Mail-in lab testing from anywhere in the US
Order online, ship your samples to our Houston laboratory, and get a certificate you can verify by accession number. We test peptides, supplements, cosmetics, raw materials, water and food for customers across the US.
How mail-in testing works
- 1Choose the sample type and assays in sample intake. The itemized price, sample requirements and testing terms are shown before you pay.
- 2After payment, print the inbound label from your order (UPS or FedEx, charged at the carrier's rate) or book a UPS door pickup from your client portal.
- 3Pack each sealed container with only its lot written on it. The order reference matches your parcel to the tests you chose.
- 4We open every package on camera at the Houston laboratory and assign each container a blind code, so the analyst never sees the client or vendor name.
- 5Your certificate lists the methods, instruments and the laboratory that ran each test. Anyone can check it at /verify with its accession number.
Packing and shipping
Peptides. One sealed vial per test, as sold; destructive add-ons such as endotoxin, sterility and heavy metals each need an extra vial from the same lot. Keep one vial yourself in case you want a second laboratory to check a result.
Temperature. Lyophilised powder ships at room temperature. Reconstituted vials, pens and anything perishable should ship early in the week with a cold pack.
Labels. Write the lot on the container and nothing else. Do not add names, vendor marks or notes for the analyst.
Questions first. If the intake does not describe your material, ask us before you ship. See the testing terms and compliance information for what we accept.
Testing by sample type
Peptides
LC-MS/MS identity and HPLC purity, $129 for any peptide or blend, GLP-1s included, or $199 with net content; endotoxin, sterility and metals as add-ons.
Supplements
Label claim, heavy metals and microbiology for capsules, powders and liquids.
Everything else
Cosmetics, raw materials and APIs, water, food and beverages, kratom and more.
Testing in Houston?
The laboratory is at 5151 Mitchelldale St A10, Houston, TX 77092. Houston customers order the same way and can book a UPS door pickup. Read visiting and sending samples in Houston.
Questions about sending samples
Is there a testing lab near me?
Our laboratory is in Houston, Texas, at 5151 Mitchelldale St A10, Houston, TX 77092. Customers in other cities send their samples by mail; we do not run local branches or drop-off counters.
Can I drop off samples in person?
No walk-in drop-offs. Even within Houston, place the order online first and ship the package or book a door pickup; visits and tours of the Houston laboratory are by appointment.
Do I pay for shipping?
Yes. Each order pays its inbound UPS or FedEx label at the carrier's rate, shown before you pay. A door pickup has its own flat fee, also shown before you pay.
How should I pack peptide vials?
Send each vial sealed, as sold, in a padded mailer with only the lot written on it. Lyophilised vials travel at room temperature; reconstituted vials and pens should ship Monday to Wednesday with a cold pack.
How do I check my certificate?
Every certificate carries an accession number and QR code. Enter the number at /verify to see the record the laboratory signed.