity / purity (GC-MS, NMR, HPLC): usually 1 vial is enough
• Heavy metals: enough solid or liquid as indicated in your order confirmation
• Endotoxins: preferably 1 vial (2 if available)
• Microbial limits: preferably unopened material when possible, to avoid contamination before testing
Exact amounts are confirmed after you place the order.

Question 23

What happens if my package is lost in transit?

Accepted Answer

Responsibility for the shipment to the laboratory lies with the sender until the package is checked in at our premises.
If a package is lost or delayed by the courier: contact the courier first with your tracking number and open a claim if available. Then email contact@convalencelabs.com with your order reference (REQ-...) and the tracking number so we can note the case.
We cannot analyse a sample we have not received, and we cannot treat a courier loss as a completed test. Options typically include:
• Sending a replacement sample under the same order reference (when still appropriate)
• A refund of the analysis fee, if no sample has been checked in and testing has not started. Payment network fees are not recoverable.
We recommend trackable shipping and keeping proof of postage until you receive our "sample received" email.

Question 24

Where do you accept samples from?

Accepted Answer

We currently accept samples for testing only from clients located within the European Union. Packaging and shipping instructions are provided after payment.

Question 25

How long does testing take?

Accepted Answer

Counted from the day your sample arrives at our laboratory:
• Individual peptides: about 2 weeks
• HGH (human growth hormone): about 3 weeks
• Sterility (USP <71>): 18 to 20 business days, because of incubation
• Most other categories: typically within 14 business days
We do not offer rush or expedited testing: every sample follows the same queue. We email you when your sample arrives and again when your certificate is ready.

Question 26

Can I expedite testing?

Accepted Answer

We're sorry, but no. All samples follow the same queue and the same analytical protocol, so we do not offer rush or preferential testing. It keeps every result equally fair.

Question 27

What does the standard analysis include?

Accepted Answer

Identity, quantification and purity using our core methods (GC-MS + NMR, with HPLC where applicable). The certificate refers only to the specific sample tested.
What each test reports is detailed on Services.

Question 28

Do you run NMR in your own laboratory?

Accepted Answer

Not at the moment. Our NMR instrument is temporarily unavailable, so NMR analyses are currently carried out by a partner laboratory. We still offer NMR, and its results appear on your Convalence Labs certificate as part of your report.
We will update this answer as soon as NMR is back in our own laboratory.

Question 29

How do you confirm the identity of a peptide?

Accepted Answer

By reverse-phase HPLC. Identity is confirmed when the main peak matches the retention time of a certified reference standard of the same peptide, run under the same conditions.
• Purity is the area % of the main peak
• Content in mg is calculated against the reference standard of known concentration
Add mass confirmation (HPLC-MS) to also confirm the identity by molecular mass.

Question 30

Can I submit a blind sample (no declared substance)?

Accepted Answer

Yes. You may send a sample without declaring the substance. If you do declare it, we use that information to select methods and reference standards. The analysis remains independent either way.

Question 31

What are additional services?

Accepted Answer

Optional tests beyond the standard panel, for example:
• Heavy metals (ICP-MS screening)
• Endotoxins (LAL chromogenic assay)
• Microbial limits (TAMC / TYMC plate count)
• Sterility (USP <71>)
Select them when you place the order. Each service is reported in its own section on the certificate.

Question 32

Can I get a report without sending a sample?

Accepted Answer

No. Every certificate is based on a physical sample we receive and analyse.

Question 33

What happens to my sample after testing?

Accepted Answer

The sample is used only to perform the requested analysis and to support the Certificate of Analysis for that submission. We do not use submitted samples for purposes unrelated to your order.
After testing, any remaining material is retained for a limited period for quality and traceability purposes, then securely destroyed. Samples are not returned by default.
If you need a specific retention or disposal arrangement, write to contact@convalencelabs.com before shipping, with your order reference once you have one. We confirm what is possible for that order.

Question 34

How do I verify a certificate?

Accepted Answer

Go to Verify a report and enter the report number and verification key printed on the PDF, or scan the QR code on the certificate. Anyone with those details can confirm it is authentic.

Question 35

How can I share my certificate?

Accepted Answer

With your results we send you two things, and you decide what to do with them:
• The PDF certificate, to keep or send
• A direct link that opens the full certificate online, already verified. The QR code on the PDF opens the same link.
Each link carries a unique code that cannot be guessed, and certificates are not listed anywhere public. Anyone you give the link to can see the certificate; who that is, is up to you.

Question 36

Does the report apply to my whole batch?

Accepted Answer

No. Results apply only to the sample we received and tested, on the stated date and with the stated method.

Question 37

Are reports confidential?

Accepted Answer

Yes. Sample and report data are handled under our security practices. Certificates are not listed in a public directory; viewing one requires its direct link, or the report number and key.

Question 38

What does "recorded in Bitcoin" mean?

Accepted Answer

For certificates issued from 20 October 2026, three steps of your order are recorded in the Bitcoin blockchain: payment confirmed, sample received and certificate issued. We use OpenTimestamps, a free public timestamping service, and Bitcoin acts only as a permanent public register.
It proves that your certificate PDF existed on that date and has not changed since. Not even we can alter it without it showing. It does not judge the analysis itself: that rests on our methods, reference standards and analysts.
Check it yourself: open the certificate at Verify a report, download the proof (.ots), and drop it together with the original PDF at opentimestamps.org.

Question 39

Is any of my data written to Bitcoin?

Accepted Answer

No. Only fingerprints leave our server: a 64-character code from which the document cannot be rebuilt. For payment and reception, the fingerprint is of an internal record that includes a random code, so it cannot be guessed or linked to you. Thousands of fingerprints from around the world are combined into a single code before it reaches Bitcoin.
• No name, email, address or phone
• No amount, payment method, wallet or transaction
• The verify page never shows payment details
It works the same however you pay. Paying with Bitcoin is a separate transaction, and we never link it to your certificate.

Question 40

Do you manufacture or sell substances?

Accepted Answer

No. We only provide independent analytical testing. We do not formulate, manufacture or sell the materials we test.

Question 41

How can I contact you?

Accepted Answer

Use the contact form or email contact@convalencelabs.com.

Question 42

How fast do you reply?

Accepted Answer

We aim to respond within 24-48 hours on business days (Monday to Friday 8:00–18:30, and Saturday 10:00–13:30, Spain time). If you can't find our reply, check your spam folder.

Question 43

Is there a phone number?

Accepted Answer

Yes. Customer service is available by phone and on Telegram, Monday to Friday 8:00–18:30 and Saturday 10:00–13:30 (Spain time):
• Phone: +34 644 931 270
• Telegram: @Convalencelabs
• Email: contact@convalencelabs.com, best for anything about an order, so there is a written record
Never send verification keys or payment details by phone or chat.

Answers, before you ask.

Choosing a test

Ordering & payment

Shipping your sample

In the laboratory

Results & certificates

About us & contact