How to test a peptide vial in the Philippines

One buyer, one vial, from your shelf to a published record. Testing has not opened yet, so prices and turnaround will appear on /pricing once the partner laboratory is signed.

Step 1. What do you want to know about the vial?

The question decides the test. Most buyers want three answers: is the molecule the one on the label, how pure is it, and how many milligrams are in the vial. Some also want bacterial endotoxin. Tested.ph will offer three packages:

The methods library explains what each technique can and cannot show.

Step 2. Is the vial suitable for testing?

Only a sealed, unopened vial with its label intact can be accepted; once opened, a result can no longer be tied to what the seller shipped. Check:

• The flip-off cap and crimp are in place and the stopper has not been pierced.
• The label is readable and shows the compound and the label claim in milligrams.
• A batch or lot code is printed on the vial, the box or both.
• The powder looks as it did when it arrived. Note anything unusual, but do not open the vial to look closer.

The manufacturing guideline ICH Q7 defines a batch number as a unique combination of numbers, letters or symbols that identifies a batch and from which its production and distribution history can be determined. Without it, a result describes your vial alone and cannot be matched to anyone else's.

Step 3. Photograph the label and batch code

Take a clear, well-lit photo of the label and batch code before the vial leaves your hands, including the box if the code is printed there. Keep the original file rather than a screenshot or forwarded copy, so the date and detail are preserved. The photo lets you, and anyone you share the record with, match the published batch code to the vial you bought.

Step 4. Has this batch already been tested?

Before ordering, check whether a record for the same batch already exists. If it does, you can read it at /verify with its task number and key, or find it through the Tested Index once records are published. If several people in a group chat bought from the same batch, a group test lets one sealed vial answer for everyone, with every buyer receiving the same task number and key.

Step 5. Order on the test page for your compound

Each compound has its own test page, for example the tirzepatide test page. Until testing opens, the page takes your email address so you are told when it does. Once it opens, ordering asks for three things:

1. The package you chose in step 1.
2. Where you bought the vial. The vendor name stays private unless you choose a public record.
3. Whether you want a public record or a private one. A private record opens only for people holding its key.

Step 6. Get the vial to intake

Pack the vial so it stays sealed, upright and protected from crushing, heat and light, and send it to intake by the route offered for your area. Drop-off points, pickup coverage and courier options will be published city by city once confirmed; the courier and drop-off guide covers packing.

Keep transit short. Stability testing, as the guideline ICH Q1A(R2) puts it, exists to show how the quality of a substance varies with time under temperature, humidity and light. A test can only describe the vial as it arrives.

Step 7. What happens at intake?

At intake the sealed vial is photographed and its label is covered. It is given a sample code, and from this point the partner laboratory sees only that code. The vendor's name stays with Tested.ph. This is what makes the analysis blind: the people measuring the vial cannot know whose product it is.

The WHO model certificate of analysis lists, among a certificate's contents, the number the laboratory assigned to the sample on receipt and the date it was received, so the result traces back to the item that arrived.

Step 8. The partner laboratory runs the analysis

The partner laboratory checks identity by mass spectrometry, purity by HPLC, and the amount in the vial against a reference standard, plus endotoxin if you ordered it. Tested.ph does no analysis itself. The partner laboratory will be named once it is signed.

Step 9. The report is signed, fingerprinted and sent for reply

The partner laboratory's registered chemist signs the report. Under the Chemistry Profession Act, RA 10657, Section 40, a document related to the practice of chemistry is official or admissible for legal purposes only when signed by a registered chemist with a registration number affixed.

Tested.ph then stores the PDF and records its SHA-256 fingerprint, so any later copy can be checked against the original. Before publication, the vendor has 72 hours to reply. A reply is published alongside the record; it does not change the result.

Step 10. Read and share your record

Every record has a task number and a key, written together like 1042-K7QX9M. Enter them at /verify to open the record as published. Corrections, if any are ever needed, are logged in public rather than edited quietly.

Read the batch code and analysis date first, then the scope (which tests were run and which were not), and only then the numbers. The COA checker walks through any certificate in that order.